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LOW ALKALI PVA
ITEM | hydrolysis,% ≥ | viscosity,mPa·s | Sodiumacetate,% ≤ | volatile,% ≤ | ash,% ≤ | purity,%≥ |
17-99(L) | 99.5 | 22~31 | 2.1 | 7.0 | 0.8 | 90.0 |
18—99(L) | 99.2 | 32~40 | 2.1 | 7.0 | 0.8 | — |
20-99(L) | 99.2 | 46~50 | 2.1 | 7.0 | 0.8 | — |
22-99(L) | 99.2 | 51~56 | 2.1 | 7.0 | 0.8 | — |
24—99(L) | ≥99.2 | >56 | 2.1 | 7.0 | 0.8 | — |
17—88 | 86.0~89.0 | 20.5~24.5 | 1.0 | 5.0 | 0.7 | — |
PVA 17-88,17-99,20-99,26-99