GB/T 21155-2007
Earth-moving machinery.Machine-mounted forward and reverse aucible warning alarm.Sound test method (English Version)
- Standard No.
- GB/T 21155-2007
- Language
- Chinese, Available in English version
- Release Date
- 2007
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2016-06
- Replace By
- GB/T 21155-2015
- Latest
- GB/T 21155-2015
- Scope
- This standard specifies the acoustic performance, test methods and evaluation criteria of alarms for earth-moving machinery, in order to prevent people from being injured by potential dangers when the self-propelled machine is moving (forward or backward). This test is carried out under the fixed condition of the machine. The alarm performance of the machine concerned is a combined function of the design of the alarm, the ambient conditions, the alarm voltage and the arrangement on the machine relative to the machine parts. This test method examines the audible alarm produced by these combined factors. This standard applies to earth-moving machinery defined in GB/T 8498.
GB/T 21155-2007 Referenced Document
- GB/T 13325 Noise emitted by machinery and equipment--Guidelines for the preparation of test codes of engineering grade requring noise measurements at the operator's or bystander's position
- GB/T 13802 General method for measurement of airborne noise emitted by construction machinery and equipment
- GB/T 16710.2 Measurement of exterior noise emitted by earth-moving machinery--Stationary test conditions
- GB/T 16710.3 Measurement at the operator's position of noise emitted by earth-moving machinery--Stationary test conditions
- GB/T 3785-1983 Electric,sonic properties and measuring methods for sound level meters
- GB/T 8498 Earth-moving machinery—Basic types—Identification and terms and definitions*， 2017-11-01 Update
- GB/T 8591 Earth-moving-Seat index point
GB/T 21155-2007 history
- 2016 GB/T 21155-2015 Test methods and performance criteria for audible alarm devices and front horns for earth-moving machinery
- 2007 GB/T 21155-2007 Earth-moving machinery.Machine-mounted forward and reverse aucible warning alarm.Sound test method
