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See Chinese contents: GB/T 12008.7-2010 GB/T 12008.7-2010: Plastics -- Polyether polyols -- Part 7: Determination of viscosity
This Part of GB/T 12008 specifies the methods for the determination of viscosity of polyether polyols. Method A is Brookfield viscosity method. This test method is applicable to the determination of viscosity of polyether polyols with the viscosity range of (10 ~ 100,000) mPaS at 25~50 Celcius-degree. Meanwhile, it is also applicable to the determination of viscosity of a more viscous sample that can be dissolved in n-butyl acetate.
