GB/T 30808-2014Thermal insulation products for buildings - Determination of retention rate on tensile strength perpendicular to the faces in hygrothermal conditions (English PDF)
建筑用绝热制品 湿热条件下垂直于表面的抗拉强度保留率的测定
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 6, 2014
Implementation date
February 1, 2015
Scope
GB/T 30808-2014 is the English-translated version of 建筑用绝热制品 湿热条件下垂直于表面的抗拉强度保留率的测定.
GB/T 30808-2014 is the Chinese standard "Thermal insulation products for buildings - Determination of retention rate on tensile strength perpendicular to the faces in hygrothermal conditions".
Its scope clause reads: This standard specifies the post building insulation products, a period of time at a predetermined temperature and humidity conditions, the tensile strength perpendicular to the surface Determination of retention rates.
This standard applies to building insulation products. Its clauses include terms and definitions; equipment; sample.
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Document preview — GB/T 30808-2014
National Standard of the People's Republic of China
- ICS
- 91.100.60
- Classification
- Q 25
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Equipment
- 5 Sample
1 Scope
This standard specifies the post building insulation products, a period of time at a predetermined temperature and humidity conditions, the tensile strength perpendicular to the surface
Determination of retention rates.
This standard applies to building insulation products.
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 4132-1996 insulation materials and related terms
JG149-2003 expanded polystyrene board thin plaster exterior insulation system
3 Terms and Definitions
GB/T 4132-1996 and defined the following terms and definitions apply to this document.
3.1 Retention of tensile strength perpendicular to the surface of the retentionrateontensilestrengthperpendiculartothefaces
Perpendicular to the surface of the specimen tensile strong sample was a period of time at a predetermined temperature and humidity conditions, and the determination not to place after place degree. Specific tensile strength after placement and before placing the specimen is perpendicular to the surface of the tensile strength retention rate.
4 Equipment
4.1
temperature and humidity box, temperature accuracy of ± 1 °C, humidity accuracy of ± 3%.
4.2
tensile strength test machine, accuracy no less than 0.1N.
4.3
steel ruler, accuracy no less than 1mm.
5 Sample
5.1 Sample Preparation
With the right tools cut the sample from the sample, and to ensure the smooth surface of the sample.
5.2 Sample Size
Square sample.
Sheet material size (200 ± 1) mm × (200 ± 1) mm, the original thickness of the sample thickness.
Belt-shaped article size (100 ± 1) mm × (100 ± 1) mm, a thickness of the original thickness of the sample.
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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
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