GB/T 12005.2-2026Polyacrylamide - Part 2: Determination of properties (English PDF)

3 Terms and definitions

4 Determination of the performance

5 Test report

6 Expression of the results

7 Permissible difference

Foreword

This document is drafted in accordance with the rules given in GB/T 1.1-2020, Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.

This document is Part 2 of GB/T 12005, Polyacrylamide. The following parts of GB/T 12005 have been published:

- Part 2: Determination of properties;

- Part 3: General product properties.

This document replaces GB/T 12005.1-1989, Method for the determination of intrinsic viscosity number of polyacrylamide; GB/T 12005.2-1989, Method for the determination of solid content of polyacrylamide; GB/T 12005.6-1989, Method for the determination of degree of hydrolysis of partially hydrolysed polyacrylamide; GB/T 12005.7-1989, Method for the determination of particle size of powdered polyacrylamide; GB/T 12005.8-1989, Method for the determination of dissolution rate of powdered polyacrylamide; and GB/T 12005.10-1992, Determination of molecular weight of polyacrylamide - Viscosity method. This document is based mainly on GB/T 12005.2-1989 and integrates the content of GB/T 12005.1-1989, GB/T 12005.6-1989, GB/T 12005.7-1989, GB/T 12005.8-1989 and GB/T 12005.10-1992. Compared with GB/T 12005.2-1989, apart from structural adjustments and editorial changes, the main technical changes are as follows:

- the content of the scope has been changed (see Clause 1; Clause 1 of the 1989 edition);

- the following have been added: inspection of appearance (see 4.2), determination of intrinsic viscosity and viscosity-average molecular weight (see 4.3 and Annex A), determination of ionicity (see 4.4 and Annex B), determination of particle size (see 4.5 and Annex C), determination of residual acrylamide content (see 4.7 and Annex E), determination of dissolution rate (see 4.8 and Annex F) and determination of water-insoluble matter (see 4.9 and Annex G);

- the apparatus requirements in the test method for solid content have been changed (see D.2.3; 4.5 of the 1989 edition);

- the drying temperature and time in the test method for solid content have been changed (see D.3.1; 5.1 of the 1989 edition);

- the gel-type sample in the test method for solid content has been deleted (see 5.2 of the 1989 edition);

- an electronic weighing drying method has been added (see D.3.2).

Attention is drawn to the possibility that some elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.

This document was proposed by the China Petroleum and Chemical Industry Federation.

This document is under the jurisdiction of the National Technical Committee on Plastics of Standardization Administration of China (SAC/TC 15).

Drafting organisations: Zhonglan Chenguang Chengdu Testing Technology Co., Ltd.; PetroChina Company Limited Daqing Refining and Chemical Branch; SNF (China) Flocculant Co., Ltd.; Shanghai Yuang Water-based New Material Technology Co., Ltd.; Anhui Jucheng Fine Chemical Co., Ltd.; Shandong Huayou Wanda Chemical Co., Ltd.; Shandong Nuoer Biological Technology Co., Ltd.; Heilongjiang Jidi Oilfield Service Co., Ltd.; Sichuan Weiwodun Petroleum Technology Co., Ltd.; Jining Nantian Agricultural Chemical Co., Ltd.; Dongying Baomo Environmental Engineering Co., Ltd.; Henan Zhengjia Energy Environmental Protection Co., Ltd.; Shaanxi Rixin Petrochemical Co., Ltd.; Chongqing Lanjie Guangshun Water Purification Material Co., Ltd.; Guangdong Shouxin Environmental Protection Material Technology Co., Ltd.; Guangdong Yuehai Water Testing Technology Co., Ltd.; Karamay Zhengcheng Co., Ltd.; Xinmi Wanli Industrial Development Co., Ltd.; Sichuan Shenhe New Material Technology Co., Ltd.; Guangrao Liuhe Chemical Co., Ltd.; Xi'an Wande Energy Chemical Co., Ltd.; Shandong Juxing Petroleum Technology Co., Ltd.; Shengli Oilfield Fangyuan Chemical Co., Ltd.; Fushun Xinlong Chemical Co., Ltd.; Henan Yiqun Environmental Protection Technology Co., Ltd.; Dongying Zhongyue Petroleum Technology Co., Ltd.

Main drafters: Bai Junwei, Guo Changhong, Ling Jing, Wang Yu, Zhao Yingying, Xie Fengming, Liu Jinbao, Chen Lili, Pan Zheng, Ma Chaoqiang, Fan Guichen, Yang Lihua, Liu Juan, Zhu Ningkui, Ma Pu, Zhang Hongsong, Wang Zhongqi, Yuan Chao, Wu Qiang, Liu Zongtang, Lu Baoguang, Cao Jinyuan, Wang Wanli, Yan Xiangyang, Zhang Mingjun, Yang Yani, Wang Haidao, Zhu Zengyan, Chen Zhan, Wang Peng, Li Yan, Peng Yiyun, Han Qingjian.

Release history of this document and of the documents it replaces:

- first published in 1989 as GB/T 12005.2-1989, Method for the determination of solid content of polyacrylamide;

- this is the first revision, incorporating GB/T 12005.1-1989, Method for the determination of intrinsic viscosity number of polyacrylamide (release history of GB/T 12005.1-1989: GB/T 12005.1-1989), GB/T 12005.6-1989, Method for the determination of degree of hydrolysis of partially hydrolysed polyacrylamide (release history: GB/T 12005.6-1989), GB/T 12005.7-1989, Method for the determination of particle size of powdered polyacrylamide (release history: GB/T 12005.7-1989), GB/T 12005.8-1989, Method for the determination of dissolution rate of powdered polyacrylamide (release history: GB/T 12005.8-1989) and GB/T 12005.10-1992, Determination of molecular weight of polyacrylamide - Viscosity method (release history: GB/T 12005.10-1992).