GB/T 1664-1995 "Determination of Color of Plasticizers" specifies the method for determining the appearance color of plasticizers, applicable to various liquid plasticizers. The platinum-cobalt colorimetric method is used, comparing the plasticizer sample with standard platinum-cobalt colorimetric solutions in colorimetric tubes to determine the color grade. The test requires equipment such as standard platinum-cobalt colorimetric solutions, Nessler tubes, and colorimetric tube racks. The operation is simple, providing a universal method for quality control of plasticizer appearance.
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 | G70 | ICS | 87.060.30 |
| Release Date | 1995-01-12 00:00:00 | Implementation Date | 1995-10-01 00:00:00 |