GB/T 33011-2016 English PDF

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GB/T 33011-2016: Thermal insulating products for building applications -- Determination of freeze-thaw resistance
Status: Valid

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Basic data

Standard ID: GB/T 33011-2016 (GB/T33011-2016)
Description (Translated English): Thermal insulating products for building applications -- Determination of freeze-thaw resistance
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q25
Classification of International Standard: 91.100.60
Word Count Estimation: 10,112
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 33011-2016: Thermal insulating products for building applications -- Determination of freeze-thaw resistance

---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.
Thermal insulation products for building applications - Determination of freeze-thaw resistance ICS 91.100.60 Q25 National Standards of People's Republic of China Determination of Freeze - thaw Resistance of Building Insulation Products Thermalinsulatingproducts forbuildingapplications- (ISO 16546..2012, IDT) 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 uses the translation method equivalent to ISO 16546..2012 "building insulation products with anti-freeze-thaw performance determination". And the normative reference in this standard international documents are consistent with the relationship between China's documents are as follows. GB/T 13480-2014 Determination of compression performance of building insulation articles (ISO 29469..2008, IDT) 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 unit. Nanjing Glass Fiber Research and Design Institute Co., Ltd., Shenzhen Jintai Detection Technology Co., Ltd., the national glass fiber Dimensional product quality supervision and inspection center. The main drafters of this standard. Tang Jian, Yang Chao, Jiang Pengfei, Cui Jun, Zhu Liping. Determination of Freeze - thaw Resistance of Building Insulation Products

1 Scope

This standard specifies the equipment and steps for determining the effect of continuous cycle conditions on the mechanical properties and moisture content of the product, -20 ℃ drying conditions to 20 ℃ immersion conditions. The method is suitable for use in insulated products. Its purpose is to simulate the effects of freeze-thaw on insulation products that are often exposed to water and low temperatures, such as inverted roofs and Underground and unprotected insulation products. The method does not apply to all thermal insulation products. If relevant, the product standard should indicate which products this standard applies to.

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. ISO 16535 Insulation works for building applications for long-term moisture absorption (Thermalinsulatingproducts forbuilding applications-Determinationoflong-termwaterabsorptionbyimmersion ISO 16536 Thermal insulation for building products - Thermal life testing (Thermalinsulatingproducts forbuilding applications-Determinationoflong-termwaterabsorptionbydiffusion) ISO 29469 Determination of the compressive properties of building insulation articles (Thermalinsulatingproducts forbuildingappli- cations-Determination ofcompressionbehaviour

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Freeze-thaw resistance The ability of the product to resist repeated soaking and freezing is measured by the change in water absorption and compression performance.

4 principle

The sample was subjected to 300 cycles of continuous drying from -20 ° C to 20 ° C immersion conditions, through changes in the sample water absorption and pressure Shrink strength or stress changes to determine the anti-freeze-thaw performance. The test requires any of the following long-term water absorption tests. a) Diffusion method water absorption test according to ISO 16536; b) Fully immersed water test according to ISO 16535. The selection of the water absorption test method a) and/or b) is given in the relevant product standard according to the application. Freeze, melt test in air and water respectively In progress.

5 equipment

5.1 Frozen environment box, can keep the temperature at (-20 ± 2) ℃. ......

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