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2004 ERG (Emergency Response Guidebook)

This is an online version of the 2004 ERG (Emergency Response Guidebook) which is produced by the USDOT for first responders during the initial phase of a Dangerous goods/Hazardous Materials incident. Have you ever wondered what those four digit numbers on the placards on the side of trucks and rail cars mean? Our online 2004 ERG will give you your answer.

Isobutane ==> Isooctenes

Name of MaterialGuideUN#ISO
Isobutane1151075
Isobutane1151969
Isobutane mixture1151075
Isobutane mixture1151969
Isobutanol1291212
Isobutyl acetate1291213
Isobutyl acrylate130P2527
Isobutyl acrylate, inhibited130P2527
Isobutyl acrylate, stabilized130P2527
Isobutyl alcohol1291212
Isobutyl aldehyde1302045
Isobutyl chloroformate1552742Yes
Isobutyl formate1292393
Isobutyl isobutyrate1302528
Isobutyl isocyanate1552486Yes
Isobutyl methacrylate130P2283
Isobutyl methacrylate, inhibited130P2283
Isobutyl methacrylate, stabilized130P2283
Isobutyl propionate1292394
Isobutylamine1321214
Isobutylamine1321214
Isobutylene1151055
Isobutylene1151075
Isobutyraldehyde1302045
Isobutyric acid1322529
Isobutyric anhydride1322530
Isobutyronitrile1312284
Isobutyryl chloride1322395
Isocyanate solution, flammable, poisonous, n.o.s.1552478
Isocyanate solution, flammable, toxic, n.o.s.1552478
Isocyanate solution, poisonous, flammable, n.o.s.1553080
Isocyanate solution, poisonous, n.o.s.1552206
Isocyanate solution, toxic, flammable, n.o.s.1553080
Isocyanate solution, toxic, n.o.s.1552206
Isocyanate solutions, n.o.s.1552206
Isocyanate solutions, n.o.s.1552478
Isocyanate solutions, n.o.s.1553080
Isocyanates, flammable, poisonous, n.o.s.1552478
Isocyanates, flammable, toxic, n.o.s.1552478
Isocyanates, n.o.s.1552206
Isocyanates, n.o.s.1552478
Isocyanates, n.o.s.1553080
Isocyanates, poisonous, flammable, n.o.s.1553080
Isocyanates, poisonous, n.o.s.1552206
Isocyanates, toxic, flammable, n.o.s.1553080
Isocyanates, toxic, n.o.s.1552206
Isocyanatobenzotrifluorides1562285
Isoheptenes1282287
Isohexenes1282288
Isooctane1281262
Isooctenes1281216

Data Source for our online 2004 ERG

This information was compiled from the 2004 Emergency Response Guidebook (2004 ERG) which is produced by the U.S. Department of Transportation.

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To ensure regulatory compliance when transporting hazardous materials or dangerous goods, one must receive proper training and certification from a qualified instructor and refer to the current year's Code of Federal Regulations Title 49 (49CFR) or your country's shipping regulations. In matters regarding workplace safety, refer to current OSHA regulations (29CFR) and NIOSH guidelines or your own country's health and safety regulations. No one should ever enter into a hazardous environment without proper training from qualified instructors.

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