API 1604 pdf download

API 1604 pdf download Closure of Underground Petroleum Storage Tanks 4.2 Special Precautions During UST removal or closure in place, workers may be exposed to petroleum hydrocarbon liquids, vapors, or wastes. The precautions in 4.2.1 and 4.2.2 should be observed by all individuals engaged in the procedures discussed in this recommended practice. 4.2.1? Toxicity Considerations for Petroleum Substances 4.2.1.1 General...