Tychem C & F permeation data

Dupont Tychem C and F permeation data sheet

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1. DuPont Permeation Guide Tychem Tyvek

16. f or more information on our support services, please contact: DuPont Personal Protection DuPont de Nemours Luxembourg S.àr.l. L-2984 Luxembourg Tel.: +800 3666 6666 (international toll-free) E-mail: personal.protection@lux.dupont.com Or visit our website at: www.dpp-europe.com Techline: Tel.: +352 021 164 043 Website: www.dpp-europe.com/technicalsupport L-30280 - 12/2011 - © Copyright DuPont 2011. The DuPont Oval logo, DuPont TM , The miracles of science TM , Tychem ® and Tyvek ® are trademarks or registered trademarks of E. I. du Pont de Nemours and Company or its affiliates. All rights reserved. Disclaimer This information is based upon technical data that DuPont believes to be reliable. It is subject to revision as additional knowledge and ex - perience becomes available. DuPont does not guarantee results and assumes no obligation or liability in connection with this information. It is the user’s responsibility to determine the level of toxicity and the proper personal protective equipment needed. This information is intended for use by persons having the technical expertise to undertake evaluation under their own specific end-use conditions, at their own discretion and risk. Anyone intending to use this information should first check that the garment selected is suitable for the intended use. The end-user should discontinue use of garment if fabric becomes torn, worn or punctured, to avoid potential chemical exposure. Since conditions of use are beyond our control, we make no warranties, expressed or implied, including but not limited to warranties of merchantability or fitness for a particular purpose and assume no liability in connection with any use of this information. This information is not intended as a licence to operate under or a recommendation to infringe any patent or technical information of DuPont or other persons covering any material or its use.

6. I mportant note: Please use the permeation data as part of the risk assessment to assist the selection of a protective fabric, garment or accessory suitable for your application. Working conditions, exposure conditions (e.g. temperature, pressure, concentration, physical state), and the toxicity data for the chemical need to be taken into account. Breakthrough time is not the same as “safe wear time”. Breakthrough time alone is insufficient to determine how long a garment may be worn once the garment has been contaminated. Safe user wear time may be longer or shorter than the breakthrough time depending on the permeation behaviour of the substance, the toxicity of the substance and the exposure conditions. Breakthrough times are indicative of the barrier performance, but results can vary between the test methods and laboratories. A different temperature may have significant influence on the breakthrough time. Permeation typically increases with temperature. Permeation data are usually measured for single chemicals. The permeation characteristics of mixtures can deviate considerably from the behaviour of the individual chemicals. The permeation data published in this document have been generated for DuPont by independent accredited testing laboratories according to the test method applicable at that time*. The data is typically the average of three samples tested. * EN369, ASTM F739, EN 374-3 or EN ISO 6529 (method A and B). Although the fabric itself may offer a barrier to a certain range of gaseous chemicals, chemical protective clothing category III type 3 made of Tychem ® C, F, C2 or F2 is not gastight. In case you need a barrier to gases or vapours, please take a chemical protective clothing category III type 1, such as Tychem ® TK into consideration. Tychem ® C/C2 and Tychem ® F/F2 garments Tychem ® C Standard and Tychem ® C2 model CHZ5 are certified as chemical protective clothing category III type 3B, 4, 5 and 6 and offer a barrier to pressurized liquids up to a pressure of 2 bar. They are a barrier to a range of concentrated inorganic chemicals. Tychem ® F Standard and Tychem ® F2 model CHZ5 are certified as chemical protective clothing category III type 3B, 4, 5 and 6 and offer a barrier to pressurized liquids to a pressure up to 3 bar. They are a barrier to a range of organic and highly concentrated inorganic chemicals. DuPont TM Tychem ® C, C2, F and F2 garments have stitched and over- taped seams. The seam tape is a special barrier tape which offers the same permeation barrier performance as the fabric itself. Permeation data for Tychem ® C fabric is applicable for the reinforced Tychem ® C2 fabric and permeation data for Tychem ® F fabric is applicable for the reinforced Tychem ® F2 fabric. Permeation data for chemical warfare agents Permeation data for chemical warfare agents is available on request. Contact our Techline: www.dpp-europe.com/technicalsupport • Need selection assistance? • Need technical advice? • No chemical permeation data for your chemical? DuPont experts can provide technical assistance with your fabric and garment selection process. Using a simple web-based questionnaire, please provide relevant information on chemicals, exposure and working conditions for a customized response. Independent permeation testing of your specific chemical with the DuPont barrier fabrics can also be facilitated. To check the most updated permeation data, please visit our website. 4

5. Interpreting permeation data Tychem ® F Barrier to a range of organic and highly concentrated inorganic chemicals Breakthrough time Chemical Name Physical State CAS-No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Example 1 Sulphuric acid (98%) L 7664-93-9 > 480 > 480 > 480 6 < 0.01 0.01 Example 2 Cresol-o L 95-48-7 124 180 206 4 2.7 0.001 Example 3 Thionyl chloride L 7719-09-7 imm imm 15 1 101 0.01 Example 1: Sulphuric acid, CAS 7664-93-9, 98 % * Tychem ® F is exposed to Sulphuric acid, 98 % for a test duration of more than 480 minutes. No breakthrough has taken place at the minimum detection rate of 0.01 μg/(cm²·min), the normalized breakthrough time at 0.1 μg/(cm²·min) and 1.0 μg/(cm²·min). The breakthrough time for these permeation rates are reported with more than 480 minutes. Based on the results for the normalized breakthrough time at 1.0 μg/(cm²·min) the resistance to permeation is classified into class 6 according to EN 14325. The permeation did not reach equilibrium at a measurable level. Therefore the steady state permeation rate is below the minimum detectable permeation rate (0.01 μg/(cm²·min). There is the possibility that Sulphuric acid permeates the barrier, but at a lower rate than 0.01 μg/(cm²·min). Based on the permeation data, Tychem ® F fabric can be considered as offering a chemical barrier to liquid 98%* Sulphuric acid. The selected fabric should then be taken into the next step of the garment selection process as part of the workplace risk assessment. Example 2: o-Cresol, CAS 95-48-7. Tychem ® F is exposed to o-Cresol, CAS 95-48-7 for a test duration of more than 480 minutes. Breakthrough has taken place at the minimum detection rate of 0.01 μg/(cm²·min) after 124 minutes. The normalized breakthrough time at 0.1 μg/(cm²·min) has been reached after 180 minutes and the normalized breakthrough time at 1.0 μg/(cm²·min) after 206 minutes. Based on the results for the normalized breakthrough time at 1.0 μg/(cm²·min) the resistance to permeation is classified into class 4 according to EN 14325. The permeation reached equilibrium at a rate of 2.7 μg/(cm²·min) between 206 and 480 minutes. Based on the permeation data, Tychem ® F fabric shall be considered as offering a limited barrier only to o-Cresol. Tychem ® F fabric may be considered in the next step of the garment selection process as part of the workplace risk assessment, but breakthrough does occur. Careful attention must be paid to the working temperature, exposure time, contaminated suit area, chemical toxicity and working practices. Example 3: Thionyl chloride, CAS 7719-09-7. Based on permeation data Tychem ® F is a limited barrier to Thionyl chloride, CAS 7719-09-7. The minimum detection rate of 0.01 μg/(cm²·min) and the normalized breakthrough time at 0.1 μg/(cm²·min) are reached immediately. The normalized breakthrough time at 1.0 μg/(cm²·min) has been reached after 15 minutes. The steady state permeation rate of 101 mg/(cm²·min) indicates that high quantities will permeate. Based on the permeation data, Tychem ® F fabric shall be considered as an insufficient barrier to Thionyl chloride. For certain tasks, whereby the exposure risk is highly unlikely and the employee is trained to remove the PPE upon eventual exposure, then garments made of Tychem ® F could be considered in the risk assessment, but extreme caution must be applied. If possible, identifying a fabric which offers a higher chemical permeation barrier would be a recommended safer approach. * Warning: presence of vapours must be addressed in the garment risk assessment. 3

15. Permeation data for Tyvek ® Please find below a selection of permeation data for Tyvek ® White 1422A / 1431N. Tyvek ® , extremely tough, tear and abrasion resistant, offers strong barrier against particles and resists low-pressurized water-based liquid chemical splashes. Tyvek ® Classic is the chosen category III protection against solid particles larger than 1 μ m (Type 5), and mist, i.e. low-level liquid aerosols from water-based chemical spray (Type 6). Tyvek ® Classic Plus is a chemical protective clothing category III type 4B, 5 and 6, providing high barrier against many inorganic chemicals in low concentrations and particles larger than 1 micron. With its overtaped seams, this suit is ideal for toxic dry particulate environments or to prevent liquid penetration through seams. Permeation vs. penetration and repellency Permeation is not the same as penetration. Liquid chemical penetration is a physical process whereby a liquid penetrates a fabric by passing through pores or holes in the fabric. The European standard EN ISO 6530 (referred to as the “gutter test”) measures liquid penetration through a fabric and liquid repellency by a fabric. Penetration & repellency tests, such as the gutter test, are typically “short duration tests” of 1 minute. Fabrics may show high repellency and penetration indices to certain chemicals, but when exposed for several minutes will allow the chemical to permeate. Tyvek ® Breakthrough time Chemical Name Physical State CAS No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) Classification according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Glycerol L 56-81-5 450 > 480 > 480 6 0.03 0.01 Hydrochloric acid (16%) L 7647-01-0 30 60 65 3 11.1 0.005 Hydrochloric acid (30%) L 7647-01-0 imm imm imm  10.1 0.01 Hydrogen peroxide (10%) L 7722-84-1 > 480 > 480 > 480 6 <0.01 0.01 Hydrogen peroxide (30%) L 7722-84-1 imm 15   > 0.11 0.04 Mercuric II chloride (sat'd) L 7487-94-7 > 480 > 480 > 480 6 <0.01 0.01 Nitric acid (10%) L 7697-37-2 > 480 > 480 > 480 6 <0.005 0.005 Nitric acid (30%) L 7697-37-2 45 60 60 2 4.6 0.001 Phosphoric acid (50%) L 7664-38-2 > 480 > 480 > 480 6 <0.005 0.005 Potassium chromate (sat'd) L 7789-00-6 > 480 > 480 > 480 6 <0.005 0.005 Potassium hydroxide (40%) L 1310-58-3 60 60 > 480 6 0.7 0.001 Sodium acetate (sat'd) L 127-09-3 > 480 > 480 > 480 6 <0.005 0.005 Sodium hydroxide (40%) L 1310-73-2 > 480 > 480 > 480 6 <0.005 0.005 Sodium hydroxide (50%) L 1310-73-2 10 220 > 480 6 0.85 0.01 Sodium hydroxide (solid) S 1310-73-2 > 480 > 480 > 480 6 <0.01 0.01 Sodium hypochlorite (13% active Chlorine) L 7681-52-9 > 480 > 480 > 480 6 <0.005 0.005 Sodium hypochlorite (sat'd) L 7681-52-9 > 480 > 480 > 480 6 <0.01 0.01 Sulphuric acid (18%) L 7664-93-9 480 480 > 480 6 0.2 0.005 Sulphuric acid (30%) L 7664-93-9 135 160 168 4 9.7 0.005 Sulphuric acid (50%) L 7664-93-9 10 50 75 3 38 0.01 KEY:  = Not tested • S = solid • G = gaseous • L = liquid • imm = Immediate • sat’d = saturated T y V e K ® fab RIC - Permeation Data www.dpp-europe.com

3. INTRODUCTION - Chemical Permeation What is permeation? Permeation is the process by which a potentially hazardous chemical moves through a material on a molecular level. Permeation can be represented by the following simplified diagram (Fig. 1). Fig. 1 - Permeation 1 2 3 ➀ Sorption of molecules of liquid onto the contracted (outside) surface of the fabric. ➁ Diffusion of the sorbed molecules across the fabric. ➂ Desorption of the molecules from the opposite (inside) surface of the fabric. Measuring permeation The resistance of a protective clothing fabric to permeation by a chemical can be determined by testing a fabric against a challenge chemical according to EN ISO 6529 (method A and B), ASTM F-739 or EN 374-3. For these methods a two-chambered test cell is used. The test specimen is positioned between the two sections of the cell. Fig. 2 - Permeation test cell Fill level Test specimen To analyzer Flushing of chamber or discrete sampling Reservoir for challenge chemical On the challenge side of the test cell the outside fabric surface is exposed continuously to the challenge chemical. The sampling side of the test cell is analytically monitored. The normal test duration is 480 minutes. An explanation of the parameters which describe the permeation- performance of a barrier is given below. Permeation rate A permeation rate indicates the mass of the chemical in micrograms, which can be transferred through one square centimetre of the fabric in one minute. The unit is μg/(cm²·min). Minimum detectable permeation rate (MDPR) The lowest rate of permeation that is measurable is called the minimum detectable permeation rate (MDPR). The MDPR can vary depending on the sensitivity of the analytical device for the given substance. Minimum detectable permeation rates can be as low as 0.001 μg/(cm²·min) in certain cases. Breakthrough detection time (Actual breakthrough time) The breakthrough detection time or actual breakthrough time is the time elapsed between initial contact of the chemical with the outside surface of the protective clothing fabric and its detection at the inside surface. Actual breakthrough has taken place when the minimum detectable permeation rate has been reached. A breakthrough detection time of more than 480 minutes indicates that the challenge chemical did not reach the minimum detectable permeation rate during the test time of 480 minutes. 1

4. There is the possibility that a breakthrough at a lower permeation rate than the minimum detectable permeation rate has in fact taken place. To be able to interpret the actual breakthrough time the minimum detectable permeation rate should be indicated. Normalized permeation rate To be able to compare permeation data, the breakthrough time is reported at defined permeation rates. According to ASTM F-739 the normalized breakthrough detection time is reported at a permeation rate of 0.1 μg/(cm²·min). According to EN 374-3 the normalized breakthrough detection time is reported at a rate of 1.0 μg/(cm²·min). The test method EN ISO 6529 provides the choice of two normalized permeation rates for reporting the results: 0.1 μg/(cm²·min) or 1.0 μg/(cm²·min) . Fig. 3 - “Typical” permeation cell results 480 Min Actual ASTM F 739 EN ISO 6529 EN 369/374-3 EN ISO 6529 SSPR MDPR Permeation rate μg/(cm 2 · min) 0.1 1.0 T ime (min) Steady state permeation rate (SSPR) The constant permeation rate that occurs after reaching equilibrium is called the steady state permeation rate. Performance classes according to EN 14325* Chemical protective clothing is classified into six classes based on a normalized permeation rate of 1.0 μg/(cm²·min). Table 1 Normalized breakthrough time at a permeation rate of 1.0 μg/(cm²·min) in minutes EN Class > 10 1 > 30 2 > 60 3 > 120 4 > 240 5 > 480 6 * EN 14325: Protective clothing against chemicals - test methods and performance classification of chemical protective clothing Permeation data table The permeation data table for the Tychem ® C, Tychem ® C2, Tychem ® F and Tychem ® F2 fabrics is organized alphabetically. For each chemical the CAS-number and the physical state is listed. CAS-number is a unique numerical identifier created and assigned to a chemical substance by the Chemical Abstract Society. The physical state describes the state in which the chemical has been tested. Unless otherwise stated, the tests were performed with pure chemicals under laboratory conditions at room temperature and environmental pressure. The table shows the following data for each chemical: • Actual breakthrough time in minutes • Normalized breakthrough time at 0.1 μg/(cm²·min) in minutes • Normalized breakthrough time at 1.0 μg/(cm²·min) in minutes • Performance class according to EN 14325 • Steady state permeation rate in μg/(cm²·min) • Minimum detectable permeation rate in μg/(cm²·min). 2

14. Tychem ® C Barrier to a range of concentrated inorganic chemicals Tychem ® F Barrier to a range of organic and highly concentrated inorganic chemicals Breakthrough time Breakthrough time Chemical Name Physical State CAS No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class accor - ding to EN 14325 Steady State Permeation Rate Minimum Detection Rate Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Toluidine o- L 95-53-4       > 480 > 480 > 480 6 < 0.001 0.001 Trichloroacetic acid L 76-03-9       > 480 > 480 > 480 6 < 0.1 0.1 Trichloroacetone 1,1,3- L 921-03-9         > 480 6  0.05 Trichlorobenzene 1,2,4- L 120-82-1       > 480 > 480 > 480 6 < 0.001 0.001 Trichloroethane 1,1,2- L 79-00-5       120 164 202 4 9.1 0.01 Trichloroethanol 2,2,2- L 115-20-8       > 480 > 480 > 480 6 < 0.02 0.02 Trichloroethylene L 79-01-6       > 480 > 480 > 480 6 < 0.01 0.01 Trichlorophenylsilane L 98-13-5       > 480 > 480 > 480 6 < 0.0001 0.0001 Trifluoroacetic acid L 76-05-1       > 480 > 480 > 480 6 < 0.01 0.01 Trifluoromethansulfonic acid L 1493-13-6       > 480 > 480 > 480 6 < 0.01 0.01 Trimethyl quinone (at 30°C) L 935-92-2         > 480 6  0.05 Vinyl acetate L 108-05-4       4 8   0.81 0.001 Vinyl chloride G 75-01-4       imm > 480 > 480 6 0.02 0.001 Vinylidene chloride L 75-35-4       > 480 > 480 > 480 6 < 0.02 0.02 Xylene (mixed isomers) L 1330-20-7       8 40 > 480 6 0.16 0.001 KEY:  = Not tested • S = solid • G = gaseous • L = liquid • imm = Immediate • sat’d = saturated Ty C hem ® C / C 2 a ND Ty C hem ® f/f2 fab RIC s - Permeation Data www.dpp-europe.com 12

10. Tychem ® C Barrier to a range of concentrated inorganic chemicals Tychem ® F Barrier to a range of organic and highly concentrated inorganic chemicals Breakthrough time Breakthrough time Chemical Name Physical State CAS No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class accor - ding to EN 14325 Steady State Permeation Rate Minimum Detection Rate Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Gasoline, unleaded L Mixture       > 480 > 480 > 480 6 < 0.001 0.001 Glycerol L 56-81-5             Hexamethylene diisocyanate L 822-06-0       > 480 > 480 > 480 6 < 0.07 0.07 Hexamethylenediamine 1,6 (45° C) L 124-09-4       423 > 480 > 480 6 0.003 0.0001 Hexane n- L 110-54-3       > 480 > 480 > 480 6 < 0.05 0.05 Hexone L 108-10-1       > 480 > 480 > 480 6 < 0.05 0.05 Hydrazine L 302-01-2       269 283 352 5 2.3 0.001 Hydrochloric acid (16%) L 7647-01-0             Hydrochloric acid (30%) L 7647-01-0             Hydrochloric acid (32%) L 7647-01-0 > 480 > 480 > 480 6 < 0.001 0.001       Hydrochloric acid (37%) L 7647-01-0 60 265 > 480 6 0.46 0.001 > 480 > 480 > 480 6 < 0.1 0.1 Hydrofluoric acid (48%) L 7664-39-3 > 480 > 480 > 480 6 < 0.05 0.05 > 480 > 480 > 480 6 < 0.1 0.1 Hydrofluoric acid (70%) L 7664-39-3 imm imm 15 1 15.3 0.1 imm 14 140 4 1.2 0.1 Hydrogen bromide (gas) G 10035-10-6       > 480 > 480 > 480 6 < 0.0001 0.0001 Hydrogen chloride (gas) G 7647-01-0       > 480 > 480 > 480 6 < 0.1 0.1 Hydrogen fluoride (gas) G 7664-39-3         48 2  0.01 Hydrogen fluoride (liquid, at 18° C) L 7664-39-3       20 28 60 2 2.2 0.01 Hydrogen peroxide (10%) L 7722-84-1             Hydrogen peroxide (30%) L 7722-84-1             Hydrogen peroxide (50%) L 7722-84-1 > 480 > 480 > 480 6 < 0.01 0.01 > 480 > 480 > 480 6 < 0.01 0.01 Hydroiodic acid (55%) L 10034-85-2       > 480 > 480 > 480 6 < 0.01 0.01 Hypophosphorus acid (50%) L 6303-21-5       > 480 > 480 > 480 6 < 0.01 0.01 Isophthaloyldichloride (45°C) L 99-63-8       > 480 > 480 > 480 6 < 0.0001 0.0001 Isopropanol L 67-63-0       > 480 > 480 > 480 6 < 0.05 0.05 Isopropyl amine L 75-31-0       > 480 > 480 > 480 6 < 0.05 0.05 Kerosene L 8008-20-6       > 480 > 480 > 480 6 < 0.001 0.001 Limonene d- L 5989-27-5       > 480 > 480 > 480 6 < 0.02 0.02 Lupranate ® (MDI) L 9016-87-9       > 480 > 480 > 480 6 < 0.65 0.65 Mercuric I chloride (sat'd) L 10112-91-1       > 480 > 480 > 480 6 < 0.1 0.1 Mercuric II chloride (sat'd) L 7487-94-7 > 480 > 480 > 480 6 < 0.01 0.01       KEY:  = Not tested • S = solid • G = gaseous • L = liquid • imm = Immediate • sat’d = saturated Ty C hem ® C / C 2 a ND Ty C hem ® f/f2 fab RIC s - Permeation Data www.dpp-europe.com 8

9. Tychem ® C Barrier to a range of concentrated inorganic chemicals Tychem ® F Barrier to a range of organic and highly concentrated inorganic chemicals Breakthrough time Breakthrough time Chemical Name Physical State CAS No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class accor - ding to EN 14325 Steady State Permeation Rate Minimum Detection Rate Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Diethyl sulfate L 64-67-5       > 480 > 480 > 480 6 < 0.01 0.01 Diethylenetriamine L 111-40-0       > 480 > 480 > 480 6 < 0.05 0.05 Dimethyl acetamide N,N- L 127-19-5       > 480 > 480 > 480 6 < 0.05 0.05 Dimethyl amine G 124-40-3       > 480 > 480 > 480 6 < 0.05 0.05 Dimethyl aniline N,N- L 121-69-7       > 480 > 480 > 480 6 < 0.1 0.1 Dimethyl dichlorosilane L 75-78-5       > 480 > 480 > 480 6 < 0.0001 0.0001 Dimethyl formamide N,N- L 68-12-2       > 480 > 480 > 480 6 < 0.001 0.001 Dimethyl nitrosamine L 62-75-9       > 480 > 480 > 480 6 < 0.001 0.001 Dimethyl sulfate L 77-78-1       > 480 > 480 > 480 6 < 0.09 0.09 Dimethyl sulfide L 75-18-3       83 271 452 5 1.21 0.02 Dimethyl sulfoxide L 67-68-5       20 28 114 3 1.9 0.001 Dioxane 1,4- L 123-91-1       > 480 > 480 > 480 6 < 0.05 0.05 Epichlorohydrin L 106-89-8       204 372 > 480 6 0.51 0.001 Ethanol L 64-17-5       > 480 > 480 > 480 6 < 0.02 0.02 Ethanolamine L 141-43-5       > 480 > 480 > 480 6 < 0.05 0.05 Ethoxy ethylacetat L 111-15-9       > 480 > 480 > 480 6 < 0.01 0.01 Ethyl acetate L 141-78-6       > 480 > 480 > 480 6 < 0.001 0.001 Ethyl ether L 60-29-7       > 480 > 480 > 480 6 < 0.01 0.01 Ethylene diamine L 107-15-3       > 480 > 480 > 480 6 < 0.001 0.001 Ethylene dibromide L 106-93-4       84 144 > 480 6 0.52 0.001 Ethylene dichloride L 107-06-2       90 92 98 3 7.2 0.02 Ethylene glycol L 107-21-1       > 480 > 480 > 480 6 < 0.001 0.001 Ethylene oxide (gas) G 75-21-8       44 64 64 3 1.4 0.01 Fluorobenzene L 462-06-6       > 480 > 480 > 480 6 < 0.02 0.02 Fluorosilicic acid L 16961-83-4       > 480 > 480 > 480 6 < 0.0001 0.0001 Formaldehyde (10%) L 50-00-0 > 480 > 480 > 480 6 < 0.1 0.1       Formaldehyde (37%) L 50-00-0 imm imm > 480 6 0.31 0.1 > 480 > 480 > 480 6 < 0.001 0.001 Formic acid (96%) L 64-18-6       172 260 > 480 6 0.24 0.001 Furfural L 98-01-1       424 > 480 > 480 6 0.01 0.001 Gasoline, leaded L Mixture       imm imm > 480 6 0.32 0.001 KEY:  = Not tested • S = solid • G = gaseous • L = liquid • imm = Immediate • sat’d = saturated Ty C hem ® C / C 2 a ND Ty C hem ® f/f2 fab RIC s - Permeation Data www.dpp-europe.com 7

11. Tychem ® C Barrier to a range of concentrated inorganic chemicals Tychem ® F Barrier to a range of organic and highly concentrated inorganic chemicals Breakthrough time Breakthrough time Chemical Name Physical State CAS No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class accor - ding to EN 14325 Steady State Permeation Rate Minimum Detection Rate Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Mercury L 7439-97-6       > 480 > 480 > 480 6 < 0.04 0.04 Methacrylic acid L 79-41-4       > 480 > 480 > 480 6 < 0.0001 0.0001 Methanesulfonyl chloride L 124-63-0       > 480 > 480 > 480 6 < 0.02 0.02 Methanol L 67-56-1       56 117 > 480 6 0.14 0.02 Methoxy ethanol 2- L 109-86-4       168 > 480 > 480 6 0.002 0.001 Methoxy ethylacetat 2- L 110-49-6       > 480 > 480 > 480 6 < 0.05 0.05 Methyl acrylate L 96-33-3       > 480 > 480 > 480 6 < 0.02 0.02 Methyl amine G 74-89-5       > 480 > 480 > 480 6 < 0.05 0.05 Methyl chloride G 74-87-3       68 > 480 > 480 6 0.02 0.002 Methyl chloroformate L 79-22-1       99 204 > 480 6 0.17 0.05 Methyl ethyl ketone L 78-93-3       imm 40 > 480 6 0.36 0.001 Methyl ethyl ketoxime L 96-29-7       > 480 > 480 > 480 6 < 0.02 0.02 Methyl formamide N- L 123-39-7       > 480 > 480 > 480 6 < 0.05 0.05 Methyl hydrazine L 60-34-4       83 183 280 5 1.78 0.01 Methyl isocyanate L 624-83-9       imm 4 > 480 6 0.42 0.001 Methyl mercaptan G 74-93-1       > 480 > 480 > 480 6 < 0.05 0.05 Methyl methacrylate L 80-62-6       4 8 180 4 1.4 0.001 Methyl pentanedinitrile 2- L 4553-62-2       > 480 > 480 > 480 6 < 0.1 0.1 Methyl propanol 2- L 75-65-0       10 37 > 480 6 0.26 0.02 Methyl pyrrolidone N- L 872-50-4       > 480 > 480 > 480 6 < 0.01 0.01 Methyl tert-butyl ether L 1634-04-4       > 480 > 480 > 480 6 < 0.02 0.02 Methyl trichlorosilane L 75-79-6       > 480 > 480 > 480 6 < 0.0001 0.0001 Methyl vinyl ketone L 78-94-4         > 480 6 < 0.05 0.05 Methylene biscyclohexylamine 4,4- L 1761-71-3       > 480 > 480 > 480 6 < 0.01 0.01 Methylene bromide L 74-95-3       imm 5 20 1 111 0.05 Naphthalene (sat'd in toluene) L 91-20-3       > 480 > 480 > 480 6 < 0.001 0.001 Nicotine L 54-11-5       > 480 > 480 > 480 6 < 0.1 0.1 Nitric acid (10%) L 7697-37-2             Nitric acid (30%) L 7697-37-2             Nitric acid (70%) L 7697-37-2 220 > 480 > 480 6 0.00021 0.0001 > 480 > 480 > 480 6 < 0.0001 0.0001 KEY:  = Not tested • S = solid • G = gaseous • L = liquid • imm = Immediate • sat’d = saturated Ty C hem ® C / C 2 a ND Ty C hem ® f/f2 fab RIC s - Permeation Data www.dpp-europe.com 9

13. Tychem ® C Barrier to a range of concentrated inorganic chemicals Tychem ® F Barrier to a range of organic and highly concentrated inorganic chemicals Breakthrough time Breakthrough time Chemical Name Physical State CAS No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class accor - ding to EN 14325 Steady State Permeation Rate Minimum Detection Rate Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Silicon tetrachloride L 10026-04-7       > 480 > 480 > 480 6 < 0.0001 0.0001 Sodium acetate (sat'd) L 127-09-3             Sodium cyanide (45%) L 143-33-9       > 480 > 480 > 480 6 < 0.1 0.1 Sodium cyanide (sat'd) L 143-33-9             Sodium fluoride (sat'd) L 7681-49-4             Sodium hydroxide (40%) L 1310-73-2             Sodium hydroxide (42%) L 1310-73-2 > 480 > 480 > 480 6 < 0.01 0.01       Sodium hydroxide (50%) L 1310-73-2 > 480 > 480 > 480 6 < 0.005 0.005 > 480 > 480 > 480 6 < 0.1 0.1 Sodium hydroxide (solid) S 1310-73-2             Sodium hypochlorite (13% active Chlorine) L 7681-52-9 > 480 > 480 > 480 6 < 0.01 0.01       Sodium hypochlorite (30%) L 7681-52-9       > 480 > 480 > 480 6 < 0.1 0.1 Sodium hypochlorite (sat'd) L 7681-52-9             Styrene L 100-42-5       140 > 480 > 480 6 0.055 0.001 Sulphur dioxide G 7446-09-5       24 24 24 1 2.6 0.34 Sulphuric acid (18%) L 7664-93-9             Sulphuric acid (30%) L 7664-93-9             Sulphuric acid (50%) L 7664-93-9 > 480 > 480 > 480 6 < 0.01 0.01       Sulphuric acid (98%) L 7664-93-9 > 480 > 480 > 480 6 < 0.005 0.005   > 480 6  0.01 Sulphuryl chloride L 7791-25-5       > 480 > 480 > 480 6 < 0.01 0.01 Tetrachloro-bisphenol-A 2,2',6,6'- S 79-95-8       > 480 > 480 > 480 6 < 0.1 0.1 Tetrachloroethylene 1,1,2,2- L 127-18-4       13 > 480 > 480 6 0.022 0.001 Tetrahydrofuran L 109-99-9       40 444 > 480 6 0.14 0.001 Thioglycolic acid L 68-11-1       > 480 > 480 > 480 6 < 0.0001 0.0001 Thionyl chloride L 7719-09-7       imm imm 15 1 101 0.01 Tin chloride, mono-n-butyl L 1118-46-3       > 480 > 480 > 480 6 < 0.0001 0.0001 Tin chloride, tri-n-butyl L 1461-22-9         > 480 6  0.2 Titanium tetrachloride L 7550-45-0       > 480 > 480 > 480 6 < 0.0001 0.0001 Toluene L 108-88-3       > 480 > 480 > 480 6 < 0.05 0.05 Toluene-2,4-diisocyanate (80%) L 584-84-9       > 480 > 480 > 480 6 < 0.001 0.001 KEY:  = Not tested • S = solid • G = gaseous • L = liquid • imm = Immediate • sat’d = saturated Ty C hem ® C / C 2 a ND Ty C hem ® f/f2 fab RIC s - Permeation Data www.dpp-europe.com 11

7. Ty C hem ® C / C 2 a ND Ty C hem ® f/f2 fab RIC s - Permeation Data Tychem ® C Barrier to a range of concentrated inorganic chemicals Tychem ® F Barrier to a range of organic and highly concentrated inorganic chemicals Breakthrough time Breakthrough time Chemical Name Physical State CAS No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class accor - ding to EN 14325 Steady State Permeation Rate Minimum Detection Rate Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Acetaldehyde L 75-07-0       imm imm 13 1 2 0.06 Acetic acid (glacial) L 64-19-7       > 480 > 480 > 480 6 < 0.02 0.02 Acetone L 67-64-1       > 480 > 480 > 480 6 < 0.01 0.01 Acetone cyanohydrin L 75-86-5       > 480 > 480 > 480 6 < 0.05 0.05 Acetonitrile L 75-05-8       > 480 > 480 > 480 6 < 0.1 0.1 Acetyl chloride L 75-36-5       155 > 480 > 480 6 0.0014 0.0001 Acrolein L 107-02-8       imm 48 > 480 6 0.41 0.001 Acryl amide (50%) L 79-06-1       > 480 > 480 > 480 6 < 0.1 0.1 Acrylic acid L 79-10-7       84 > 480 > 480 6 0.002 0.001 Acrylonitrile L 107-13-1       imm 8 > 480 6 0.57 0.01 Adiponitrile L 111-69-3       > 480 > 480 > 480 6 < 0.05 0.05 Allyl alcohol L 107-18-6       imm > 480 > 480 6 0.04 0.001 Allyl chloride L 107-05-1         > 480 6  0.05 Ammonia (gas) G 7664-41-7       55 79 > 480 6 0.76 0.001 Amyl acetate n- L 628-63-7       12 136 > 480 6 0.11 0.001 Aniline L 62-53-3       > 480 > 480 > 480 6 < 0.03 0.03 Aniline, 4-trifluoromethoxy- L 461-82-5       > 480 > 480 > 480 6 < 0.05 0.05 Anthracene (sat'd. in toluene) L 120-12-7       > 480 > 480 > 480 6 < 0.02 0.02 Antimony pentachloride L 7647-18-9       15 15 15 1 > 10 0.1 Arsenic (III) chloride L 7784-34-1       22 32 54 2 334 0.01 Benzene L 71-43-2       > 480 > 480 > 480 6 < 0.05 0.05 Benzene sulfonyl chloride L 98-09-9       > 480 > 480 > 480 6 < 0.02 0.02 Benzonitrile L 100-47-0       > 480 > 480 > 480 6 < 0.001 0.001 Benzoyl chloride L 98-88-4       > 480 > 480 > 480 6 < 0.05 0.05 Benzyl alcohol L 100-51-6       > 480 > 480 > 480 6 < 0.04 0.04 Benzyl chloride L 100-44-7       > 480 > 480 > 480 6 < 0.08 0.08 Benzyl cyanide L 140-29-4       > 390 > 390 > 390 5 < 0.01 0.01 Bisphenol-A Diglycidyl Ether L 1675-54-3       > 480 > 480 > 480 6 < 0.01 0.01 Boron trifluoride dimethyletherate L 353-42-4       > 480 > 480 > 480 6 < 0.01 0.01 Bromine (liquid) L 7726-95-6       imm imm  - 105 0.001 KEY:  = Not tested • S = solid • G = gaseous • L = liquid • imm = Immediate • sat’d = saturated www.dpp-europe.com 5

8. Tychem ® C Barrier to a range of concentrated inorganic chemicals Tychem ® F Barrier to a range of organic and highly concentrated inorganic chemicals Breakthrough time Breakthrough time Chemical Name Physical State CAS No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class accor - ding to EN 14325 Steady State Permeation Rate Minimum Detection Rate Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Bromofluorobenzene 4- L 460-00-4       > 480 > 480 > 480 6 < 0.02 0.02 Butadiene 1,3- (gas) G 106-99-0       4 > 480 > 480 6 0.005 0.001 Butanol n- L 71-36-3       > 480 > 480 > 480 6 < 0.05 0.05 Butyl ether n- L 142-96-1       4 192 > 480 6 0.13 0.001 Carbon disulfide L 75-15-0       32 > 480 > 480 6 0.05 0.001 Carbon tetrachloride L 56-23-5       4 4 > 480 6 0.57 0.001 Chlorine (gas) G 7782-50-5       > 480 > 480    0.2 Chloro-1,3-butadiene 2- (50% in Butanol) L 126-99-8       > 480 > 480 > 480 6 < 0.02 0.02 Chloroacetic acid (68%) L 79-11-8       > 480 > 480    0.1 Chloroacetone L 78-95-5       > 480 > 480 > 480 6 < 0.01 0.01 Chloroacrylonitrile 2- L 920-37-6       > 480 > 480 > 480 6 < 0.01 0.01 Chlorobenzene L 108-90-7       > 480 > 480 > 480 6 < 0.05 0.05 Chloroethanol 2- L 107-07-3       > 480 > 480    0.001 Chloroform L 67-66-3       4 8 8 - 10.6 0.001 Chloromethyl methyl ether L 107-30-2       imm 8 > 480 6 0.75 0.001 Chlorosulfonic acid L 7790-94-5       423 > 480 > 480 6 0.0003 0.0001 Chlorotoluene o- L 95-49-8       > 480 > 480 > 480 6 < 0.02 0.02 Chlortrinitromethane L 76-06-2       > 480 > 480 > 480 6 < 0.05 0.05 Chromic acid 80% (H2SO4 x CrO3) L  > 480 > 480 > 480 6 < 0.001 0.001       Creosote L 8001-58-9       > 480 > 480 > 480 6 < 0.02 0.02 Cresol-o L 95-48-7       124 180 206 4 2.7 0.001 Cumene (Isopropylbenzene) L 98-82-8       > 480 > 480 > 480 6 < 0.05 0.05 Cyclohexane L 110-82-7       8 > 480 > 480 6 0.04 0.001 Cyclohexanone L 108-94-1       > 480 > 480 > 480 6 < 0.05 0.05 Dichloroacetyl chloride L 79-36-7       160 160 180 4 7.41 0.01 Dichloroethylether L 111-44-4       > 480 > 480 > 480 6 < 0.02 0.02 Dichloromethane L 75-09-2       imm imm imm - 23.7 0.03 Dichloropropene 2,3- L 78-88-6       4 4 54 2 2.4 0.001 Diesel fuel L 68334-30-5       8 > 480 > 480 6 0.02 0.001 Diethyl amine L 109-89-7       > 480 > 480 > 480 6 < 0.001 0.001 KEY:  = Not tested • S = solid • G = gaseous • L = liquid • imm = Immediate • sat’d = saturated Ty C hem ® C / C 2 a ND Ty C hem ® f/f2 fab RIC s - Permeation Data www.dpp-europe.com 6

12. Tychem ® C Barrier to a range of concentrated inorganic chemicals Tychem ® F Barrier to a range of organic and highly concentrated inorganic chemicals Breakthrough time Breakthrough time Chemical Name Physical State CAS No. Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class accor - ding to EN 14325 Steady State Permeation Rate Minimum Detection Rate Actual Normalized at 0.1 μg/(cm² . min) Normalized at 1.0 μg/(cm² . min) EU-Class according to EN 14325 Steady State Permeation Rate Minimum Detection Rate minutes minutes minutes μg/(cm² . min) μg/(cm² . min) minutes minutes minutes μg/(cm² . min) μg/(cm² . min) Nitric acid (90%, fuming) L 52583-42-3       15 15 15 1 > 50 0.1 Nitrobenzene L 98-95-3       > 480 > 480 > 480 6 < 0.001 0.001 Nitrochlorobenzene o- (35-40°C) L 88-73-3       > 480 > 480 > 480 6 < 0.1 0.1 Nitrogen dioxide G 10102-44-0       < 15 <15   > 0.2 0.01 Nitromethane L 75-52-5       157 233   0.97 0.001 Nitropropane 2- L 79-46-9       > 480 > 480 > 480 6 < 0.05 0.05 Oleum (30% free SO3) L 8014-95-7 18 82 105 3  0.005       Oleum (40% free SO3) L 8014-95-7       130 455 > 480 6 0.32 0.0001 PCB in tranformer oil L na       324 > 480 > 480 6 0.032 0.01 Pentanol 1- L 71-41-0       > 480 > 480 > 480 6 < 0.1 0.1 Pentene nitrile 2- L 13284-42-9       > 480 > 480 > 480 6 < 0.02 0.02 Perchloric acid (70%) L 7601-90-3 > 480 > 480 > 480 6 < 0.0001 0.0001       Phenol (85%) L 108-95-2       182 238 276 5 4 0.001 Phosgene G 75-44-5       > 480 > 480 > 480 6 < 0.02 0.02 Phosphine G 7803-51-2       imm imm   > 0.11 0.003 Phosphoric acid (50%) L 7664-38-2             Phosphoric acid (85%) L 7664-38-2 > 480 > 480 > 480 6 < 0.01 0.01 > 480 > 480 > 480 6  0.1 Phosphorus oxychloride L 10025-87-3        > 480 > 480 6 < 0.01 0.01 Phosphorus trichloride L 7719-12-2       200 > 480 > 480 6 0.0055 0.001 Picoline 2- L 109-06-8       > 480 > 480 > 480 6 < 0.05 0.05 Picoline 3- L 108-99-6       > 480 > 480 > 480 6 < 0.05 0.05 Potassium chromate (sat'd) L 7789-00-6 > 480 > 480 > 480 6 < 0.01 0.01 > 480 > 480 > 480 6 < 0.1 0.1 Potassium cyanide (sat'd) L 151-50-8             Potassium hydroxide (40%) L 1310-58-3             Propylamine n- L 107-10-8       7 16 > 480 6 0.52 0.05 Propylene oxide 1,2- L 75-56-9       4 12  6 0.96 0.001 Pryridine, 2-fluoro-6-(trifluoromethyl) L 94239-04-0       > 480 > 480 > 480 6 < 0.02 0.02 Pyridine L 110-86-1       > 480 > 480 > 480 6 < 0.05 0.05 Pyrrolidine L 123-75-1       40 45 145 4 4.7 0.05 Silane G 7803-62-5       > 480 > 480 > 480 6 < 0.1 0.1 KEY:  = Not tested • S = solid • G = gaseous • L = liquid • imm = Immediate • sat’d = saturated Ty C hem ® C / C 2 a ND Ty C hem ® f/f2 fab RIC s - Permeation Data www.dpp-europe.com 10

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