GB/T 7996-1987
Replaced
GB/T 7991.4-2019
Active
National standards
GB/T 7991.4-2019 Test method of viterous and porcelain enamels—Part 4:Determination of resistance to impact
GB/T 7991.4-2019 Test method of viterous and porcelain enamels—Part 4:Determination of resistance to impact
Price:
$ 50
Basic Information
Standard Code:
GB/T 7991.4-2019
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Non-metallic chemical machinery and equipment
ICS Name:
Enamel
Publish Date:
2019-12-10
Implement Date:
2020-11-01
Pages:
7 pages
Scope
This part of GB/T 7991 specifies the test principles, instruments and equipment, samples, test procedures, calculation formulas, and test reports for the mechanical impact resistance of the enamel layer.
This part is applicable to the determination of the mechanical impact resistance of enamel flat plate samples.
Development Information
Same series standard
Replace the following standards
Referenced Standards
GB/T 308.1-2013 Rolling bearings—Balls—Part 1:Steel balls
GB/T 7991.5-2014 Test method of viterous and porcelain enamels—Part 5:Determination of thickness by electromagnetic method
GB/T 7991.6-2014 Test method of viterous and porcelain enamels—Part 6:High voltage test
HG/T 3105-2009 Preparation of glazed steel plate test specimens
GB/T 7991.6-2025 Test method of viterous and porcelain enamels—Part 6:High voltage test
Related Standards
GB/T 11418-1989
Active
GB/T 11418-1989 Determination of resistance to heat of vitreous and porcelain enamels
GB/T 11419-1989
Replaced
GB/T 11419-1989 Determination of resistance to thermal shock of vitreous and porcelain enamels
GB/T 11420-1989
Replaced
GB/T 11420-1989 Measurement of specular gloss of vitreous and porcelain enamels
GB/T 13484-1992
Replaced
GB/T 13484-1992 Enamelled ware in contact with food
GB/T 13485-1992
Abolished