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GB/T 40961-2021 English PDF

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US$319.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 40961-2021: Calibration methods of rock triaxial testing apparatus
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 40961-2021	319	Add to Cart	3 days	Calibration methods of rock triaxial testing apparatus	Valid

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Basic data

Standard ID: GB/T 40961-2021 (GB/T40961-2021)
Description (Translated English): Calibration methods of rock triaxial testing apparatus
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: P55
Word Count Estimation: 17,163
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 40961-2021: Calibration methods of rock triaxial testing apparatus

---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.
Calibration methods of rock triaxial testing apparatus ICS 27.140 CCSP55 National Standards of People's Republic of China Calibration method of rock triaxial tester Released on 2021-11-26 2022-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Check performance 2 4.1 Loading device 2 4.2 Load indicating device 2 4.3 Extensometer 2 5 Calibration method 2 5.1 Calibration equipment 2 5.2 Checking environmental conditions 3 5.3 Check before calibration 3 5.4 Loading device verification 3 5.5 Check of load indicating device 3 5.6 Extensometer calibration 5 6 Calibration results and calibration cycle 5 6.1 Check result 5 6.2 Calibration cycle 5 Appendix A (informative) Commonly used symbols, units and instructions for calibration of rock triaxial tester 6 Appendix B (Informative) Verification record format of rock triaxial tester 7 Appendix C (informative) The format of the calibration certificate of the rock triaxial tester and the format of the calibration result notice 9

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 of Standardization Documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed and managed by the Ministry of Water Resources of the People's Republic of China. Drafting organizations of this document. Yangtze River Water Resources Commission, Yangtze River Academy of Sciences, Wuhan Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan University of Technology, Chengdu Dudonghua Zhuoyue Technology Co., Ltd., Changchun Pingce Test Instrument Co., Ltd. The main drafters of this document. Zhu Jiebing, Wu Aiqing, Zhou Hui, Zhang Guang, Guo Guoqing, Wang Bin, Zheng Yun, Liu Xiaohong, Wang Xin. Calibration method of rock triaxial tester

1 Scope

This document describes the calibration performance, calibration method, calibration result and calibration cycle of the rock triaxial tester. This document is applicable to rocks with an axial rated load of 500kN~5000kN and a lateral rated load of 20MPa~150MPa. Shaft tester calibration. Refer to the calibration of the rock triaxial creep tester.

2 Normative references

The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations 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 2611-2007 General technical requirements for testing machines GB/T 36416.1 Testing Machine Vocabulary Part 1.Material Testing Machine JJF1096 Extensometer Calibrator Calibration Specification JJG762 Extensometer

3 Terms and definitions

The following terms and definitions defined in GB/T 36416.1 apply to this document. 3.1 Rock triaxial testing apparatus rocktriaxial testingapparatus Triaxial instrument A testing machine for testing the strength and deformation characteristics of rock specimens under the three-dimensional stress state of equal lateral pressure (σ2=σ3). Note. Consists of axial and lateral loading devices, load indicating devices and deformation measuring devices. Refer to Appendix A for symbols, units and instructions commonly used in triaxial instrument calibration. 3.2 Extensometer When the triaxial instrument exerts a load on the rock specimen, the specimen deformation measuring device is composed of a deformation sensor and a deformation display unit. 3.3 Resolution The test machine indicating device that can effectively distinguish indicates the smallest difference between the indicated values. [Source. GB/T 36416.1-2018, 6.40] 3.4 Standard dynamometer A force measuring instrument for verification, calibration, comparison, and transfer of standard force values. 3.5 Division value Indicates the difference between the magnitudes represented by two adjacent scale lines on the scale of the indicating device. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 40961-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 40961-2021_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 GB/T 40961-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 40961-2021_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.