China Standard: GB/T 12010.8-2010 Plastic—Poly (vinyl alcohol)(PVAL) materials—Part 8:Determination

This part of GB/T 12010 specifies a method for determining the transparency of an aqueous solution of a non-fiber polyvinyl alcohol material by a spectrophotometer.

This section applies to the determination of the transparency of a 4% aqueous solution of polyvinyl alcohol material with a degree of alcoholysis greater than 70% (molar fraction).