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GB/T 37765-2019 English PDF

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US$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 37765-2019: Qualitative determination methods of asbestos in electrical and electronic products
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37765-2019	439	Add to Cart	4 days	Qualitative determination methods of asbestos in electrical and electronic products	Valid

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Basic data

Standard ID: GB/T 37765-2019 (GB/T37765-2019)
Description (Translated English): Qualitative determination methods of asbestos in electrical and electronic products
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L10
Classification of International Standard: 31.020
Word Count Estimation: 22,276
Date of Issue: 2019-06-04
Date of Implementation: 2020-01-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37765-2019: Qualitative determination methods of asbestos in electrical and electronic products

---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.
Qualitative determination methods of asbestos in electrical and electronic products ICS 31.020 L10 National Standards of People's Republic of China Qualitative detection method of asbestos in electronic and electrical products 2019-06-04 released 2020-01-01 Implementation State Administration for Market Regulation Issued by China National Standardization Administration

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed and managed by the National Environmental Standardization Technical Committee for Electrical and Electronic Products and Systems (SAC/TC297). Drafting organizations of this standard. China Academy of Inspection and Quarantine Sciences, China Test Testing and Certification Group Co., Ltd., Ministry of Industry and Information Technology Sub-Fifth Research Institute, Shanghai Optical Instrument First Factory, Jiangsu Entry-Exit Inspection and Quarantine Bureau of the People’s Republic of China, Guangdong Entry and Exit of the People’s Republic of China Border Inspection and Quarantine Bureau. The main drafters of this standard. Xiao Haiqing, Wang Hongwei, Li Junfang, Su Hongwei, Tao Ziqiang, Xia Defu, Zhao Yanke, Liu Deyong, Xi Guangcheng, Si Nianpeng, Fu Yanling, Bai Hong. Qualitative detection method of asbestos in electronic and electrical products Warning---Personnel using this standard should have practical experience in formal laboratory work. This standard does not point out all possible safety issues question. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated by relevant national laws and regulations.

1 Scope

This standard specifies the polarizing microscope-X-ray diffraction and scanning electron microscope-X-ray diffraction qualitative of asbestos in electronic and electrical products Detection method. This standard applies to the qualitative detection of asbestos in non-metallic materials of electronic and electrical products.

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 6682 Analytical laboratory water specifications and test methods GB/T 26572-2016 Limit requirements for restricted substances in electrical and electronic products

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Fiberparticle A particle with an aspect ratio greater than 3.1 with fibrous characteristics.

4 Principle

Asbestos exists in 6 forms. chrysotile, crocidolite, anthophyllite, amosite, tremolite and actinolite. Different types Asbestos, its shape, polarized light refractive index, color and other properties are different, and the characteristic peaks of X-ray diffraction are also different. Based on this, it can be qualitatively detected that the sample is Whether asbestos is found. The polarizing microscope method in the analysis judges whether asbestos is detected based on the shape of the sample and the change in the color of the sample's refractive index. The X-ray diffraction analysis method in the analysis is that when X-rays are irradiated on asbestos, each asbestos has its own characteristic peak. A characteristic peak is used to determine whether there is asbestos in the sample.

5 Reagents and materials

5.1 Asbestos standard samples. chrysotile asbestos, crocidolite, anthophyllite asbestos, amosite, tremolite and actinolite asbestos. 5.2 Refractive index oil (immersion oil). a) chrysotile asbestos immersion oil refractive index n25D=1.550; b) crocidolite immersion oil refractive index = n25D1.700; c) amosite immersion oil Oil refractive index n25D =1.670 or 1.680; d) Anthophyllite and tremolite immersion oil refractive index n25D =1.605; e) Actinolite immersion oil refractive index n25D=1.640 or 1.630. 5.3 Water. Grade 3 water specified in GB/T 6682. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 37765-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 37765-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 37765-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 37765-2019_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.