Contact person:Kitty Liang
Tel：+86-0771-2610277
+86 13481140850
Fax：+86-0771-2449722
E-mail: st-rosin@hotmail.com
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Quality Index of High-hydrogenated Rosin (GB/T 14020-2006)
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2010-03-11 Hits
：4101 songtao business |
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Item
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Extra grade
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First grade
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Appearance
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transparent
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Color
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Color Requirements of STD Glass
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Conform to Color Requirements of STD Glass for Rosin
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No Deeper than Lovibond Color
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Yellow
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12
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20
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Red
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1.4
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2.1
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Acid number (mgKOH/g)≤
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164.0
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160.0
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Softening point(Ring-and-ball method)℃≥
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73.0
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72.0
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Ethanol insolubles%≤
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0.020
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0.030
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Non-saponifiable matter%≤
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7.0
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8.0
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Abietic acid % ≤
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0.5
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1.00
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Dehydroabietic acid % ≤
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8.0
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10.0
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Oxygen absorptivIty % ≤
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0.20
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0.20
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