GB/T 32991-2016Test method for density uniformity of mineral wool for thermal insulation (English PDF)
矿物棉绝热材料密度均匀性试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 13, 2016
Implementation date
September 1, 2017
Scope
GB/T 32991-2016 is the English-translated version of 矿物棉绝热材料密度均匀性试验方法.
GB/T 32991-2016 is the Chinese standard "Test method for density uniformity of mineral wool for thermal insulation".
Its scope clause reads: This standard specifies the terminology and definition of the test method for density uniformity of mineral wool insulation materials, principles, apparatus, sample, test procedure, knot Fruit calculation and test report.
This standard applies to glass wool, rock wool, slag cotton, aluminum silicate and other mineral wool insulation materials products. Other density uniformity requirements Materials may also refer to the use of this standard.
Its clauses include normative reference documents; terms and definitions; principle; instruments.
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Document preview — GB/T 32991-2016
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 reference documents
- 3 terms and definitions
- 4 principle
- 5 instruments
1 Scope
This standard specifies the terminology and definition of the test method for density uniformity of mineral wool insulation materials, principles, apparatus, sample, test procedure, knot
Fruit calculation and test report.
This standard applies to glass wool, rock wool, slag cotton, aluminum silicate and other mineral wool insulation materials products. Other density uniformity requirements
Materials may also refer to the use of this standard.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
Thermal insulation materials and related terms GB/T 4132
Test methods for mineral wool and its products GB/T
3 terms and definitions
GB/T 4132 Definitions and the following terms and definitions apply to this document.
3.1 Maximum surface density deviation value
The sample is cut to a specified number of small pieces, all the small pieces of the sample surface density and the bulk sample surface density deviation of the maximum value to kg/m2.
3.2 Maximum surface density deviation rate
The ratio of the maximum density deviation to the bulk density of the sample is expressed as a percentage.
3.3 Density uniformity
Indicates the uniformity of the density distribution, expressed as the maximum surface density deviation or the maximum surface density deviation.
4 principle
Measure the surface density of the bulk sample. The whole sample is cut into a predetermined number of specimens, and the surface density of each specimen is measured. Calculation
Maximum surface density deviation and/or maximum surface density deviation.
5 instruments
5.1
steel ruler, scale value of not less than 1mm.
5.2
balance, the scale value of not less than 1g.
......
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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