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CHEMICAL RESISTANCE CHART

ASTM Breakthrough Time and CPC Rating Page #1
ASTM F739 -91 Normalized Breakthrough in Minutes and CPC Rating for Best Gloves
  

Explanation of Ratings
Breakthrough detection times(BDT) are given in minutes. CPC index rating are based on the system of Forsberg which relies on both breakthrough times and permeation rates to establish a rating system for chemical protective clothing. The ratings range from 0 to 5 with 0 being the best and 5 the worst.

Chemical Protective Clothing Performance
Index Rating Summary (CPC)
0  Safest Selection for Unlimited Exposure. No Breakthrough.
1  Next Best Selection for Unlimited Exposure.
2  Sometimes Satisfactory. Good for Limited Exposure.
3  Poor Choice. Not for Heavy Exposure.
4  Very Poor. For Splashes Only.
5  Not Recommended
  
Chemical by Class Neoprene Nitrile Rubber PVC Butyl Viton
  BDT CPC BDT CPC BDT CPC BDT CPC BDT CPC BDT CPC
Aliphatic Solvents
1. Cyclohexane		 21 2 9 0 55 5 13 3 ND 4 NR 0
2. Gasoline (Unleaded) 46 3 46 0 NR 5 22 3 NR 5 ND 0
3. Heptane ND 0 ND 0 24 3 39 4 23 4 ND 0
4. Hexane 173 2 234 0 21 4 29 3 13 5 ND 0
5. Isooctane ND 0 ND 0 57 3 114 3 56 4 ND 0
6. Kerosene ND 0 ND 0 NR 5 ND 0 94 4 ND 0
7. Petroleum Ethers 99 2 ND 0 5 5 19 4 15 4 ND 0
Acids, Organic
8. Acetic 84%		 ND 0 240 5 ND 0 300 2 ND 0 ND 0
9. Formic 90% ND 0 75 0 ND 0 ND 0 ND 0 120 0
Acids, Mineral
10. Battery 47%		 ND 0 ND 0 ND 0 ND 0 ND 0 ND 0
11. Hydrochloric 37% ND 0 ND 0 ND 0 ND 0 ND 0 ND 0
12. Hydrofluoric 48% ND 0 60 3 45 3 110 2 ND 0 185 1
13. Muriatic 10% ND 0 ND 0 ND 0 ND 4 ND 0 ND 0
14. Nitric 70% ND 0 NR 5 ND 0 240 5 ND 0 ND 0
15. Sulfuric 97% ND 0 180 3 ND 0 210 5 ND 0 ND 0
Alcohols
16. Amyl		 ND 0 ND 0 ND 0 116 2 ND 0 ND 0
17. Butyl ND 0 ND 0 ND 0 155 2 ND 0 ND 0
18. Cresois ND 0 NR 5 371 2 ND 0 ND 0 ND 0
19. Ethyl ND 0 255 4 ND 0 66 2 ND 0 ND 0
20. Methyl 226 1 28 3 82 2 39 4 ND 0 ND 0
21. Isobutyl ND 0 ND 0 ND 0 ND 0 ND 0 ND 0
Aldehydes
22. Acetaldehyde		 21 3 NR 5 55 3 13 5 ND 0 NR 5
23. Benzaldehyde 93 3 NR 5 81 3 NR 5 ND 0 ND 0
24. Formaldehyde ND 0 ND 0 ND 0 ND 0 ND 0 ND 0
25. Furfural 165 2 NR 5 ND 0 85 3 ND 0 298 3
Alkalis
26. Ammonium Hydroxide		 ND 0 240 3 120 3 60 4 ND 0 ND 0
27. Potassium Hydroxide ND 0 ND 0 ND 0 ND 0 ND 0 ND 0
28. Sodium Hydroxide ND 0 ND 0 ND 0 ND 0 ND 0 ND 0

Last modified 21-March-2002