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GB/T 32991-2016: Test method for density uniformity of mineral wool for thermal insulation
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32991-2016 | English | 119 |
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Test method for density uniformity of mineral wool for thermal insulation
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GB/T 32991-2016
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Basic data | Standard ID | GB/T 32991-2016 (GB/T32991-2016) | | Description (Translated English) | Test method for density uniformity of mineral wool for thermal insulation | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q25 | | Classification of International Standard | 91.100.60 | | Word Count Estimation | 6,623 | | Date of Issue | 2016-10-13 | | Date of Implementation | 2017-09-01 | | Regulation (derived from) | National Standard Notice No.1716 of 2016 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 32991-2016: Test method for density uniformity of mineral wool for thermal insulation---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for density uniformity of mineral wool for thermal insulation
ICS 91.100.60
Q25
National Standards of People's Republic of China
Standard Test Method for Density Uniformity of Mineral Cotton Thermal Insulation Materials
2016-10-13 released
2017-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the China Building Materials Federation.
This standard is nationalized by the National Standardization Technical Committee for Thermal Insulation (SAC/TC191).
The drafting of this standard. Nanjing Glass Fiber Research and Design Institute Co., Ltd., Jin Fulai Si (Shanghai) Insulation Materials Co., Ltd., Hebei gold
Granville New Building Materials Co., Ltd., the national glass fiber product quality supervision and inspection center.
The main drafters of this standard. Cui Jun, Chen Lixuan, Li Junguang, Jiang Pengfei, Kang Ming, Gao Yongtao, Chen Lihua, Yang Chao
Standard Test Method for Density Uniformity of Mineral Cotton Thermal Insulation Materials
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 maximumdifferenceofarealdensity
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 maximumarealdensitydifferencerate
The ratio of the maximum density deviation to the bulk density of the sample is expressed as a percentage.
3.3
Density uniformity densityuninformity
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.
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