GB/T 14703-2008 "Raw Lacquer" specifies the technical requirements, test methods, inspection rules, etc., for raw lacquer, applicable to natural raw lacquer products. Key indicators include urushiol content, moisture content, drying time, and ash content. The urushiol content is tested using a gas chromatograph, moisture content is determined with a Karl Fischer moisture analyzer, and drying performance requires equipment such as a constant temperature and humidity chamber. This standard provides quality assurance for the application of natural raw lacquer in fields such as cultural relic conservation and high-end coating.
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 | B72 | ICS | 87.040 |
| Release Date | 2008-08-07 00:00:00 | Implementation Date | 2009-03-01 00:00:00 |
