CFR > Title 40 - Protection of Environment > CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY > SUBCHAPTER D—WATER PROGRAMS (Parts 100–149) > PART 116—DESIGNATION OF HAZARDOUS SUBSTANCES > 116.2—Abbreviations.

116.2—Abbreviations.

ppm=parts per million

mg=milligram(s)

kg=kilogram(s)

mg/l=milligrams(s) per liter= (approx.) ppm

mg/kg=milligram(s) per kilogram= (approx.) ppm

Code of Federal Regulations

[43 FR 10474, Mar. 13, 1978]