GB/T 7989-2013Viterous and porcelain enamels—Determination of resistance to chemical corrosion by boiling acids and their vapours (English PDF)
搪玻璃釉 耐沸腾酸及其蒸气腐蚀性能的测定
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2013
Implementation date
October 1, 2014
Scope
GB/T 7989-2013 is the English-translated version of 搪玻璃釉 耐沸腾酸及其蒸气腐蚀性能的测定.
GB/T 7989-2013 is the Chinese standard "Viterous and porcelain enamels—Determination of resistance to chemical corrosion by boiling acids and their vapours". Its scope clause reads: This standard specifies the test apparatus and method for glass-lined plate specimen acid and neutral liquids and their vapors corrosion measurement.
This standard applies to the determination of vitreous enamel acid and neutral liquids and their vapors corrosion. Its clauses include reagents.
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Document preview — GB/T 7989-2013
National Standard of the People's Republic of China
- ICS
- 25.220.50
- Classification
- G 94
- Replacing
- GB/T 7989-2003
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 4 Reagents
- 4.1 Overview
1 Scope
This standard specifies the test apparatus and method for glass-lined plate specimen acid and neutral liquids and their vapors corrosion measurement.
This standard applies to the determination of vitreous enamel acid and neutral liquids and their vapors corrosion.
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.
GB/T 622 chemical reagent hydrochloric acid
GB/T 625 chemical reagent sulfuric acid
GB/T 678 chemical reagent alcohol (ethanol)
GB/T 6031 Determination of vulcanized rubber or thermoplastic rubber hardness (10 ~ 100IRHD)
GB/T 6579 laboratory glassware thermal shock and thermal shock strength test method
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 8269 citric acid
GB/T 12804 Laboratory glassware cylinder
GB/T 12806 Laboratory glassware single marking flask
GB/T 21784.2 laboratory glassware general purpose density meters - Part 2. Test methods and use
GB/T 28212 Laboratory glassware condenser
Preparation of HG/T 3105 glass-lined steel specimens
ISO 649-1 Laboratory glassware generic densitometer - Part 1. Specification (Laboratoryglassware; Density hydrometersforgeneralpurposes; Part 1. Specification)
ISO 3585 3.3 borosilicate glass properties (Borosilicateglass3.3-Properties)
Principle 3
Enamel coating is subjected to boiling acidic liquids or gases corrode certain period of time, measuring the mass loss of the glass-lined specimen, and the specimen in the calculation of the time
Mass loss rate per unit area on the room, that the corrosion rate. The lower corrosion rate, enamels boiling acidic liquids or gases corrosion resistance
It can be better.
4 Reagents
4.1 Overview
Unless otherwise specified, the test procedure is allowed only proven analytical grade reagents.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 7989
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 7989-2013 | Viterous and porcelain enamels—Determination of resistance to chemical corrosion by boiling acids and their vapours | current edition | Current |
| GB/T 7989-2003 | Viterous and porcelain enamels—Determination of resistance to chemical corrosion by boiling acids and their vapours | previous edition | Superseded |
This page sells the current edition, GB/T 7989-2013. Earlier editions are listed for reference only.
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