T/TTPVB 0002-2020 (English Version) PDF

Scope: This standard is based on the PVB Industry Alliance standard Q/331023LM, and has been partially improved and improved based on industry market demand and practice. a. The product classification and code names basically follow the alliance standards, with slight modifications and enrichments to meet the needs of the market. b. Regarding the intrinsic quality requirements of the products, we improve them in terms of appearance, physical, chemical and mechanical properties. 1. For appearance defects, we should mainly improve them based on the number of joints. 2. Intrinsic quality, three indicators such as moisture content qualification rate, heat shrinkage rate, and haze have been modified to make them more stringent. 3. The impact performance index of the shot bag has been deleted and the UV transmittance index has been added. C. The judgment of quality inspection results is more clearly defined based on the actual situation. The formulation of the above standards is more specific and practical than the 2013 industry standards. It is easier to master and implement in the production process and market trade process.

T/TTPVB 0002-2020 history