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Index name

Top-grade

First grade

Qualified product

colorless transparent liquid

Dimethyl amine % ≥

99.8

99.5

99.0

Monomethylamine% ≤

0.10

0.20

0.50

Trimethyl amine % ≤

0.05

0.20

0.40

Ammonia% ≤

0.03

0.05

0.10

Index name

Top grade

First grade

Qualified product

Appearance

colorless transparent liquid

Monomethylamine% ≤

0.10

0.15

0.25

Dimethyl amine % ≥

40.0

40.0

40.0

Trimethyl amine % ≤

0.10

0.15

0.25

Ammonia% ≤

0.01

0.08

0.12