GB/T 33312-2016 "Binders for paints and varnishes—Polyisocyanate resins—General test methods" is applicable to the testing of polyisocyanate resins and resin solutions used in paints and varnishes. It specifies the determination methods for indicators such as non-volatile matter content, isocyanate group content, and viscosity. An analytical balance and an oven are used to measure the non-volatile matter content, a titrator is used to determine the isocyanate group content, a rotational viscometer is used to test viscosity, and a densimeter or pycnometer is used to measure density. The standard clarifies the test conditions and calculation methods for each indicator, providing a unified standard for the quality control of such resins.
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 | G50 | ICS | 87.060.20 |
| Release Date | 2016-12-13 00:00:00 | Implementation Date | 2017-07-01 00:00:00 |
