| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 1859.4-2025 | English | 444 |
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Days<=4
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Reciprocating internal combustion engines - Measurement of sound power level using sound pressure - Part 4: Survey method for use in situ
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GB/T 1859.4-2025
| Valid |
GB/T 1859.4-2025
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