GB/T 36492-2018 English PDF

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GB/T 36492-2018: Method for determination of fiber shedding of mineral wool products
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 36492-2018	119	Add to Cart	3 days	Method for determination of fiber shedding of mineral wool products	Valid

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Basic data

Standard ID: GB/T 36492-2018 (GB/T36492-2018)
Description (Translated English): Method for determination of fiber shedding of mineral wool products
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q25
Classification of International Standard: 91.120.10
Word Count Estimation: 6,650
Date of Issue: 2018-07-13
Date of Implementation: 2019-06-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 36492-2018: Method for determination of fiber shedding of mineral wool products

---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.
Method for determination of fiber shedding of mineral wool products ICS 91.120.10 Q25 National Standards of People's Republic of China Method for determining fiber shedding of mineral wool products Published on.2018-07-13 2019-06-01 implementation State Market Supervisory Administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the China Building Materials Federation. This standard is under the jurisdiction of the National Thermal Insulation Material Standardization Technical Committee (SAC/TC191). This standard was drafted. Nanjing Fiberglass Research and Design Institute Co., Ltd., Owens Corning (China) Investment Co., Ltd., National Glass Fiber Product Quality Supervision and Inspection Center. The main drafters of this standard. Ding Qing, Cui Jun, Zhang Zhi, Chen Haitao, Shi Chunming, Zhang Yankai, Zhang Jianhong, Tang Jian, Qu Huili, Pan Yang. Method for determining fiber shedding of mineral wool products

1 Scope

This standard specifies the terms and definitions, principles, equipment, samples, test procedures and results of the method for determining the shedding of mineral wool products. Calculation and test report. This standard applies to mineral cotton blankets, felts, boards and other products.

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 4132 insulation materials and related terms

3 Terms and definitions

The following terms and definitions as defined in GB/T 4132 apply to this document. 3.1 Fiber shedding Fibers and other materials on the surface of mineral wool products adsorbed by the sampling system.

4 Principle

The sample is placed in a prescribed laboratory environment for a period of time, passing through the sample collection tube of the sampling system in a certain direction, using the pump The suction and the filter paper in the sample collection tube collect the shedding. According to the difference between the quality of the filter paper and the adsorption area before and after the test, the amount of fiber shedding and the unit surface were calculated. The amount of fiber loss.

5 instruments

5.1 Sampling system. voltage regulator, 0V~250V; fan, measuring range 20L/min~500L/min; sample collection tube, closed at one end, open end device Fixed filter paper retaining ring, inner diameter 102mm, length 380mm; slot, open on the sample tube, length 305mm, width 9mm, half at both ends Arc, see Figure 1; pressure gauge, range 0Pa ~ 1000Pa, accuracy grade 0.3%. 5.2 Balance. The division value is 0.001g. 5.3 Steel ruler. accuracy 1mm. 5.4 Qualitative filter paper. diameter (100 ± 1) mm, thickness (2.2 ± 0.1) mm, the rejection of 0.5μm particles is not less than 95%. ......

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