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GB/T 7722-2020: (Electronic Bench Scale)
Status: Valid GB/T 7722: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7722-2020 | English | 629 |
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(Electronic Bench Scale)
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GB/T 7722-2020
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| GB/T 7722-2005 | English | RFQ |
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Electronic portable platform and bench scale
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GB/T 7722-2005
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| GB/T 7722-1995 | English | 279 |
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Price computing scale
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GB/T 7722-1995
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| GB 7722-1987 | English | RFQ |
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ACS type computing electronic scale
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GB 7722-1987
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PDF similar to GB/T 7722-2020
Basic data | Standard ID | GB/T 7722-2020 (GB/T7722-2020) | | Description (Translated English) | (Electronic Bench Scale) | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N13 | | Word Count Estimation | 34,380 | | Date of Issue | 2020-11-19 | | Date of Implementation | 2021-06-01 | | Older Standard (superseded by this standard) | GB/T 7722-2005 | | Regulation (derived from) | National Standard Announcement No. 26 of 2020 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 7722-2020: (Electronic Bench Scale)---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.
(Electronic Bench Scale)
ICS 17.100
N13
National Standards of People's Republic of China
Replace GB/T 7722-2005
Electronic Bench Scale
2020-11-19 released
2021-06-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Preface Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Product model 4
5 Measurement requirements 4
5.1 Unit of measurement 4
5.2 Accuracy level 5
5.3 Additional requirements for multi-range scales 5
5.4 Additional requirements for multi-index scales 5
5.5 Maximum allowable error 5
5.6 Allowable error between weighing results 6
5.7 Standards for inspection 7
5.8 Discrimination 7
5.9 Amount of change caused by influence and time 7
5.10 Range stability 8
6 Technical requirements 9
6.1 General requirements for structure 9
6.2 Indication of weighing result 10
6.3 Zero setting device and zero tracking device 11
6.4 Tare device 12
6.5 Pre-set tare device 13
6.6 Selection of weighing range of multi-range scale 14
6.7 Requirements for the selection (or conversion) of loaders, load transfer devices, and load measuring devices 14
6.8 Additional requirements for scales for retail commodities 14
6.9 Price tag scale 17
6.10 Anti-interference requirements 17
6.11 Functional requirements 17
6.12 Safety and protection requirements 18
6.13 Requirements for packaging and transportation protection capabilities (only applicable to electronic platform scales with Max≤30kg) 18
6.14 Software 18
7 Inspection method 18
7.1 Preparation before inspection 18
7.2 Performance inspection 19
7.3 Impact Factor 23
7.4 Interference performance test (6.10) 25
7.5 Range stability test (5.10) 26
7.6 Safety and protection test (6.12) 27
7.7 Durability test (5.9.4.3) 27
7.8 Inspection of the protective ability of packaging and transportation (6.13) 27
7.9 Software check (6.14) 27
8 Inspection rules 28
8.1 Type inspection 28
8.2 Factory inspection 28
9 Marking, packaging, transportation and storage 29
9.1 Sign 29
9.2 Packaging 30
9.3 Transport 30
9.4 Storage 30
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 7722-2005 "Electronic Bench Scales". Compared with GB/T 7722-2005, the main technical changes are as follows.
---Move the explanations of "multi-range scale", "multi-division scale" and several "zero-setting devices" from the main text to terminology (see 3.6, 3.7, 3.8,
3.10);
---Added the terms "software" "tare device" and other aspects (see 3.13, 3.14);
---Added "software" related requirements and inspections (see 6.14, 7.9);
---Added external power supply or adapter power supply device, non-rechargeable power supply related content (see 5.9.3.2, 5.9.3.3);
---In the interference performance test, the content of "surge" and "conducted disturbance induced by radio frequency field" has been added (see 7.4.4, 7.4.7);
---Added the requirements for the structural design of the scale (for the design quality of the carrier structure of the current electronic platform scale in my country) (see 6.1);
--- Increased the commitment of the manufacturer to the software (see 6.14.1);
---Added the error distribution rules for electronic platform scales and other split products (see 6.1.5);
---Added and improved the content of "multi-range scale" (see 5.3, 6.6);
---Added "durability" to the maximum weighing requirements (see 5.9.4.3);
---Added the "protection of devices and preset controllers" structural requirements (see 6.1.3);
--- Deleted the "maximum allowable error of inspection in use" (see 5.3.2 of the.2005 edition);
--- Deleted the requirement of power frequency change (see 5.7.3.1 of the.2005 edition);
--- Deleted the content of the locked state (see 6.6 in the.2005 edition);
--- Deleted the content of "Auxiliary Verification Device" (see 6.7 of the.2005 edition);
--- In accordance with the content of GB/T 17626, the significant increase in the provisions has been revised (see 6.8.9).
This standard uses the redrafting method with reference to the International Organization for Legal Metrology No. 76 International Recommendation OIMLR76-1..2006 "Non-Automatic Weighing Instruments
Part 1.Metrology and technical requirements test" compilation, the degree of consistency with OIMLR76-1 is not equivalent.
Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents.
This standard was proposed by the China National Light Industry Council.
This standard is under the jurisdiction of the National Weighing Instrument Standardization Technical Committee (SAC/TC97).
Drafting organizations of this standard. Shanghai Yousheng Weighing Apparatus Co., Ltd., Suzhou Sulin Instrument Co., Ltd., Shandong Jinzhong Technology Group Co., Ltd.
Division, Shandong Institute of Metrology, METTLER TOLEDO (Changzhou) Measurement Technology Co., Ltd., Shanghai Dahe Weighing Apparatus Co., Ltd., Zhejiang Ba
Wang Weighing Apparatus Co., Ltd., Zhejiang Institute of Metrology.
The main drafters of this standard. Zhou Biao, Wang Yi, Rong Jinlong, Fan Shaochen, Lu Xinguang, Tan Jianpeng, Lu Taoqin, Ying Tiantong, Shang Xianping.
The previous versions of the standard replaced by this standard are as follows.
---GB/T 7722-1987, GB/T 7722-1995, GB/T 7722-2005.
Electronic Bench Scale
1 Scope
This standard specifies the terms and definitions, product models, measurement requirements, technical requirements, inspection methods of electronic platform scales (hereinafter referred to as "scales")
Laws, inspection rules and signs, packaging, transportation, and storage.
This standard applies to the digital indicator type consisting of a load cell as a primary conversion element, a load carrier, an electronic device, and a digital display device.
Electronic desk scale.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 191 Packaging, Storage and Transportation Graphic Mark
GB/T 2423.1 Environmental testing of electrical and electronic products Part 2.Test methods Test A. Low temperature
GB/T 2423.2 Environmental testing of electric and electronic products Part 2.Test method Test B. High temperature
GB/T 2423.3 Environmental Test Part 2.Test Method Test Cab. Constant Humidity Test
GB/T 6388 Transport packaging receiving and dispatching signs
GB/T 7551 load cell
GB/T 7724-2008 Electronic weighing indicator
GB/T 13384 General technical conditions for packaging of mechanical and electrical products
GB/T 14250 Weighing Instrument Terminology
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 pulse group immunity test
GB/T 17626.5 Electromagnetic compatibility test and measurement technology surge (impact) immunity test
GB/T 17626.6 Electromagnetic compatibility test and measurement technology Radio frequency field induced conduction disturbance immunity test
GB/T 17626.11 Electromagnetic compatibility test and measurement technology Voltage sag, short-term interruption and voltage change immunity test
GB/T 26389 Weighing instrument product model compilation method
QB/T 1588.1 General technical conditions for welding parts of light industry machinery
QB/T 1588.2 General technical conditions for light industry machinery cutting parts
QB/T 1588.3 General technical conditions for assembly of light industry machinery
QB/T 1588.4 General technical conditions for light industrial machinery painting
3 Terms and definitions
The following terms and definitions defined in GB/T 14250 apply to this document.
3.1
Non-automatic weighing instrument
Operator intervention is required during the weighing process to determine whether the weighing result is acceptable.
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