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YS/T 987-2021 English PDF

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Q: Should I purchase the latest version YS/T 987-2021?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 987-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$219.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 987-2021: (Determination of carbon content in chlorosilanes by gas chromatography-mass spectrometry)
Status: Valid

YS/T 987: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 987-2021	219	Add to Cart	3 days	(Determination of carbon content in chlorosilanes by gas chromatography-mass spectrometry)	Valid
YS/T 987-2014	359	Add to Cart	3 days	Test method for measuring carbon containing compound in chlorosilane. Determination of methyldichlorosilane	Obsolete

Similar standards

GB/T 14849.3 GB/T 14849.1 GB/T 37385 YS/T 981.1 YS/T 981.2 YS/T 980

Basic data

Standard ID: YS/T 987-2021 (YS/T987-2021)
Description (Translated English): (Determination of carbon content in chlorosilanes by gas chromatography-mass spectrometry)
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H17
Word Count Estimation: 9,940
Issuing agency(ies): Ministry of Industry and Information Technology

YS/T 987-2014: Test method for measuring carbon containing compound in chlorosilane. Determination of methyldichlorosilane

---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 measuring carbon containing compound in chlorosilane.Determination of methyldichlorosilane ICS 77.040.30 H17 People's Republic of China Nonferrous Metals Industry Standard Determination of carbon impurities in the chlorosilane Determination of silicon hydrogen methyldichlorosilane Issued on. 2014-10-14 2015-04-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard is drafted by. Sichuan Xinguang Silicon Technology Co., Ltd. Participated in the drafting of this standard. Leshan Electric Tianwei Silicon Technology Co., Ltd., Dongfang Electric Group Emei Semiconductor Materials Co., SECRETARY Shaanxi Tianhong Silicon Material Co., Ltd., Luoyang Sino-silicon High-tech Co., Nanjing Germanium Technology Co., Ltd., the new special energy stocks Limited copies. The main drafters of this standard. Ao Xiping, Wang Bo, Huang Diovan, Liang Hong, Liu Chang, Yao Shu, Jing Fan, Yangyan Fen, silver wave, Huang Bin. Determination of carbon impurities in the chlorosilane Determination of silicon hydrogen methyldichlorosilane

1 Scope

This standard specifies the method for the determination of carbon impurities in the chlorosilane, including determination of trichlorosilane methyldichlorosilane hydrogen silicon and silicon tetrachloride Determination of methyldichlorosilane hydrogen silicon. This standard applies to the determination of silicon measured trichlorosilane hydrogen methyldichlorosilane silicon tetrachloride and methyl dichloro hydrogen in silicon. Trichlorosilane, four Detection range of silicon tetrachloride silicon hydrogen methyldichlorosilane are from 0.00001% to 1.00%.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 4844.3 high purity helium

3 PRINCIPLE OF THE METHOD

This standard uses of 1,2-dichloroethane as an internal standard, using gas chromatography - Determination of trichlorosilane and silicon tetrachloride mass spectrometer (GC-MS) Methyldichlorosilane hydrogen content of silicon. Gas chromatography - mass spectrometry polar capillary column through the body and carbon trichlorosilane or silicon tetrachloride Separated impurities, to determine its retention time. The use of purge gas chromatography trichlorosilane or silicon tetrachloride after the main discharge, carbon hybrid Substance introduction mass spectrometers. Gas chromatography - mass spectrometry qualitative mode sample trichlorosilane and silicon tetrachloride carbon impurities in full Scan analysis, only found in the presence of hydrogen methyldichlorosilane silicon ion peak of this standard, mainly trichlorosilane or silicon tetrachloride methyldichlorosilane Hydrosilicon analysis.

4 Reagents and materials

Unless otherwise indicated, the use of reagents or materials comply with national standards of analysis. 4.1 Helium, shall comply with the provisions of GB/T 4844.3 of. 4.2 methyldichlorosilane hydrogen silicon, chromatography. 4.3 1,2-dichloroethane, chromatography. 4.4 n-octane, chromatography. 4.5 trichlorosilane, pure spectrum. 4.6 silicon tetrachloride, pure spectrum.

5 instruments and equipment

5.1 Gas chromatography - mass spectrometry Under optimum working conditions for those who can reach the following indicators can be used. a) each of the temperature control gas chromatography. temperature range better than 20 ℃ ~ 300 ℃; ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YS/T 987-2021_English be delivered?

Answer: Upon your order, we will start to translate YS/T 987-2021_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 YS/T 987-2021_English with my colleagues?

Answer: Yes. The purchased PDF of YS/T 987-2021_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.

Question 5: Should I purchase the latest version YS/T 987-2021?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 987-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.