1 Scope
This standard specifies the classification, requirements, test methods, inspection rules, marking, packaging, storage and preservation of instruments for automobile and motorcycle (hereinafter referred to as instruments).
This standard is applicable to speedometer, tachometer, fuel gauge, thermometer, pressure gauge, voltmeter and ammeter for automobile and motorcycle. It may also be referred to for instruments for other motor vehicles.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 191 Packaging—Pictorial marking for handling of goods
GB/T 2423.10 Environmental testing for electric and electronic products—Part 2: Test methods—Test Fc and guidance: Vibration (Sinusoidal)
GB/T 2423.17 Basic environmental testing procedures for electric and electronic products—Test Ka: Salt mist
GB/T 2423.22 Environmental testing for electric and electronic products—Part 2: Test methods—Test N: Change of temperature
GB/T 2423.34 Environmental testing for electric and electronic products—Part 2: Test methods—Test Z/AD: Composite temperature/humidity cyclic test
GB/T 2828.1 Sampling procedures for inspection by attributes—Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 8170 Rules for Rounding Off of Numerical Values
GB/T 17619 Limits and methods of testing for immunity of electrical/electronic sub-assemblies in vehicles to electromagnetic radiation
GB/T 21437.2-2008 Road vehicles—Electrical disturbances from conduction and coupling—Part 2: Electrical transient conduction along supply lines only
QC/T 238 Storage and preservation for automotive parts
QC/T 29106 Technical specification of low-voltage electric harness for motor vehicles
3 Product classification
It is divided by function into speedometer, tachometer, fuel gauge, thermometer, pressure gauge, voltmeter, ammeter, and so on. See Table 1 for classification by implementation mode.
Foreword i
1 Scope
2 Normative references
3 Product classification
4 Requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, storage and preservation
