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GB/T 39506-2020 English PDF

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GB/T 39506-2020: (Determination of polyvinyl chloride (PVC) content in unplasticized polyvinyl chloride (PVC-U) pipes and fittings method based on total chlorine content)
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 39506-2020	English	129	Add to Cart	3 days [Need to translate]	(Determination of polyvinyl chloride (PVC) content in unplasticized polyvinyl chloride (PVC-U) pipes and fittings method based on total chlorine content)	Valid	GB/T 39506-2020

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Basic data

Standard ID	GB/T 39506-2020 (GB/T39506-2020)
Description (Translated English)	(Determination of polyvinyl chloride (PVC) content in unplasticized polyvinyl chloride (PVC-U) pipes and fittings method based on total chlorine content)
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G33
Word Count Estimation	7,740
Date of Issue	2020-11-19
Date of Implementation	2021-06-01
Regulation (derived from)	National Standard Announcement No. 26 of 2020
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration

GB/T 39506-2020: (Determination of polyvinyl chloride (PVC) content in unplasticized polyvinyl chloride (PVC-U) pipes and fittings method based on total chlorine content)

---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.
(Determination of polyvinyl chloride (PVC) content in unplasticized polyvinyl chloride (PVC-U) pipes and fittings method based on total chlorine content) ICS 83.140.30 G33 National Standards of People's Republic of China Rigid polyvinyl chloride (PVC-U) pipes and Determination of polyvinyl chloride (PVC) content in pipe fittings Method based on total chlorine content 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these 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 (SCA/TC48). Drafting organizations of this standard. Sinosteel Zhengzhou Metal Products Research Institute Co., Ltd., Guangdong Liansu Technology Industrial Co., Ltd., Yonggao Co., Ltd. Co., Ltd., Zhejiang Zhongcai Pipeline Technology Co., Ltd., Fujian Jiyou Plastic Co., Ltd., Fujian Yatong New Material Technology Co., Ltd. the company. The main drafters of this standard. Liu Zhe, Li Tongyi, Huang Jian, Wang Baiti, Lin Zhanghong, Peng Fudi, Wang Wei. Rigid polyvinyl chloride (PVC-U) pipes and Determination of polyvinyl chloride (PVC) content in pipe fittings Method based on total chlorine content

1 Scope

This standard specifies the method for determining the content of polyvinyl chloride (PVC) in unplasticized polyvinyl chloride (PVC-U) pipes and fittings based on the total chlorine content. This standard applies to hard PVC pipes and fittings. Note. For pipes and fittings containing other chlorine-containing components such as chlorinated polyvinyl chloride (PVC-C) or chlorinated polyethylene (CPE), the polyvinyl chloride measured by this method contains The amount may deviate from the actual value.

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 references, the latest version (including all amendments) applies to this document. GB/T 601-2016 Preparation of chemical reagent standard titration solution GB/T 9345.5-2010 Determination of ash content of plastics Part 5.Polyvinyl chloride

3 Principle

The sample is fully combusted in oxygen, and after the hydrogen chloride, the decomposition product of polyvinyl chloride, neutralizes with the lye, the chlorine is determined by potentiometric titration. content. Simultaneously determine the ash content of the sample. Calculate the polyvinyl chloride content in the sample based on the total chlorine content and ash content.

4 Reagents and materials

Unless otherwise specified, only use reagents and distilled or deionized water or equivalent purity water confirmed to be analytically pure in the analysis. 4.1 Nitric acid solution, c(HNO3)=2mol/L. 4.2 Silver nitrate standard titration solution, c(AgNO3)=0.1mol/L. The preparation and calibration of silver nitrate standard titration solution shall be prepared and calibrated according to 4.21 of GB/T 601-2016. 4.3 Sodium nitrate. 4.4 Potassium hydroxide solution, 10g/L. 4.5 Hydrogen peroxide solution, 300g/L. 4.6 Sulfuric acid, ρ=1.84g/mL. 4.7 Acetic acid, purity ≥99.5%. 4.8 Oxygen.

5 Equipment

5.1 Plastic crusher, the output particle size is 1mm~3mm. 5.2 Potentiometric titrator, equipped with silver electrode and calomel electrode.

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