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GB/T 7722-2020Electronic Bench Scale (English PDF)

电子台案秤

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

November 19, 2020

Implementation date

June 1, 2021

Scope

GB/T 7722-2020 is the English-translated version of 电子台案秤.

GB/T 7722-2020 is the Chinese standard "Electronic Bench Scale".

Its scope clause reads: 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. Its clauses include terms and definitions.

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Document preview — GB/T 7722-2020

National Standard of the People's Republic of China

Classification: N 13
Replacing: GB/T 7722-2005

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
1 Scope
2 Normative references
3 Terms and definitions
4 Product model
5 Measurement requirements
5.1 Unit of measurement
5.2 Accuracy level
5.3 Additional requirements for multi-range scales
5.4 Additional requirements for multi-index scales
5.5 Maximum allowable error
5.6 Allowable error between weighing results
5.7 Standards for inspection
5.8 Discrimination
5.9 Amount of change caused by influence and time
5.10 Range stability
6 Technical requirements
6.1 General requirements for structure
6.2 Indication of weighing result
6.3 Zero setting device and zero tracking device
6.4 Tare device
6.5 Pre-set tare device
6.6 Selection of weighing range of multi-range scale
6.7 Requirements for the selection (or conversion) of loaders, load transfer devices, and load measuring devices
6.8 Additional requirements for scales for retail commodities
6.9 Price tag scale
6.10 Anti-interference requirements
6.11 Functional requirements
6.12 Safety and protection requirements
6.14 Software
7 Inspection method
7.1 Preparation before inspection
7.2 Performance inspection
7.3 Impact Factor
7.4 Interference performance test (6.10)
7.5 Range stability test (5.10)
7.6 Safety and protection test (6.12)
7.7 Durability test (5.9.4.3)
7.8 Inspection of the protective ability of packaging and transportation (6.13)
7.9 Software check (6.14)
8 Inspection rules
8.1 Type inspection
8.2 Factory inspection
9 Marking, packaging, transportation and storage
9.1 Sign
9.2 Packaging
9.3 Transport
9.4 Storage

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.

GB/T 9081 | GB/T 21296.3 | GB/T 21296.2 | GB/T 7724 | GB/T 7721 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 6 pages — is available in the English PDF.

Referenced standards

Normative references

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