BS EN ISO 389-1:2018 Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones

Acoustic equipment
Auditory threshold
Measuring instruments
Acoustic measurement
Earphones
Hearing (auditory perception)
Reference conditions
Airborne noise
Sound intensity
Single
Artificial ears
Calibration
Audiometry
Couplers
Acoustics
Acoustic engineering
Frequencies

Link: BS EN ISO 389-1:2018 Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
Source: BSI Standards

PD CEN ISO/TR 16401-1:2018 Electronic fee collection. Evaluation of equipment for conformity to ISO/TS 17575-2 Test suite structure and test purposes

Data transmission
Data transfer
Road transport
Data processing
Road vehicles
Electronic equipment and components
Toll systems
Information exchange
Traffic control
Traffic
Accounting
Interfaces (data processing)
Messages

Link: PD CEN ISO/TR 16401-1:2018 Electronic fee collection. Evaluation of equipment for conformity to ISO/TS 17575-2 Test suite structure and test purposes
Source: BSI Standards