GB/T 7320-2018Refractories -- Determination of thermal expansion (English PDF)
耐火材料 热膨胀试验方法
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Issued by
State Administration for Market Regulation, China National Standardization Administration
Level / Type
National · Recommended
Issue date
May 14, 2018
Implementation date
April 1, 2019
Scope
GB/T 7320-2018 is the English-translated version of 耐火材料 热膨胀试验方法.
GB/T 7320-2018 is the Chinese standard "Refractories -- Determination of thermal expansion". Its scope clause reads: This standard specifies the definition, principle, equipment, sample, test procedure, result calculation, test error and test of thermal expansion measurement of refractory materials. report.
This standard applies to the determination of the linear expansion rate, the average linear expansion coefficient and the instantaneous linear expansion coefficient of refractory materials.
This standard contains the following two thermal expansion test methods. a) the differential method; b) The ejector method. Its clauses include terms and definitions.
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Document preview — GB/T 7320-2018
National Standard of the People's Republic of China
- ICS
- 81.080
- Classification
- Q 40
- Replacing
- GB/T 7320-2008
Issued by: State Administration for Market Regulation, China National Standardization Administration
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Initial temperature
- 3.2 Lower limit temperature
- 3.3 Upper limit temperature
1 Scope
This standard specifies the definition, principle, equipment, sample, test procedure, result calculation, test error and test of thermal expansion measurement of refractory materials.
report.
This standard applies to the determination of the linear expansion rate, the average linear expansion coefficient and the instantaneous linear expansion coefficient of refractory materials.
This standard contains the following two thermal expansion test methods.
a) the differential method;
b) The ejector method.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 4513.5 Unshaped refractories - Part 5. Sample preparation and pretreatment (GB/T 4513.5-2017, ISO 1927-
5.2012, MOD)
GB/T 5989 Refractory load softening temperature test method differential heating method (GB/T 5989-2008, ISO 1893.
2005, IDT)
GB/T 7321 shaped refractory product sample preparation method
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
GB/T 16839.1 Thermocouple Part 1. Index Table
GB/T 16839.2 Thermocouple Part 2. Tolerance
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Initial temperature
T0
The starting temperature (usually room temperature) used to record the amount of thermal expansion.
3.2 Lower limit temperature
T1
The lowest temperature at which the line expands is measured over a range of temperatures.
3.3 Upper limit temperature
T2
The maximum temperature at which the line expands is measured over a range of temperatures. […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 4513.5Monolithic (unshaped) refractory products -- Part 5: Preparation and treatment of test pieces
- GB/T 4513.5-2017Monolithic (unshaped) refractory products -- Part 5: Preparation and treatment of test pieces
- GB/T 5989Refractory products - Determination of refractoriness under load(differential method with rising temperature)
- GB/T 5989-2008Refractory products - Determination of refractoriness under load(differential method with rising temperature)
- GB/T 7321Sample preparation for testing of shaped refractory products
- GB/T 8170Rules of rounding off for numerical values & expression and judgement of limiting values
ISO 1927 · ISO 1893 · GB/T 16839.2
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Related Standards
GB/T 16839.1-2018 — Thermocouples -- Part 1: EMF specifications and tolerances
GB/T 4513.5-2017 — Monolithic (unshaped) refractory products -- Part 5: Preparation and treatment of test pieces
GB/T 5989-2023 — Refractory products - Determination of refractoriness under load(differential method with rising temperature)
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GB/T 7320-2018
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