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Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. DBT91-2022: (Test specification for DC ground resistivity meter) Status: Valid
Basic dataStandard ID: DB/T 91-2022 (DB/T91-2022)Description (Translated English): (Test specification for DC ground resistivity meter) Sector / Industry: Chinese Industry Standard (Recommended) Classification of Chinese Standard: P15 Classification of International Standard: 91.120.25 Word Count Estimation: 32,379 Date of Issue: 2022-12-29 Date of Implementation: 2023-05-01 Issuing agency(ies): China Earthquake Administration DBT91-2022: (Test specification for DC ground resistivity meter)---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.ICS 91.120.25 CCSP15 Seismic Industry Standard of the People's Republic of China Test specification for DC ground resistivity meter Released on 2022-12-29 2023-05-01 implementation Released by the China Earthquake Administration table of contentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Test item 2 5 Detection conditions 3 6 Detection method 4 7 Test report content requirements 12 Appendix A (Informative) Test Record Example 13 Appendix B (informative) Earth resistivity measurement error detection method 22 Appendix C (Normative) Safety Test of DC Ground Resistivity Meter 23 Appendix D (Normative) Environmental Adaptability Test of DC Ground Resistivity Meter 25 Reference 28forewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the China Earthquake Administration. This document is under the jurisdiction of the Earthquake Monitoring and Forecasting Standardization Technical Committee. This document was drafted by. Institute of Earthquake Prediction, China Earthquake Administration, China Earthquake Network Center, Gansu Earthquake Administration, China Earthquake Administration First Monitoring Center, Jiangsu Earthquake Administration. The main drafters of this document. Wang Lanwei, Hu Zhe, Zhang Yu, Zhang Xingguo, Zhang Shizhong, Zhou Kechang, Zeng Wenhao, Tan Dacheng, Meng Qingxiao, Bu Yufei. Test specification for DC ground resistivity meter1 ScopeThis document specifies the test items, test conditions, test methods and test report content of DC georesistivity meters among seismic observation instruments. Require. This document is applicable to the development, production, finalization, network connection, inspection and quality monitoring of DC georesistivity instrument for earthquake monitoring. Governor. Other similar equipment can refer to implementation.2 Normative referencesThis document has no normative references.3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 measurement error measurement error The difference between the displayed value of the DC ground resistivity meter and the input reference value. 3.2 Within the voltage measurement range of the DC ground resistivity meter, the minimum input increment that causes a perceivable change in the corresponding voltage display value. 3.3 Stabilitystability All other things being equal, the ability of an instrument to maintain its performance characteristics unchanged over a specified time interval. [Source. GB/T 11464-2013,2.23] 3.4 linearity linearity The ability of an instrument to give an indicated value that is only linearly related to a specified quantity rather than to an influencing quantity. Note. Due to the lack of different representations of linearity for different types of instruments, each is given with a certain example. [Source. GB/T 11464-2013, 2.17, modified] 3.5 Input zero current zerocurrent When the input signal is zero, the current in the input circuit of the instrument is caused by the instrument itself. Note. It is equivalent to the injection current applied between the two input terminals to reduce the output indication value to zero when the input voltage and bias voltage are zero. [Source. GB/T 13978-2008, 3.2.10, modified] 3.6 In the measurement of earth resistivity, the geometric parameters representing the electrodes laid out according to certain rules are only related to the spatial position of each electrode. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of DBT91-2022_English be delivered?Answer: Upon your order, we will start to translate DBT91-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of DBT91-2022_English with my colleagues?Answer: Yes. The purchased PDF of DBT91-2022_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. 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