ppm en · NOUN
Pronunciation
- (US) audio
Meanings
-
(abbreviation, alt-of, initialism) Initialism of parts per million (10000 ppm = 1%).
alt of parts per million
PIRG noted the European Union has a limit of 300 ppm for boron and that there should be a “full-fledged investigation to determine if limits should be established” in the US.
2018 November 20, Wayne Drash, “Consumer group warns of ‘dangerous’ slime products and other hazardous toys”, in CNN, archived from the original on 26 Oct 2022:The overflush consisted of 100 bbls of uncrosslinked 3000 ppm polymer, followed by one wellbore volume (~150 bbls) plus 450 bbls crude behind pipe.
1995, Proceedings, International Meeting on Petroleum Engineering, page 63:
-
(abbreviation, alt-of, initialism) Initialism of page(s) per minute.
alt of page(s) per minute
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| ppm | Number=Plur | lexicographic |
Coordinates
Relateds
percent · permyriad · permille