GBT 1859.1-2015英文版翻译 往复式内燃机 声压法声功率级的测定 工程法

ChinaAutoRegs|GB/T 1859.1-2015英文版/English/翻译/往复式内燃机 声压法声功率级的测定 第1部分:工程法
Reciprocating Internal Combustion Engines – Measurement of Sound Power Level Using Sound Pressure – Part 1: Engineering Method

1 SCOPE

This Part of GB/T 1859 specifies the engineering method, which is the measurement method of the sound power level for reciprocating internal combustion engines.
This Part applies to all reciprocating internal combustion engines (hereinafter referred to as “engines” unless otherwise specified) falling within the field of application of GB/T 6072.1 and other internal combustion engines where no suitable standard exists.

2 NORMATIVE REFERENCES

The following referenced documents are indispensable for the application of this document. For dated references, only the editions cited apply. For undated references, the latest editions of the normative document (including any amendments) apply.
GB/T 3241 Electroacoustics – Octave-band and fractional-octave-band filters
GB/T 3785.1 Electroacoustics – Sound level meters – Part 1: Specifications
GB/T 4129 Acoustics – Requirements for the performance and calibration o reference sound sources used for determination of sound power levels
GB/T 6072.1 Reciprocating internal combustion engines – Performance – Part 1: Declarations of power, fuel and lubricating oil consumptions, and test methods – Additional requirements for engines for general use
GB/T 6072.3 Reciprocating internal combustion engines – Performance – Part 3: Test measurements
GB/T 15173 Electroacoustics – Sound calibrators

3 TERMS AND DEFINITIONS

For the purpose of this document, the terms and definitions given in GB/T 3241, GB/T 3785.1 and GB/T 6072.1, as well as the following apply.
3.1
Sound pressure (p)

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