This standard specifies a standard method for determining the transparency of aqueous solutions of non-fiber polyvinyl alcohol materials, applicable to polyvinyl alcohol materials with a degree of alcoholysis greater than 70% -1-4. The core of the method involves preparing an aqueous solution of a specific concentration and measuring its light transmittance at a specific wavelength using a spectrophotometer, which serves as a quantitative indicator of transparency -1-6. To ensure measurement accuracy, the standard specifies explicit requirements for the precision of the balance -2-5. This method is primarily used to evaluate the optical performance and purity of materials in applications such as adhesives and films -7.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G31 | ICS | 83.080 |
| Release Date | 2010-09-02 00:00:00 | Implementation Date | 2011-05-01 00:00:00 |
