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GB/T 42276-2022 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 42276-2022: Determination of fluorine ion and chloride ion in silicon nitride powder - Ion chromatography method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42276-2022	199	Add to Cart	3 days	Determination of fluorine ion and chloride ion in silicon nitride powder - Ion chromatography method	Valid

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GB/T 14849.3 GB/T 14849.1 GB/T 38976 GB/T 14140 GB/T 42274

Basic data

Standard ID: GB/T 42276-2022 (GB/T42276-2022)
Description (Translated English): Determination of fluorine ion and chloride ion in silicon nitride powder - Ion chromatography method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H17
Classification of International Standard: 77.040
Word Count Estimation: 10,149
Date of Issue: 2022-12-30
Date of Implementation: 2023-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42276-2022: Determination of fluorine ion and chloride ion in silicon nitride powder - Ion chromatography method

---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.
ICS 77.040 CCSH17 National Standards of People's Republic of China Fluoride and chloride ions in silicon nitride powder Content Determination Ion Chromatography Posted on 2022-12-30 2023-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

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 for Standardization Documents" drafting. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is prepared by the National Semiconductor Equipment and Materials Standardization Technical Committee (SAC/TC203) and the National Semiconductor Equipment and Materials Standard It is jointly proposed and managed by the Materials Subcommittee (SAC/TC203/SC2) of the Chemical Technology Committee. This document is drafted by. Xinte Energy Co., Ltd., Xinjiang Jingshuo New Materials Co., Ltd., Metrohm China Co., Ltd., Jiangsu Safet Semiconductor Material Testing Technology Co., Ltd., Qingdao Shenghan Chromatography Technology Co., Ltd., Qingdao Puren Instrument Co., Ltd., non-ferrous metals Technical and Economic Research Institute Co., Ltd., Jiangsu Lianrui New Materials Co., Ltd., Qingdao Cixing New Materials Co., Ltd. The main drafters of this document. Yin Bo, Qiu Yanmei, Liu Guoxia, Huang Bin, Li Suqing, Zhang Jiwu, Song Bingxin, Lu Wenfeng, Wang Gang, Li Mei, Zhang Zhengxia, Wu Yingliang, Hou Qianhui, Wang Xiaojiao, Cao Jiakai, Gao Yukun, Cui Wei. Fluoride and chloride ions in silicon nitride powder Content Determination Ion Chromatography

1 Scope

This document describes an ion chromatographic method for the determination of fluoride and chloride ions in silicon nitride powders. This document is applicable to the determination of fluoride ion and chloride ion content in silicon nitride powder, and the test range is 0.0500mg/g~0.600mg/g.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 602 Preparation of Standard Solution for Determination of Impurities in Chemical Reagents GB/T 6682 Analytical laboratory water specifications and test methods GB/T 14666 Analytical Chemistry Terminology

3 Terms and Definitions

The terms and definitions defined in GB/T 14666 apply to this document.

4 Principles of the method

The silicon nitride powder sample is burned and hydrolyzed in the mixed flow of oxygen and water vapor, and the fluorine and chlorine in the silicon nitride are converted into volatile fluorides respectively. and chloride, and dissolved in water in the form of ions, and the content of fluoride and chloride ions in silicon nitride powder was determined by ion chromatography.

5 Interfering factors

5.1 If the sample weight is too large, it will cause insufficient combustion, which will affect the test results. It is recommended to weigh 0.100g sample. 5.2 The sample and quartz sand should be mixed evenly and laid flat in the porcelain ark, otherwise the test results will be affected. 5.3 If the oxygen flow rate is too large or too small, it will affect the combustion result. It is recommended to adjust the oxygen flow rate to 400mL/min. 5.4 The sealing of the combustion hydrolysis device should be good enough, otherwise the detection result will be low.

6 Test conditions

The temperature range is 20℃~25℃, and the relative humidity is not more than 55%.

7 Reagents and Materials

7.1 Water. Class II specified in GB/T 6682. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 42276-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 42276-2022_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 42276-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 42276-2022_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.