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The Bentonite formulation of national standards
Renew time2008-7-22
  

In order to further standardize and promote China's bentonite industry and the overall level of development, bentonite national standard project is declared by the China Non-metallic Minerals Industry Association and Jilin Siping Liufangzi Aska Bentonite Co., Ltd and is included in 2003 standard plan of the Standardization Administration (Plan No. 20032702 - T-609). Xianyang Non-metallic Minerals Research and Design Institute of Standards and Technology is the focal point, Zhejiang Walter Group Company, Jilin Siping LiuZhejiang Aska Bentonite Co., Ltd. Zhejiang FENG Hong clay Chemical Co., Ltd., Changxing Renheng bentonite limited and Jianping County of Liaoning Shahai Ping-hui town of Camp Chemical Co., Ltd are the standard drafting units, Zhejiang Walter Group Company is responsible for drafting units.

The first working meeting was held on January 10, 2006 in Beijing, the standard enaction group and the leadership of the drafting group was established. Followed by the standard investigation, a questionnaire survey on the existing standards and the actual implementation of the standards was conducted in industries and enterprises, users and the relevant units , focusing on manufacturing enterprises and users, part of a visit, retrieve the collection of international standards and standards of foreign enterprises.

Issued more than 50 questionnaires to the Bentonite manufacturers, the use of manufacturers, research and other experts in the survey, visited more than 30 users. Up to the end of May 2006, the total recovery to the questionnaire was Table 24, the registration form 21.

From the Feedback information of the questionnaire, lower standard, backward testing methods, difficult coordination  between industries , low rate of standard users, bentonite product testing methods out of line with the international, International standards of low-standard rate
are existing weaknesses for Bentonite products  .It is imminent to develop the Bentonite formulation of national standards

The second working session for Bentonite national standard enaction was held on 29 June 2006 in Hangzhou. Bentonite specialists, molding industry specialists , sinistering specialists and representatives from bentonite manufacturer were presented at the meeting. The system and frame on Bentonite national standard enaction were passed after discussion, including experiment items, testing method, advice&rules, packaging and transportation. The sample resources are finalized. The crude ore are mainly exploited from Liaoning, Hebei, Jilin, Sichuan, Zhejiang, Shandong, Xinjiang and Inner Mongolia; bentonite products are mainly from Liao Ning Volclay Dongming Industrial Minerals Co,. Ltd, Hebei Xuanhua Xuanzhi Bentonite Co., Ltd, Zhejiang Huate Group, Zhejiang Fenghong Clay Chemicals Co., Ltd, Inner Mongolia Ningcheng Tianyu Chemical Industry Co., Ltd, Jilin Siping Liufangzi Aska Bentonite Co., Ltd, Zhejiang Renheng Chemical Industry Co., Ltd , Xinjiang Xiazijie Bentonite Co., Ltd, Inner Mongolia Xinghe Coating Factory, Hebei Huaian Kunyin Chemical Industry Co., Ltd, and Jiang Xi Guangfeng Rongguang Non-metallic Mining Co., Ltd.
The session passed the experiment method, the undertaking units , besides the standard enaction units, include Liao Ning Volclay Dongming Industrial Minerals Co,. Ltd, Hebei Xuanhua Xuanzhi Bentonite Co., Ltd, Inner Mongolia Xinghe Coating Factory, Hebei Huaian Kunyin Chemical Industry Co., Ltd, and Jiang Xi Guangfeng Rongguang Non-metallic Mining Co., Ltd and Xianyang National Non-metallic Mining Products Supervision and Test Center

On 16 January 2007, The Third Working Session for Bentonite national standard enaction was held in Beijing. The manuscript for examination was passed at the session. The session concluded that this standard had met or exceeded national standard. Bentonite technical requirement and test method directly refers to the existing national standard and industrial standard, or applies ASTM and DIN standard; the implementation of experiment items and examination methods pertaining this standard is cost effective and easy to operate, which comply with industrial production and current application situation, and therefore enhance the implementation efficiency on the standard. In addition, suggestion and advice was put forward to partly amend the newly enacted standard, After amending, formal application for approval was submitted. Thus, efforts for Bentonite National Standard Enaction were preliminarily finished. This standard was promulgated on 22 June 2007 and was formally implemented on 1 January 2008 (Standard No.: GB/T2973-2007)

The enaction of Bentonite National Standard is beneficial to the normalization and instruction on the production and application for domestic scientific research units and relative units; in the mean time, it becomes the test basis for national testing authorities and provides technical assistance for customers to select the right product. The encaiton of this standard has put an end to the no-standard situation in bentonite field in China.
Remark: Jilin Liufangzi Bentonite Science and Technology Co., Ltd was initiated from Siping Liufangzi Aska Bentonite Co., Ltd.

 

 
 
 
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