Item

Unit

Target

Test Result

Test Method

Top
Grade

First
Grade

Qualified
Product

Exterior

-

Colorless clear
liquid without mechanical
immpurities

Colorless or
yellowish  
liquid
without
mechanical
immpurities

Colorless
clear liquid
without
mechanical
immpurities

Visual inspection

Diethylene glycol

%W/W

≥99.8

≥99.5

≥99

99.96

Q-HLSH 01.032-2020

Glycol

%W/W

≤0.05

≤0.15

≤0.50

＜0.1

SH/T 1054-1991

Triethylene glycol

%W/W

≤0.05

≤0.4

≤1.00

≤0.02

SH/T 1054-1991

Chroma(platinum-Cobalt)

Aph

≤10

≤15

≤30

10

GB 3143-1982

Density(20℃)

g/cm³

1.1155-1.1176

1.1164

GB/T 4472-2011

Water content

%W/W

≤0.1

≤0.2

0.0227

GB/T 6283-2008

Initial boiling point

℃

≥242

≥240

243.8

SH/T 1053-1991

Final boiling point

℃

≤250

≤255

247.6

SH/T 1053-1991

Fe(Fe2+)

%W/W

≤0.0001

-

＜0.00001

GB/T 3049-2006

Acid(Acetic acid)

%W/W

≤0.01

-

0.0008

GB/T14571.1-2016