Quality Index of Hydrogenated Rosin
|
Item
|
Extra grade
|
First grade
|
Second grade
|
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|
Appearance
|
transparent
|
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|
Color
|
Color Requirements of STD Glass
|
Conform to Color Requirements of STD Glass for Rosin
|
|||
|
No Deeper than Lovibond Color
|
Yellow
|
12
|
20
|
30
|
|
|
Red
|
1.4
|
2.1
|
2.5
|
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|
Acid number (mgKOH/g)≤
|
162.0
|
160.0
|
158.0
|
||
|
Softening point(Ring-and-ball method)℃≥
|
72.0
|
71.0
|
70.0
|
||
|
Ethanol insolubles%≤
|
0.020
|
0.030
|
0.040
|
||
|
Non-saponifiable matter%≤
|
7.0
|
8.0
|
9.0
|
||
|
Abietic acid % ≤
|
2.00
|
2.50
|
3.00
|
||
|
Dehydroabietic acid % ≤
|
10.0
|
10.0
|
15.0
|
||
|
Oxygen absorptivIty % ≤
|
0.20
|
0.20
|
0.30
|
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