Items

Spec

Value

Specific gracity(25℃)

≧ 1.2613

1.2617

Glycerine content

≧ 99.5%

99.9%

Color (APHA)

≦ 20

2.5

Residue on Ignition

≦ 0.01%

0.007%

Chloride content

≦ 5 ppm

2.5

Sulfate content

≦ 20 ppm

Passed

Heavy metals

≦ 5 ppm

Passed

Chlorinated compound

≦ 30 ppm

Passed

Fatty acid & Esters

≦ 1.0mL of 0.5N NaOH/50g sample

0.50

Assay, anhydrous basis

99.0 ~ 101.0

99.9

Water content

≦ 0.3%

0.17%

Limit of diethylene glycol (DEG) & related compounds

≦ 0.1% DEG or any other individual impurity;

≦1.0% for total impurities

passed

Organic volatile impurities

Chloroform ≦ 60ppm

1,4 dioxane ≦380ppm

methylene chloride ≦ 600ppm

trichloroethylene ≦ 80ppm

Passed