GB/T 33069-2016 in English

VALID

Determination of 1一vinyl一2一pyrrolidinone homopolymer for industrial use

Issued on:2016-10-13
Implemented on:2017-05-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $220.00
$214.00

Standard No:	GB/T 33069-2016
Document status:	VALID
Title in English:	Determination of 1一vinyl一2一pyrrolidinone homopolymer for industrial use
Title in Chinese:	工业用聚N-乙烯基吡咯烷酮检测方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2016-10-13
Implemented on:	2017-05-01
ICS Classification:	71.080.80-Aldehydes and ketones
Chinese Classification:	G31-Basic standards and general methods for synthetic resin and plastic
Professional Classification:	GB-National Standard
Related Keywords:	industrial use introduction main technical requirements k value determination method industrial poly n-vinyl pyrrolidone industrial poly targeted detection methods iodine titration
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《GB/T 33069-2016工业用聚N-乙烯基吡咯烷酮检测方法》由TC15（全国塑料标准化技术委员会）归口，TC15SC11（全国塑料标准化技术委员会热固性塑料分会）执行，主管部门为中国石油和化学工业联合会。

Introduction

1. Standard foreword and background

GB/T33069-2016 "Test Method for Industrial Poly N-vinyl Pyrrolidone" is a national standard of the People's Republic of China, which was officially implemented on May 1, 2017. The standard is managed by the Thermosetting Plastics Sub-Technical Committee of the National Plastics Standardization Technical Committee and proposed by the China Petroleum and Chemical Industry Federation.

2. Comparison of standard frameworks

Standard dimensions	GB/T33069—2016	International reference standards	Main differences
Scope of application	Applicable to the detection of industrial poly (N-vinyl pyrrolidone) (PVP)	International standards mainly target general detection methods for polymer materials	Specific indicators and methods are unique
Detection indicators	K value, NVP residual monomer, moisture, solid content, pH value and sulfate ash	General indicators include mechanical properties and thermal stability	More targeted
Detection methods	Iodine titration, high performance liquid chromatography, etc.	Mainly rely on general laboratory analysis technology	Introduced industry-specific detection methods

3. Interpretation of main technical requirements

K value determination method: K value is an important indicator for measuring the relative molecular mass of PVP. The standard adopts the Ubbelohde viscometer method, and the K value is calculated by measuring the outflow time of the solution. This method is simple to operate and has accurate results.

Case analysis: NVP residual monomer detection

The determination of NVP residual monomer adopts two methods: iodine titration and high performance liquid chromatography. The iodine titration method calculates the residual monomer content by titrating excess iodine, while the HPLC method uses chromatographic separation technology to achieve precise quantification.

4. Implementation recommendations

Laboratory conditions: Ensure that specialized equipment such as Ubbelohde viscometer and HPLC are available.
Staff training: Testers must be familiar with standard operating procedures and instrument usage.
Quality control: It is recommended to calibrate the instrument regularly and perform blank tests to ensure data accuracy.

More samples: JGJ 94-2008 YD/T 3934-2021 NB/T 47013.2-2015

Sample only — not a preview of GB/T 33069-2016

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