GB/T 7991.9-2014Test method of vitreous and porcelain enamels - Part 9: Determination of adhesion tensile strength (English PDF)
搪玻璃层试验方法 第9部分：抗拉强度的测定
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 5, 2014
Implementation date
July 1, 2015
Scope
GB/T 7991.9-2014 is the English-translated version of 搪玻璃层试验方法 第9部分：抗拉强度的测定.
GB/T 7991.9-2014 is the Chinese standard "Test method of vitreous and porcelain enamels - Part 9: Determination of adhesion tensile strength".
Its scope clause reads: GB/T 7991 provisions of this part of the enamel coating apparatus, the specimen tensile strength was measured under conditions at room temperature (10 °C ~ 35 °C), The test procedure, the results of calculations and test reports.
At room temperature (10 °C ~ 35 °C) conditions measured tensile strength This section applies to glass-lined layer of glass-lined equipment. Its clauses include definitions and symbols; device.
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Document preview — GB/T 7991.9-2014
National Standard of the People's Republic of China
- ICS
- 25.220.50
- Classification
- G 94
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Definitions and symbols
- 4 device
1 Scope
GB/T 7991 provisions of this part of the enamel coating apparatus, the specimen tensile strength was measured under conditions at room temperature (10 °C ~ 35 °C),
The test procedure, the results of calculations and test reports.
At room temperature (10 °C ~ 35 °C) conditions measured tensile strength This section applies to glass-lined layer of glass-lined equipment.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
RT Test Method. Test Part 1 GB/T 228.1 metallic materials tensile
GB/T 7991.5 enamel coating Test methods - Part 5. electromagnetic method to measure the thickness
GB/T 7991.6 enamel coating Test methods - Part 6. High voltage test
GB/T 12160 uniaxial extensometer calibration test
Verification and calibration of tension and (or) pressure testing machine force measuring system. GB/T 16825.1 of static uniaxial testing machines - Part 1
Glass-lined equipment and technical conditions GB 25025
3 Definitions and symbols
The following terms and definitions and symbols apply to this document.
3.1 tensile stress stress
Due to the action of force, so that the unit area of the specimen subjected to tension.
3.2 tensile strength glass-lined layer
When the enamel coating tensile stress fracture occurs.
3.3
Symbols and
Symbols and corresponding descriptions are shown in Table 1.
4 device
4.1
Electronic tensile testing machine shall conform to GB/T 16825.1 requirements, accuracy grade 1 or higher than Class 1.
4.2
extensometer accuracy level should be consistent with GB/T 12160 requirements.
4.3
DC spark tester should be consistent with GB/T 7991.6 regulations.
4.4
enamel coating thickness measurement range of 0.5mm ~ 2.0mm, in line with GB/T 7991.5 regulations.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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