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GB/T 41708-2022 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 41708-2022: Test method for resistivity of glass melts
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41708-2022	189	Add to Cart	3 days	Test method for resistivity of glass melts	Valid

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Basic data

Standard ID: GB/T 41708-2022 (GB/T41708-2022)
Description (Translated English): Test method for resistivity of glass melts
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q34
Classification of International Standard: 81.040.01
Word Count Estimation: 10,194
Date of Issue: 2022-10-14
Date of Implementation: 2023-02-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41708-2022: Test method for resistivity of glass melts

---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.
Test method for resistivity of glass melts ICS 81.040.01 CCSQ34 National Standards of People's Republic of China Test method for resistivity of glass melts Published on 2022-10-12 2023-02-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Building Materials Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Industrial Glass and Special Glass (SAC/TC447). This document is drafted by. Beijing University of Technology, Rainbow Display Co., Ltd., Bengbu Zhongguang Technology Co., Ltd., Suzhou Xinwu Photoelectric Technology Co., Ltd., Bengbu City Product Quality Supervision and Inspection Institute, Hebei Window Glass Co., Ltd., Kelisi Material Technology Co., Ltd. Company, Wuhu Dongxu Photoelectric Technology Co., Ltd., Hebei CSG Glass Co., Ltd., Shandong Lehejia Daily Necessities Co., Ltd., Shenzhen Skyworth Optical Science Technology Co., Ltd., China National Testing and Testing Holding Group Co., Ltd., Beijing Zhongtian Biaoke Standardization Technology Research Institute Co., Ltd., Guizhou Province Building Materials Product Quality Inspection and Testing Institute, Jining City Product Quality Supervision and Inspection Institute, Beijing Xuhui Xinrui Technology Co., Ltd. The main drafters of this document. Tian Yingliang, Li Miao, Zhang Chong, Xu Lihua, Cao Zhiqiang, Yu Yi, Chen Min, Li Qing, Zhang Guangdong, Bai Guangshan, Li Hai'e, Wang Jianjun, Li Yantao, Wu Linyu, Wang Changjun, Hong Lixin, Wang Huiyong, Li Junjie, Shi Zhiqiang, Xu Zhengben, Xu Yongbin, Mao Linshan, Zhao Zhiyong, Xu Yanyun, Guo Xiangru, Li Zhen, Wang Di, Dong Xuanjiang, Lun Xiaoyu. Test method for resistivity of glass melts

1 Scope

This document specifies the measurement principle, equipment and auxiliary tools, sample preparation, test procedures, test results for glass melt resistivity measurement Fruit processing and test reports. This document applies to glass resistivity measurements in the melt state.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 5432 Glass Density Determination Buoyancy Method GB/T 6005 Test sieve wire mesh, perforated plate and basic size of electroformed sheet mesh GB/T 11446.1 Electronic Grade Water GB/T 12804 Laboratory glass instrument measuring cylinder GB/T 13560 Sintered NdFeB Permanent Magnet Materials GB/T 15724 Laboratory Glass Instrument Beakers GB/T 21389 Verniers, Band Meters and Digital Calipers GB/T 26497 Electronic balance GB/T 30429 Industrial Thermocouple GB/T 39797 Glass melt surface tension test method Sessile drop method

3 Terms and Definitions

The terms and definitions defined in GB/T 39797 and the following apply to this document. 3.1 The glass is heated to a high temperature melt state as the starting point of the test, and the temperature is continuously lowered at a certain rate to the end point of the low temperature test.

4 Measuring principle

Based on Ohm's law, a high-temperature insulating container and high-temperature-resistant electrodes and wires are used to form a measurement circuit (see Figure 1). add glass sample Heat to the melt, apply an AC voltage to the glass melt, measure the current flowing through the glass melt, and obtain the resistance value of the glass melt, see formula (1), combined with the glass melt. The glass melt resistivity can be obtained from the cross-sectional area and length of the glass melt, as shown in formula (2). R=U/I (1) ρ=(R×S)/L (2) where. R --- glass melt resistance, in ohms (Ω); ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 41708-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 41708-2022_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 41708-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 41708-2022_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.