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GB/T 29874-2013 English PDF

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US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 29874-2013: Plastics -- Homopolymer and copolymer resins of vinyl chloride -- Determination of residual vinyl chloride monomer by gas-chromatographic analysis of dry powder
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29874-2013	259	Add to Cart	3 days	Plastics -- Homopolymer and copolymer resins of vinyl chloride -- Determination of residual vinyl chloride monomer by gas-chromatographic analysis of dry powder	Valid

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Basic data

Standard ID: GB/T 29874-2013 (GB/T29874-2013)
Description (Translated English): Plastics -- Homopolymer and copolymer resins of vinyl chloride -- Determination of residual vinyl chloride monomer by gas-chromatographic analysis of dry powder
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G32
Classification of International Standard: 83.080.20
Word Count Estimation: 11,183
Quoted Standard: GB/T 2035
Adopted Standard: ISO 24538-2008; MOD
Regulation (derived from): National Standards Bulletin No. 22 of 2013
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
Summary: This standard specifies: Vinyl chloride homopolymer and copolymer resins of residual vinyl chloride monomer determination. The method is based on static headspace gas chromatography technique (ie, at constant temperature and solid analysis of equilibrium

GB/T 29874-2013: Plastics -- Homopolymer and copolymer resins of vinyl chloride -- Determination of residual vinyl chloride monomer by gas-chromatographic analysis of dry powder

---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.
Plastics. Homopolymer and copolymer resins of vinyl chloride. Determination of residual vinyl chloride monomer by gas-chromatographic analysis of dry powder ICS 83.080.20 G32 National Standards of People's Republic of China Plastics - Vinyl chloride homopolymer and copolymer resins Gas chromatography dry powder Determination of residual vinyl chloride monomer (ISO 24538.2008, MOD) Issued on. 2013-11-12 2014-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard uses redrafted modification method using ISO 24538.2008 "Plastics - Vinyl chloride homopolymer and copolymer resins by gas chromatography Determination of dry residual vinyl chloride monomer. " 2008 compared to the presence of structural changes, listed in Appendix B of this standard and ISO 24538.. This standard and ISO 24538 2008 reg series No change control list. This standard and ISO 24538.2008 technical differences and for the following reasons. --- Remove the "scope" in the chapter "Notes" and its contents; --- In order to meet our technical conditions to equivalent international standards of GB/T 2035 instead of ISO 472; --- Added "5.3 Thermostats", provides precision temperature control, to ensure the accuracy of detection; --- Increasing the accuracy of 0.01g balance requirements; --- In the "Methods" section adds "In the arbitration method A method" regulation, improve the detection result of the determination of operability, to avoid disputes. For ease of use, this standard made the following editorial changes. --- In "μg/g" instead of "mg/kg" as the residual vinyl chloride resin powder units; --- Added Appendix B (informative). The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee of plastic PVC resin product Club (SAC/TC15/SC7) centralized. This standard was drafted. Hangzhou Electrochemical Group Co., Ltd., Xinjiang Zhongtai Chemical Co., Jinxi Chemical Industry Research Institute Co., Friends of Tangshan chlor-alkali limited liability company. The main drafters of this standard. Tan Chen, Wang Jianying, Yang Qiu Shi, Liang Bin, Pangsu Fang, Chenpei Yun. Plastics - Vinyl chloride homopolymer and copolymer resins Gas chromatography dry powder Determination of residual vinyl chloride monomer Warning. Use of this standard should have practical experience in regular laboratory work. This standard does not point out all possible security asked question. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

This standard specifies the vinyl chloride homopolymer and copolymer resins of vinyl chloride Determination of residual monomers. The method is based on static headspace gas chromatography (ie analysis at a constant temperature of the gas phase and solid phase equilibrium) for a variety of powdered chlorine Ethylene homopolymer and copolymer resins. Composite materials, pellets, extrudates, films residual vinyl chloride monomer GB/T 4615 were measured.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 2035 plastic terms and their definitions (GB/T 2035-2008, ISO 472.1999, IDT)

3 Terms and Definitions

Terms and definitions GB/T 2035, as defined in applicable to this document. Principle 4 The sample was weighed in a glass vial sealed and heated some time to make vinyl chloride monomer (VCM) in the powder and the gas phase reaches balance. Obtained from headspace gas sample was injected into a gas chromatograph, for example, by automatic injection. Flame ionization by fractionation in the column Detector.

5 Apparatus and materials

5.1 Gas chromatograph, with a fixed headspace autosampler or manual injection device. It should be selected to make VCM and impurities completely separate chromatography Column and conditions. Note. See Appendix A. Suitable column 5.2 flame ionization detector (FID). 5.3 thermostat can be controlled at (120 ± 2) ℃. 5.4 glass vials, A common method of volume of (22 ± 0.5) mL, Method B was (10 ± 0.2) mL, with PTFE lined silicone rubber Or butyl pads and aluminum caps, pads should not produce VCM can interfere with the determination of the peak. 5.5 rolled and hat tool for sealing and restart glass vials. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 29874-2013_English be delivered?

Answer: Upon your order, we will start to translate GB/T 29874-2013_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 29874-2013_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 29874-2013_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.