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. 2022 Apr 12;4:19. doi: 10.1186/s42238-022-00130-3

Table 4.

Number of sample failures and the occurrence of solvents in samples

USP limit (ppma) Passed Failed Present Not detected
Class 3 2-butanol < 5000 170 109 194 85
Acetone < 5000
Butanone < 5000
Diethyl ether < 5000
Ethanol < 5000
Ethyl acetate < 5000
IsoOH (Isopropanol) < 5000
MTBE (tertbutyl methyl ether) < 5000
Class 2 1.4 Dioxane < 380 13 2 13 2
Acetonitrile < 410
Chlorobenzene < 360
Cyclohexane < 3880
Cumene (isopropyl benzene) < 70
Methanol < 3000
Methyl cyclohexane < 1180
Methylene Chloride < 600
Ethylbenze Total xylenes < 2170
o-xylene
p+m xylene
Tetrahydrofuran < 720
Toluene < 890
Trans 1,2 Dichloroethene Total dichloroethenes < 1870
Cis dichloro-ethene
Class 1 Benzene < 2 5 0 2 3
Total 188 111 209 90

appm parts per million