This standard specifies the terminology and normative reference documents of digital multimeters (hereinafter referred to as instruments), specifies technical requirements, test methods and inspection rules, and gives some basic requirements such as product marking, packaging and storage. This standard applies to various types of digital multimeters. It is also suitable for various analog-to-digital converters for digital measurement of analog quantities such as DC voltage, AC voltage, DC current, AC current and resistance in various data processing and information control equipment, automatic test systems or personal instrument systems . This standard also applies to the same type of digital measuring instruments based on measuring voltage and other parameters (electric or non-electric) and their associated accessories, or their combination. This standard also applies to the digital measurement and display part of multimeters that combine digital and analog or graphics. This standard does not apply to analog multimeters and other non-digital indicating instruments.
GB 4208-1993 Degrees of protection provided by enclosure (IP code)
GB 4793.1-2007 Safety requirements for electrical equipment for measurement,control,and laboratory use.Part 1:General requirements
GB 9254-1998 Information technology equipment--Radio disturbance characteristics--Limits and methods of measurement
GB/T 17626.1 Electromagnetic compatibility Testing and measurement techniques Overview of immunity test
GB/T 17626.1-2006 Electromagnetic compatibility Testing and measurement techniques Overview of immunity test
GB/T 17626.2-2006 Electromagnetic compatibility Testing and measurement techniques Electrostatic discharge immunity test
GB/T 17626.3-2006 Electromagnetic compatibility Testing and measurement techniques Radiated, radio-frequency, electromagnetic field immunity test
GB/T 17626.4-1998 Electromagnetic compatibility--Testing and measurement techniques--Electrical fast transient/burst immunity test
GB/T 17626.5-1999 Electromagnetic compatibility--Testing and measurement techniques--Surge immunity test
GB/T 17626.6-1998 Electromagnetic compatibility Testing and measurement techniques Immunity to conducted disturbances,induced by radio-frequency fields
GB/T 191-2008 Packaging.Pictorial marking for handling of goods
GB/T 2423.1-2001 Environmental testing for electric and electronic products Part 2: Test methods Tests A: Cold
GB/T 2423.2-2001 Environmental testing for electric and electronic products Part 2: Test methods Tests B: Dry heat
GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products. Test Db:Damp heat,cyclic
GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)