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GB/T 3284-2015 English PDF

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Q: Should I purchase the latest version GB/T 3284-2015?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3284-2015 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$449.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3284-2015: Analytical method of the chemical composition in the quartz glass
Status: Valid

GB/T 3284: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3284-2015	449	Add to Cart	4 days	Analytical method of the chemical composition in the quartz glass	Valid
GB/T 3284-1993	559	Add to Cart	3 days	Analytical method of the chemical composition in the quartz glass	Obsolete

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Basic data

Standard ID: GB/T 3284-2015 (GB/T3284-2015)
Description (Translated English): Analytical method of the chemical composition in the quartz glass
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q35
Classification of International Standard: 81.040.30
Word Count Estimation: 21,283
Date of Issue: 2015-10-09
Date of Implementation: 2016-09-01
Older Standard (superseded by this standard): GB/T 3284-1993
Quoted Standard: GB/T 602; GB/T 6682
Regulation (derived from): National Standard Announcement 2015 No.31
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the basic requirements for the test quartz glass chemical analysis, sample preparation, methods and principles feeds, reagents and materials, equipment and facilities, the analysis step, the results of the calculation and presentation. This standard applies to raw quartz glass, quartz glass, and the chemical composition of products, quartz glass fiber and products analysis.

GB/T 3284-2015: Analytical method of the chemical composition in the quartz glass

---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.
Analytical method of the chemical composition in the quartz glass ICS 81.040.30 Q35 National Standards of People's Republic of China Replacing GB/T 3284-1993 Analytical method for chemical composition of quartz glass 2015-10-09 released 2016-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 3284-1993 "Quartz glass chemical composition analysis method". Compared with GB/T 3284-1993, except for editing The main technical changes are as follows. - modified scope (see Chapter 1, Chapter 1 of.1993); --- Added normative reference file guide (see Chapter 2); - increased the basic requirements of the test (see Chapter 3); - increased sample preparation (see Chapter 4); - modified amounts of burn loss and silica content (see Chapter 5, Edition 2.1.1); - the determination of titanium dioxide in low-expansion quartz glass was removed (2.1.2 of.1993); - modified emission spectra (see Chapter 6, Edition 2.2 of.1993); Modified graphite furnace atomic absorption spectroscopy (see Chapter 7,.1993, 2.3); - modified Flame Atomic Absorption Spectrometry (see Chapter 8, Edition 1.4 of.1993); - Added inductively coupled plasma emission spectroscopy (see Chapter 9). This standard is proposed by the China Building Materials Federation. This standard is nationalized by the National Industrial Glass and Special Glass Standardization Technical Committee (SAC/TC447). This standard is responsible for drafting units. China Building Materials Inspection and Certification Group Co., Ltd., China Building Materials Science Research Institute, Hubei Philippines Lihua Quartz Glass Co., Ltd. This standard participates in the drafting unit. Lianyungang Donghai County Hongwei Quartz Products Co., Ltd. The main drafters of this standard. Yang Xiaohui, Wu Jie, Yang Xuedong, Ouyang Baohua, Liu Junlong, Huang Li, Huang Yongliang, Wang Jingxia, Ding Jiaxing. This standard replaced the previous version of the standard release. GB 3284-1982, GB/T 3284-1993. Analytical method for chemical composition of quartz glass WARNING - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set forth in the relevant national regulations.

1 Scope

This standard specifies the basic requirements for the analysis of chemical composition of quartz glass, the preparation of samples, methods and principles, reagents and materials, instrument Equipment and equipment, analysis steps, results calculations and representations. This standard applies to quartz glass raw materials, quartz glass and products, quartz glass fiber and chemical composition analysis.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 602 Preparation of standard solutions for the determination of impurities in chemical reagents GB/T 6682 Analytical laboratory water specifications and test methods

3 basic requirements of the test

3.1 Water and reagents Unless otherwise stated, the reagents used in the analysis shall not be less than the analytical grade and the water used shall not be less than the secondary water specified in GB/T 6682 Claim. The degree of dilution of the reagent is expressed in terms of volume ratio, expressed as follows. --- "Dilution V1 → V2" means that the specific solution with volume V1 is diluted to the final volume of V2. --- "V1 V2" means that a specific solution of volume V1 is added to the solvent in volume V2. 3.2 constant volume After the first burning, cooling, weighing, repeated burning (each 20min), and then cooling, weighing, when the difference between the two consecutive weighing small At or equal to 0.0002g, that is constant. 3.3 Standard stock solution Before use should be constant temperature to 20 ℃ ± 2 ℃, and shake well. Unless otherwise specified, at room temperature (15 ℃ ~ 25 ℃), the shelf life in general Not more than two months, when there is turbidity, precipitation or color changes and other phenomena, should be re-prepared.

4 sample preparation

4.1 Reagents Hydrochloric acid (HCl). excellent grade pure, the mass fraction of 36% to 38%. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 3284-2015_English be delivered?

Answer: Upon your order, we will start to translate GB/T 3284-2015_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 3284-2015_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 3284-2015_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 GB/T 3284-2015?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3284-2015 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.