Grade | X | WW | WG | N | M | K |
Appearance | Transparent Solid | |||||
Color | slightly yellow | pale yellow | yellow | deep yellow | yellow brown | yellow red |
Correspond to the Standard Glass Color Piece of Rosin | ||||||
Softening Point (R&B),°C, min | 76 | 75 | 74 | |||
Acid Value, (mgKOH/g), min | 166 | 165 | 164 | |||
Alcohol insoluble Substance ,(%) , max | 0.03 | 0.03 | 0.04 | |||
Unsaponifiable matter, (%) ,max | 5 | 5 | 6 | |||
Ash, (%) ,max | 0.02 | 0.03 | 0.04 |
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