GB/T 26497-2022 English PDF

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GB/T 26497-2022: Electronic balances
Status: Valid

GB/T 26497: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 26497-2022	749	Add to Cart	6 days	Electronic balances	Valid
GB/T 26497-2011	919	Add to Cart	4 days	Electronic balance	Obsolete

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Basic data

Standard ID: GB/T 26497-2022 (GB/T26497-2022)
Description (Translated English): Electronic balances
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N61
Classification of International Standard: 17.060
Word Count Estimation: 38,389
Date of Issue: 2022-12-30
Date of Implementation: 2023-07-01
Older Standard (superseded by this standard): GB/T 26497-2011
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 26497-2022: Electronic balances

---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 17.060 CCSN61 National Standards of People's Republic of China Replacing GB/T 26497-2011 Electronic balance Posted on 2022-12-30 2023-07-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Units of measure 4 5 Basic parameters 4 5.1 Verification division value 4 5.2 Accuracy class 4 5.3 Minimum weighing capacity 5 5.4 Verification division number 5 5.5 Normal working conditions 6 6 Requirements 6 6.1 Appearance and structure 6 6.2 Metering performance 7 6.3 Changes due to influence magnitude and time8 6.4 Function 9 6.5 Weighing result indication 10 6.6 Zero setting device and zero tracking device 11 6.7 Tare removal device 12 6.8 Security requirements 12 6.9 Anti-interference requirements 12 6.10 Damp heat, steady state 13 6.11 Scope Stability 13 6.12 Durability 13 6.13 Additional software requirements 13 6.14 Transport and storage adaptability 16 7 Test method 17 7.1 Test conditions 17 7.2 Test equipment 17 7.3 Test preparation 17 7.4 Appearance and structural inspection 17 7.5 Measurement performance test 17 7.6 Impact factor test 19 7.7 Function check 22 7.8 Preheating time test 22 7.9 Indication test of weighing results 23 7.10 Test of zero-setting device and zero-point tracking device 23 7.11 Tare removal device test 24 7.12 Safety requirements test 24 7.13 Anti-interference performance test 25 7.14 Damp heat, steady state test 27 7.15 Range stability test 27 7.16 Durability test 28 7.17 Inspection of additional software requirements 28 7.18 Transport and storage adaptability test 28 8 Inspection rules 29 8.1 Inspection classification 29 8.2 Factory inspection 29 8.3 Type inspection 29 9 labels, marks30 9.1 Product label (nameplate) 30 9.2 Packaging marks 31 10 Packaging, transportation and storage 31 10.1 Packaging 31 10.2 Transport 31 10.3 Storage 31

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 for Standardization Documents" drafting. This document replaces GB/T 26497-2011 "Electronic Balance". Compared with GB/T 26497-2011, except for structural adjustments and editorial changes In addition to the dynamics, the main technical changes are as follows. a) Changed the description and non-applicable scope of the electronic balance, and clarified the applicable electronic balance --- "balanced by electromagnetic force, resistance strain Type load cell is the core component", add "trade settlement balance" to the non-applicable scope (see Chapter 1); b) Changed the normative reference documents, added GB 4793.1, JJF1843 and JJG99, deleted GB/T 2829, GB/T 12113 and JJG1036 (see Chapter 2); c) Changed the terms and definitions, adding "display division value", "verification division value", "verification division number", "sensitivity", "discrimination power", "repeat Change "tare device" to "tare device" (see 3.4~3.6, 3.12~3.18, 3.11); d) The unit of measurement has been changed, "microgram" has been deleted, and "kilogram" has been changed to "kilogram" (see Chapter 4); e) The constraint relationship between the verification scale value and the display scale value has been added (see 5.1.2 Table 1, 5.1.3, 5.1.4); f) Changed the "minimum weighing Min" formula, changing "100d", "50d", and "20d" to "100e", "50e", "20e" and so on (see Table 3 in 5.2.2); g) Delete the "temperature fluctuation" limit in normal working conditions (see 5.4.4 Table 3 of the.2011 edition); h) Changed the relative humidity range, deleted the "lower humidity limit", and relaxed part of the "humidity upper limit" (see 5.5.3 Table 4 of the.2011 edition); i) The appearance and structure requirements are changed, and the requirements for "adaptability" and "safety" are added (see 6.1.1~6.1.3); j) The measurement performance "zero error" and "tare weighing" requirements have been added (see 6.2.5, 6.2.6); k) Change requirements caused by influence quantity and time, including slope, temperature, voltage and time, etc. (see 6.3, 6.3.1~6.3.4); l) Changed the functional requirements, added the common interface type of the balance and "the balance has no weighing indication during the warm-up time", etc. (see 6.4.2, 6.4.3); m) Changed the requirements for the indication of weighing results, added the "digital indication" part and "indication change", "balance stability" and "storage", etc. (see 6.5.3~6.5.5, 6.5.7); n) Changed the requirements for the tare device, adding "balanced stability" and "same key control" (see 6.7.4, 6.7.5); o) The requirements for anti-interference requirements have been changed, and the "and" relationship has been changed to an "or" relationship (see 6.9.1, 6.9.2); p) Changed the requirements for damp heat and steady state (see 6.10); q) Changed the requirements for range stability and increased frequency and cycle requirements (see 6.11.1); r) Added requirements for durability and additional requirements for software (see 6.12, 6.13); s) Changed the requirements for standard weights (see 7.2.1); t) Changed the measurement performance test requirements, added "zero test" and "tare weighing test", refined and improved the "weighing test" and "repeatability test". Test" and "eccentric load test" (see 7.5.1~7.5.5); u) Changed the test requirements of the influence factor, refined and perfected the tilt test, temperature change test, voltage change test and time-induced Change test, etc. (see 7.6.1~7.6.4); v) Added warm-up time test, balance stability test, anti-interference test, durability test and inspection of additional software requirements, adjustment Adjust "Appendix A Anti-interference test method" to the text (see 7.8, 7.9.3, 7.13, 7.16, 7.17); w) Changed the test requirements for zero-setting device and zero-point tracking device, adding "semi-automatic zero-setting" and "automatic zero-setting" tests (see 7.10); x) Change the safety requirement test, delete the "double insulation" test in the dielectric strength test (see 7.12.1, 7.10.1.2 of the.2011 edition); y) Change the requirements of the inspection rules, delete the periodic inspection requirements, and refine the "inspection items and corresponding requirements, test methods" (see Chapter 8 and Table 12); z) Changed labeling, marking and packaging requirements, refined and improved product labels (nameplates), packaging marks and packaging requirements, etc. (see 9.1, 9.2, 10.1). Please note that some contents of this document may involve patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Laboratory Instruments and Equipment Standardization Technical Committee (SAC/TC526). This document is drafted by. Shanghai Tianmei Tianping Instrument Co., Ltd., Machinery Industry Instrumentation Comprehensive Technology and Economic Research Institute, China Metrology Academy of Sciences, Shanghai Institute of Metrology and Testing Technology, Shenyang Longteng Electronics Co., Ltd., Sartorius (Shanghai) Trading Co., Ltd., Techcomp Yituo Laboratory Equipment (Shanghai) Co., Ltd., Changsha High-tech Development Zone Xiangyi Tianping Instrument Equipment Co., Ltd., Changsha Xiangping Technology Development Co., Ltd. Company, Jiangsu Institute of Metrology, Zhejiang Institute of Metrology, Tianjin Academy of Metrology Supervision and Testing, Yunnan Metrology Testing Technology Research Institute, China Testing Technology Research Institute, Guangzhou Radio and Television Metrology and Testing Co., Ltd., Liaoning Provincial Institute of Metrology. The main drafters of this document. Lianda, Zhang Guiling, Wang Jian, Su Yi, Li Mengxuan, Yao Yizhen, Huang Cheng, Wang Kai, Zhong Ruilin, Zhou Lingrong, Xiong Yifan, Zhu Jun, Liu Wei, Ge Rui, Huang Aijun, Huang Jian, Dang Zhengqiang, Wang Yuwei, Jiang Xianzhi, Xu Hongguang. The release status of previous versions of this document and the documents it replaces are as follows. This document was first published in.2011, and this is the first revision. Electronic balance

1 Scope

This document specifies the terms and definitions, units of measurement, basic parameters, requirements, test methods, inspection rules, labels, marks, Packaging, transportation and storage. This document is applicable to the core components of weighing sensors such as electromagnetic force balance type, resistance strain type, inductive type, and capacitive type. Design and manufacture of electronic balances (hereinafter referred to as balances) not less than 1 mg. This document does not apply to vacuum balances, thermal balances, remote control balances, automatic balances, nor to trade settlement balances and manufactured by agreement scales.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, 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 191 Packaging, storage and transportation icon marks GB 4793.1-2007 Safety requirements for electrical equipment for measurement, control and laboratory use Part 1.General requirements GB/T 9969 General Rules for Instructions for Use of Industrial Products GB/T 11606-2007 Environmental test methods for analytical instruments GB/T 17626.2 Electromagnetic Compatibility Test and Measurement Technology Electrostatic Discharge Immunity Test GB/T 17626.3 Electromagnetic Compatibility Test and Measurement Technology Radio Frequency Electromagnetic Field Radiation Immunity Test GB/T 17626.4 Electromagnetic Compatibility Test and Measurement Technology Electrical Fast Transient Burst Immunity Test GB/T 17626.6 Electromagnetic compatibility test and measurement technology Conducted disturbance immunity induced by radio frequency field GB/T 17626.11 Electromagnetic compatibility test and measurement technology Immunity test for voltage dips, short interruptions and voltage changes JJG99 Weights JJF1834-2020 General technical requirements for non-automatic weighing instruments

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Maximum capacity maximumcapacity Max Maximum weighing capacity without adding tare. [Source. JJF1834-2020, 3.3.1.1, modified] 3.2 Minimum capacity minimumcapacity Min Minimum weighing capacity for accuracy. ......

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