1 Scope
This standard specifies the test methods for the coatings of paints, varnishes or relevant products on resistance to high temperature and high humidity. This standard is applicable to the determination of resistance to heat and humidity of paint films.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
GB/T 1765 Method of Producing of Paint Films for Testing Heat and Humidity Resistance, Salt-fog Resistance and Accelerated Weathering
GB/T 1766 Paints and Varnishes - Rating Schemes of Degradation of Coats (GB/T 1766-1995, neq ISO 4628:1980)
GB/T 3186-2006 Paints Varnishes and Raw Materials for Paints and Varnishes - Sampling (ISO 15528:2000, IDT)
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods (GB/T 6682-1992, neq ISO 3696:1987)
GB/T 9271 Paints and Varnishes - Standard Plates for Testing (GB/T 9271-2008, eqv ISO 1514:1984)
GB/T 13452.2 Paints and Varnishes - Determination of Film thickness (GB/T 13452.2-1992, eqv ISO 2808:1974)
3 Terms and Definitions
For the purposes of this standard, the following terms and definitions apply:
3.1
Resistance to heat and humidity
The resistance of paint films to such environmental effects as high temperature and high humidity.
4 Reagent
It shall comply with the purity specified in GB/T 6682 and the water shall be of Grade 3 at least.
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Reagent
5 Instruments and Equipment
6 Sampling
7 Test Plate
8 Test Procedures
9 Result Assessment
10 Test Report
