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GB/T 8763-2020 English PDF

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Q: Should I purchase the latest version GB/T 8763-2020?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 8763-2020 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$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 8763-2020: Test methods for gas absorption characteristic of non-evaporation gettering materials and products
Status: Valid

GB/T 8763: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8763-2020	189	Add to Cart	3 days	Test methods for gas absorption characteristic of non-evaporation gettering materials and products	Valid
GB/T 8763-1988	199	Add to Cart	2 days	Test methods of gas absorption characteristic for non-evaporation gettering materials and products	Obsolete

Similar standards

GB/T 8753.1 GB/T 5163 GB/T 8753.4 GB/T 8760

Basic data

Standard ID: GB/T 8763-2020 (GB/T8763-2020)
Description (Translated English): Test methods for gas absorption characteristic of non-evaporation gettering materials and products
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H21
Classification of International Standard: 77.120.99
Word Count Estimation: 10,192
Date of Issue: 2020-06-02
Date of Implementation: 2021-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 8763-2020: Test methods for gas absorption characteristic of non-evaporation gettering materials and 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.
(Method for testing inspiratory performance of non-evaporable absorbent materials and products) ICS 77.120.99 H21 National Standards of People's Republic of China Replace GB/T 8763-1988 Non-evaporable getter materials and products Inspiratory performance test method 2020-06-02 release 2021-04-01 Implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 8763-1988 "Non-evaporable getter materials and products test method for getter performance". This standard and Compared with GB/T 8763-1988, except for editorial changes, the main technical changes are as follows. --- Modified the content of the scope (see Chapter 1, the first paragraph of the 1988 edition); --- Added normative references (see Chapter 2); --- Added terms and definitions (see Chapter 3); --- Modified the content of the principle (see Chapter 4, Chapter 1 of the 1988 edition); --- The purity of carbon monoxide gas was changed from "99.5%" to "purity not less than 99.99%" (see Chapter 3 of 5.3, 1988 edition); --- Modified the requirements of the vacuum system (see 6.1, 2.1 in the 1988 edition); ---Ultra-high vacuum measurement range is modified from "10-2Pa~10-8Pa" to "1×10-1Pa~5×10-8Pa" (see 6.4, 1988 edition 2.4); --- Modified the sample heating method (see 6.5, 2.5 in the 1988 edition); ---The heating rate is changed from "1℃/s, 1.5℃/s, 3℃/s optional" to "1℃/s~3℃/s" (see 6.5, 1988 edition) 2.5); --- Deleted the pressure automatic control system (see 1988 version 2.6); --- Modified strip sample requirements (see 7.1.1, 4.1 in 1988 edition); --- Added infrared temperature measurement samples (see 7.1.2); --- Modified the test preparation (see 8.1, 5.1 in 1988 edition); --- Added test report (see Chapter 10). This standard was proposed by China Nonferrous Metals Industry Association. This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). This standard was drafted by. Youyan Engineering Technology Research Institute Co., Ltd., Guohebao Titanium Zirconium Co., Ltd. Technology Development Center Co., Ltd. and Guohe General Test Evaluation and Certification Co., Ltd. The main drafters of this standard. Xu Xiaoqiang, Zhang Yan, Guo Deyu, Yang Zhimin, Luo Yuanhui, Wang Chenyang, Lv Baoguo, Yang Yin. The previous versions of the standard replaced by this standard are as follows. ---GB/T 8763-1988. Non-evaporable getter materials and products Inspiratory performance test method

1 Scope

This standard specifies zirconium-aluminum alloy powder for vacuum devices, zirconium-aluminum alloy rings and sheets for gettering, zirconium-aluminum alloy composite strip for gettering, release Inspiratory velocity of non-evaporable getter materials and products such as titanium mercury-zirconium aluminum alloy composite strip for mercury gettering, zirconium graphite materials and products for room temperature gettering Test methods for rate and inspiratory volume, processing of test results and test reports. This standard applies to zirconium-aluminum alloy powder for vacuum devices, zirconium-aluminum alloy rings and sheets for gettering, zirconium-aluminum alloy composite strips for gettering, release Inspiratory velocity of non-evaporable getter materials and products such as titanium mercury-zirconium aluminum alloy composite strip for mercury gettering, zirconium graphite materials and products for room temperature gettering Determination of rate and inspiratory volume.

2 Normative references

The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 4314 getter terminology GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values

3 Terms and definitions

The terms and definitions defined in GB/T 4314 apply to this document.

4 Principle

When the test vacuum system is in the state of molecular flow, the gas flows through the conductance element of known conductance. There is a pressure difference across the flow conducting element. Adopt "constant pressure method", constant pressure at one end, test the change value of pressure at the other end with time, through calculation The inspiratory rate and inspiratory volume can be derived.

5 Materials

5.1 Hydrogen (volume fraction is not less than 99.999%). 5.2 Nitrogen (volume fraction is not less than 99.999%). 5.3 Carbon monoxide (volume fraction is not less than 99.99%).

6 Instruments

6.1 The vacuum system as shown in Figure 1 should meet the following requirements. ---Vacuum ball diameter 100mm~160mm; --- The conductance value of the conductance element should be selected so that when the intake chamber has the maximum inhalation rate, the test gas still passes through the conductance in the state of molecular flow ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 8763-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 8763-2020_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 8763-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 8763-2020_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 8763-2020?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 8763-2020 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.