NP 1889-1986
Sound category. Close isolation method and isolation method from external noise
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NP 1889-1986
Standard No.
NP 1889-1986
Release Date
1986
Published By
PT-IPQ
Latest
NP 1889-1986
NP 1889-1986 history
1986
NP 1889-1986
Sound category. Close isolation method and isolation method from external noise
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