GB/T 4893.4-2023
Physical and chemical properties test of furniture surface paint film Part 4: Adhesion cross-cut determination method (English Version)
- Standard No.
- GB/T 4893.4-2023
- Language
- Chinese, Available in English version
- Release Date
- 2023
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 4893.4-2023
- Replace
- GB/T 4893.4-2013
- Scope
- This document describes a test method for determining the adhesion of paint films on furniture surfaces. This document is applicable to the cured surface of painted furniture and is carried out on unused furniture or test sample surfaces. This document is not applicable to paint films with a total thickness greater than 250 microns or to uneven paint films.
- Introduction
1. Standard Overview
GB/T 4893.4—2023 is the latest standard for the cross-cutting determination of paint film adhesion on furniture surfaces, replacing the old version GB/T 4893.4—2013. This standard specifies in detail the method for determining the adhesion of paint films on furniture surfaces and is applicable to painted furniture surfaces.
2. Comparison of standard frameworks
Dimensions Old version of the standard (GB/T 4893.4—2013) New version of the standard (GB/T 4893.4—2023) Scope Applicable to furniture paint film adhesion determination The scope of application has been expanded and it is clearly not applicable to paint films with a total thickness greater than 250μm Normative references - GB/T 2792—2014 - GB/T 4893.5 - GB/T 37356 - GB/T 37361 Terms and Definitions Undefined Undefined, but add principle description 3. Implementation Suggestions
3.1 Instrument Selection and Maintenance
Cutting Tools: It is recommended to use multi-blade cutting tools first, because they can cut multiple cuts at the same time and improve efficiency. Check the blade status regularly to ensure that there are no defects such as curling and burrs.
3.2 Test condition control
Pretreatment and test environment: Strictly control the temperature 23°C ± 2°C and relative humidity 50% ± 5% to ensure that the paint film is in the best test state.
3.3 Result evaluation optimization
Visual inspection: It is recommended to use a handheld magnifier with a magnification of 4~6 times to assist observation and ensure accurate evaluation results. For multi-layer paint film specimens, special attention should be paid to the shedding between interfaces.
GB/T 4893.4-2023 Referenced Document
- GB/T 2792-2014 Measurement of peel adhesion properties for adhesive tapes
- GB/T 37356 Paints and varnishes—Lighting and procedure for visual assessments of coatings
- GB/T 37361 Determination of the film thickness—Ultrasonic thickness gauge method
- GB/T 4893.5 Test of surface coatings of furniture.Part 5:Determination of thickness
GB/T 4893.4-2023 history
- 2023 GB/T 4893.4-2023 Physical and chemical properties test of furniture surface paint film Part 4: Adhesion cross-cut determination method
- 2013 GB/T 4893.4-2013 Test of surface coatings of furniture.Part 4:Determination of adhesion.Cross cut
- 1985 GB/T 4893.4-1985 Furniture--Assessment of adhesion of surface coatings--Cross cut