GB/T 39936-2021 English PDF

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GB/T 39936-2021: Cellular plastics for use in cryogenic thermal insulation
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39936-2021	559	Add to Cart	5 days	Cellular plastics for use in cryogenic thermal insulation	Valid

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Basic data

Standard ID: GB/T 39936-2021 (GB/T39936-2021)
Description (Translated English): Cellular plastics for use in cryogenic thermal insulation
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G32
Word Count Estimation: 30,366
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 39936-2021: Cellular plastics for use in cryogenic 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.
Cellular plastics for use in cryogenic thermal insulation ICS 83.100 G32 National Standards of People's Republic of China Cryogenic foam plastic Released on 2021-03-09 2021-10-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules of GB/T 1.1-2009. Please note that some of the contents of this document may involve patents. Publication of this document The institution does not bear the responsibility for identifying patents. This standard was proposed by the China National Light Industry Council. This standard is under the jurisdiction of the National Standardization Technical Committee for Plastic Products (SAC/TC48). Drafting organizations of this standard. Jiangsu Zhongsheng Pipeline Engineering Technology Co., Ltd., Zhejiang Dehe Thermal Insulation Technology Co., Ltd., Jiangsu Lvyuanxin Materials Co., Ltd., Jiangsu Jianghua Polyurethane Product Quality Inspection Co., Ltd., Beijing Technology and Business University, Wanhua Chemical (Ningbo) Rongwei Polyurethane Co., Ltd., Zhejiang Zhenyang Insulation Technology Co., Ltd., Changzhou Huasang Insulation Technology Co., Ltd., Jiangsu Jingxue Energy-saving Technology Co., Ltd., Shanghai Haiyue Energy Saving Technology Co., Ltd., Shaoxing Huachuang Polyurethane Co., Ltd., Shanghai Dongda Polyurethane Co., Ltd., Shaoxing Chenxing Polyurethane Co., Ltd. Co., Ltd., Jiangsu Chemical Industry Research Institute Co., Ltd., Petroleum and Chemical Industry Energy-saving Product Quality Supervision and Inspection Center, China Huanqiu Engineering Corporation Company, CNOOC Gas and Power Group Co., Ltd. Technology R&D Center, Sinopec Engineering Construction Company (SEI), CNOOC Petrochemical Engineering Co., Ltd. Company, Sinopec Guangzhou Engineering Co., Ltd. (Luoyang Institute), Dow Chemical (China) Investment Co., Ltd., BASF Polyurethane Specialty Products (China China) Co., Ltd., Nanjing Jujian Testing Technology Co., Ltd. The main drafters of this standard. Xiang Bing, Wu Hao, Zhang Wanwei, Lin Yongfei, Yu Yiping, Chen Qian, Tang Jie, Zhang Ping, Jia Jia, Jia Fuzhong, Li Yuchun, Xiang Minghua, Li Xueqing, Yu Rengen, Luo Chen, Ni Xinxing, Jia Qiyue, Yang Fan, Li Fengqi, Zhai Junhong, Qi Luhai, Song Mingzhao, Yang Jie, He Longhui, Li Zhanjie, Zeng Bo. Cryogenic foam plastic

1 Scope

This standard specifies the classification, classification, requirements, test methods, inspection rules, packaging, marking, and transportation of pre-formed foams for cryogenic insulation. Loss and storage. This standard is applicable to pre-formed rigid polyisocyanurate foam for cold storage at -196℃~120℃ and protection at -110℃~100℃ Pre-formed rigid polyurethane foam for cold use.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 1036-2008 Determination of the coefficient of linear expansion of plastics at -30℃~30℃ Quartz dilatometer method GB/T 2406.2-2009 Determination of combustion behavior of plastics by oxygen index method Part 2.Room temperature test GB/T 2918-2018 Standard environment for condition adjustment and testing of plastic specimens GB/T 6342-1996 Determination of linear dimensions of foam plastics and rubber GB/T 6343-2009 Determination of Apparent Density of Foam Plastic and Rubber GB/T 8810-2005 Determination of water absorption rate of rigid foam GB/T 8811-2008 Rigid foam plastic dimensional stability test method GB/T 8813-2020 Determination of the compressive properties of rigid foam GB/T 10294-2008 Determination of steady-state thermal resistance and related characteristics of thermal insulation materials. Protective hot plate method GB/T 10295-2008 Determination of steady-state thermal resistance and related characteristics of thermal insulation materials by calorimeter method GB/T 10799-2008 Determination of open and closed cell volume percentage of rigid foam GB/T 12812-2006 Determination of the fragility of rigid foam GB/T 20673-2006 Determination of the coefficient of linear expansion of rigid foam below ambient temperature GB/T 21332-2008 Determination of water vapor transmission performance of rigid foam JC/T 618-2019 Chemical analysis method of soluble chloride, fluoride, silicate and sodium ions in thermal insulation materials QB/T 5114-2017 Determination of residual blowing agent in rigid polyurethane foam HJ1057-2019 Determination of HCFC-22, CFC-11 and HCFC-141b and other ozone-depleting substances in combined polyether headspace/gas Gas chromatography-mass spectrometry HJ1058-2019 CFC-12, HCFC-22, CFC-11 and HCFC-141b in rigid polyurethane foam and combined polyether Determination of Ozone Depleting Substances Portable Headspace/Gas Chromatography-Mass Spectrometry

3 categories

Products are divided into two categories according to the type of material. rigid polyisocyanurate foam (PIR) and rigid polyurethane foam (PUR).

4 classification

The products are divided into seven levels according to different densities. 50kg/m3, 100kg/m3, 160kg/m3, 240kg/m3, 320kg/m3, 450kg/m3, ......

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