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Elliottii gum rosin prices appeared slightly upward!

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Quality Index of Gum Rosin from P.elliottii(LY/T 1332-1999)
 
2010-03-12   Hits ：3922    Songtao business
Item
X
WW
WG
N
M
K
Appearance
transparent
Color
slight yellow
yellowish
yellow
deepyellow
yellowish-brown
yellowish -red
Conform to Color Requirements of STD Glass for Rosin
Softening point(Ring-and-ball method) ℃≥
76.0
75.0
74.0
Acid value (mgKOH/g)≤
165.0
164.0
163.0
Ethanol insolubles %≤
0.030
0.030
0.040
Non-saponifiable matter %≤
8.0
8.0
9.0
Ash content %≤
0.020
0.030
0.040

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