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Acoustics - Reference zero for the calibration of audiometric equipment - Part 5: Reference equivalent thresh…

Overview EN ISO 389-5:2006 (CEN endorsement) defines reference equivalent threshold sound pressure levels (RETSPLs) for pure tones in the extended high‑frequency range 8 kHz to 16 kHz. It provides st…

Acoustics - Reference zero for the calibration of audiometric equipment - Part 5: Reference equivalent thresh…

Overview EN ISO 389-5:2006 (CEN endorsement) defines reference equivalent threshold sound pressure levels (RETSPLs) for pure tones in the extended high‑frequency range 8 kHz to 16 kHz. It provides st…

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Acoustics — Reference zero for the calibration of audiometric equipment — Part 5: Reference equivalent thresh…

Overview ISO 389-5:2006 is an international standard developed by the International Organization for Standardization (ISO) that specifies reference equivalent threshold sound pressure levels (RETSPLs…

Road vehicles — Screened and waterproof spark-plug and its connection — Type 2

Overview ISO 3895:1986 specifies the essential dimensional characteristics of a screened and waterproof spark-plug (Type 2) and its connector for use in spark-ignition engines. The third edition (198…

Road vehicles — Screened and waterproof spark plug and its connection — Type 2

Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound…