Calculating Threshold Quantity for Chemicals with Concentration Qualifiers November 30th, 2021
Title 40 CFR ยง68.130 contains the table of RMP chemicals and their corresponding threshold quantities. Of the seventy-seven substances listed, four contain a concentration qualifier: Ammonia (conc 20% or greater) Hydrochloric acid (conc 37% or greater) Hydrogen fluoride/Hydrofluoric acid (conc 50% or greater) Nitric acid (conc 80% or greater) What does the concentration qualifier mean? […]