Test method for temperature change resistance of architectural coatings
1 Scope
This standard specifies the test method for temperature change resistance of architectural coatings.
This standard is applicable to the temperature change resistance test of architectural coatings.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling
GB/T 9271 Paints and varnishes - Standard panels for testing
JG/T 23 The preparation of plate specimens for testing of building paints and coatings
3 Terms and definitions
For the purposes of this document, the following term and definition apply.
3.1
temperature change resistance
capability of the coating of withstanding alternating cold-hot temperature changes while maintaining its original properties
4 Instruments and apparatus
4.1 Cryogenic box: with temperature controlled within (-20±2)℃.
4.2 Thermostat: with temperature controlled within (50±2)℃.
4.3 Thermostatic water bath: with temperature controlled within (23±2)℃.
4.4 Balance: with a weighing range of 500g and a sensitivity of 0.01g.
