Normen UNE - Spanische nationale Normen - Seite Nr. 2379

Aerospace series - Heat resisting alloy CO-WH4101 (CoCr20W15Ni) - Filler metal for welding.

Die Norm herausgegeben am 30.4.2002

Steels - Determination of the depth of decarburization (ISO 3887:2023)

Die Norm herausgegeben am 24.4.2024

Aerospace series - Heat resisting alloy CO-WH1402 (CoCr22Ni22W15) - Filler metal for welding.

Die Norm herausgegeben am 30.4.2002

Aerospace series- Steel FE-WM3801 (X5CrNiCu17-4)- Filler metal for welding. (Endorsed by AENOR in February of 2002.)

Die Norm herausgegeben am 1.2.2002

Acoustics - Reference zero for the calibration of audiometric equipment - Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones (ISO 389-1:2017)

Die Norm herausgegeben am 6.3.2019

ACOUSTICS. REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT. PART 2: REFERENCE EQUIVALENT THRESHOLD SOUND PRESSURE LEVELS FOR PURE TONES AND INSERT EARPHONES. (ISO 389-2:1994).

Die Norm herausgegeben am 4.2.1997

Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators (ISO 389-3:2016)

Die Norm herausgegeben am 13.7.2016

ACOUSTICS. REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT. PART 4: REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE (ISO 389-4:1994)

Die Norm herausgegeben am 18.11.1999

Acoustics - Reference zero for the calibration of audiometric equipment - Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz (ISO 389-5:2006)

Die Norm herausgegeben am 26.9.2007

Acoustics - Reference zero for the calibration of audiometric equipment - Part 6: Reference threshold of hearing for test signals of short duration (ISO 389-6:2007)

Die Norm herausgegeben am 30.1.2008