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GB/T 39706-2020 English PDF

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US$149.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 39706-2020: Test method for dissolution rate and quantity of SO42- released from gypsum
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39706-2020	149	Add to Cart	3 days	Test method for dissolution rate and quantity of SO42- released from gypsum	Valid

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Basic data

Standard ID: GB/T 39706-2020 (GB/T39706-2020)
Description (Translated English): Test method for dissolution rate and quantity of SO42- released from gypsum
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q11
Classification of International Standard: 91.100.10
Word Count Estimation: 8,878
Date of Issue: 2020-12-14
Date of Implementation: 2021-11-01
Quoted Standard: GB/T 1345; GB/T 2007.1; GB/T 6682; GB/T 8170; GB/T 12573
Regulation (derived from): National Standard Announcement No. 28 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the determination method for the dissolution rate and amount of S0[4]^(2-) in gypsum. This standard applies to the determination of the dissolution rate and amount of natural gypsum and industrial by-product gypsum within 3 min.

GB/T 39706-2020: Test method for dissolution rate and quantity of SO42- released from gypsum

---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 method of SO42- dissolution rate and dissolution amount in gypsum) ICS 91:100:10 Q11 National Standards of People's Republic of China Determination method of SO42- dissolution rate and dissolution amount in gypsum 2020-12-14 release 2021-11-01 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: This standard was proposed by the China Building Materials Federation: This standard is under the jurisdiction of the National Cement Standardization Technical Committee (SAC/TC184): Drafting organizations of this standard: China Building Materials Research Institute Co:, Ltd:, China Communications Construction Hongfeng Group Co:, Ltd:, China Seventeenth Metallurgical Group Group Co:, Ltd:, China Railway 22nd Bureau Group Third Engineering Co:, Ltd:, Yangjiang Dadi Environmental Protection Building Material Co:, Ltd:, Shenzhen Water Works Inspection Testing Co:, Ltd:, China Railway Inspection and Certification Center Co:, Ltd:, Guizhou Zhuowei Environmental Protection Material Technology Co:, Ltd:, Shandong Precision Product Quality Testing Co:, Ltd:, China Water Resources and Hydropower Fourth Engineering Bureau Co:, Ltd:, Sinochem Chongqing Fuling Chemical Co:, Ltd:, Xinjiang Uygur Autonomous Region product quality Supervision, Inspection and Research Institute, Bengbu Product Quality Supervision and Inspection Institute, CCCC North Engineering Co:, Ltd:, China Academy of Railway Sciences Group Co:, Ltd: Railway Construction Research Institute, Hubei Jianke International Engineering Co:, Ltd:, Chiping Xinyuan Environmental Protection Building Material Co:, Ltd:, China Construction Southwest Survey and Design Research Institute Co:, Ltd:, Hunan Xiangjian Inspection Co:, Ltd:, Hebei Tieyuan Technology Development Co:, Ltd:, Inner Mongolia Yuntian Chemical Co:, Ltd:, Chongqing Muchuan Gypsum Building Material Co:, Ltd:, Chongqing Construction Engineering Municipal Traffic Engineering Co:, Ltd:, Jiangsu Changdian Environmental Protection Technology Co:, Ltd: Company, Zhuzhou Hongxin Technology Development Co:, Ltd:, Shandong Lubei Enterprise Group Corporation, Wuhai Energy Conservation Monitoring and Testing Center, China Construction Xinjiang Construction Engineering (Group) Co:, Ltd: The main drafters of this standard: Wei Liying, Liu Chen, Qian Yuandi, Cai Huiping, Liu Side, Cai Zhiyue, Yin Wanyun, Tang Qingwen, Zou Desong, Liang Kunyue, Huang Minrong, Yu Yanwei, Li Yansheng, Huang Xing, Li Hongyi, Zhou Panli, Ning Jirong, Zhang Le, Wu Huiyong, Wang Baofa, Hu Manchuan, Zhao Peihao, Huang Zengcai, Liu Danna, Wang Chaosheng, Yang Lu, Hu Yangsheng, Wu Jiao, Song Shixia, Zhou Qijian, Yang Bo, Gao Zhuo, Li Chonggui, Dong Xianhua, Hu Jianbo, Xu Hongfei, Deng Chenghong, Lu Tianbao, Wang Haijun, Pan Changhe, Zheng Xu, Wen Peiyan: Determination method of SO42- dissolution rate and dissolution amount in gypsum

1 Scope

This standard specifies the determination method of SO42- dissolution rate and dissolution amount in gypsum: This standard is applicable to the determination of SO42- dissolution rate and amount of natural gypsum and industrial by-product gypsum within 3 minutes:

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 1345 Cement Fineness Inspection Method Sieve Analysis Method GB/T 2007:1 General Rules for Sampling and Sample Preparation of Bulk Mineral Products Manual Sampling Method GB/T 6682 Analytical laboratory water specifications and test methods GB/T 8170 Numerical rounding rules and the expression and determination of limit values GB/T 12573 Cement sampling method

3 Terms and definitions

The following terms and definitions apply to this document: 3:1 Receivedbase Based on the gypsum in the received state, it contains attached water and crystal water: 3:2 Driedbase Take the gypsum that removes the attached water as the benchmark, that is, the state when the gypsum sample is dried to a constant weight at (45±3)℃: 3:3 Dissolution rate The amount of SO42-dissolution per unit time of gypsum sample at 25:0℃: 3:4 Dissolution quantity The concentration of SO42- in gypsum solution at 25:0℃ represents the amount of SO42- dissolved in gypsum:

4 Method summary

The dissolution amount of gypsum in the early 3min has a great influence on cement performance: Dissolve 0:3g dry base gypsum sample at 25:0℃ In 100 mL of distilled water, gypsum cannot be completely dissolved within 3 minutes, and the concentration of SO42- in different gypsum solutions can be reflected within 3 minutes The dissolution characteristics of gypsum samples, and to a certain extent predict the influence of gypsum dissolution on the early performance of cement: General solution analysis Method for rapid determination: This standard calculates the SO42-concentration in the solution by measuring the conductivity of the gypsum suspension at different times within 3 minutes: The degree is the amount of SO42- dissolution in gypsum, and the dissolution rate of SO42- in gypsum is obtained: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 39706-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 39706-2020_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 39706-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 39706-2020_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.