81!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 81!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!! 2 05 (HYDROGEN GAS) / (HYDROGEN GAS) HYDROGEN HYDROGEN COMPRESSED MOLECULAR HYDROGEN CAS No. 1333-74-0 100 2.1( ) 1. 2. 3. 4. 5. 1. 2. 1. 2. 3. 4. 81!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 81!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!! 3 05 1. 2. 3. 1. 2. 3. 4. 1. 1. 2. 3. 4. 5. 6. 1. 2. 3. 40 4. 5. 6. 7. 8. 9. 10. 11. 1. 4000ppm( 10%) 2. 3. 4. BEIs TWA STEL CEILING 81!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 81!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!! 4 05 4 1. 2. 3. 4. pH / -252.8 573.8 4.0 ~ 75 / mmHg 0.0695 / 1.8 (V/V) 1. ( ) 2. 3. 4. 1. ( ) 2. 3. 4. 1. 2. 18% 4/ 12-16% 10-14% 6-10% 6% LD50( ) - LC50( ) - 81!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 81!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !! !!!!!!!!!!!!! 5 05 1. ( 18%) / 1. 1.DOT 49 CFR 2.1 2.IATA/ICAO 2.1 3.IMDG 2.1 1049 1. 84 2. 3. 1.CHEMINFO CCINFO 99-2 2.RTECS TOMES PLUS Vol.41 1999 3.HSDB TOMES PLUS Vol.41 1999 / 89.3.31 鈥? 鈥? 鈥?/鈥?