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Quality Index of High-hydrogenated Rosin (GB/T 14020-2006)
 
2010-03-11   Hits ：3580    songtao business
Item
Extra grade
First grade
Appearance
transparent
Color
Color Requirements of STD Glass
Conform to Color Requirements of STD Glass for Rosin
No Deeper than Lovibond Color
Yellow
12
20
Red
1.4
2.1
Acid number (mgKOH/g)≤
164.0
160.0
Softening point(Ring-and-ball method)℃≥
73.0
72.0
Ethanol insolubles%≤
0.020
0.030
Non-saponifiable matter%≤
7.0
8.0
Abietic acid % ≤
0.5
1.00
Dehydroabietic acid % ≤
8.0
10.0
Oxygen absorptivIty % ≤
0.20
0.20

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