ISO 8253-2:2009 pdf download

ISO 8253-2:2009 pdf download

This part of ISO 8253 specifies relevant test signal characteristics, requirements for free, diffuse, and quasi-free sound fields, and procedures for sound field audiometry using pure tones, frequency-modulated tones or other narrow-band test signals presented by means of one or more loudspeakers. The primary purpose is the determination of hearing threshold levels in the frequency […]

ISO 8253-2:2009 pdf download Read More »

ISO 8015:2011 pdf download

ISO 8015:2011 pdf download

ISO 8015:2011 specifies fundamental concepts, principles and rules valid for the creation,interpretation and application of all other International Standards, Technical Specifications and Technical Reports concerning dimensional and geometrical product specifications (GPS) and verification. This International Standard applies to the interpretation of GPS indications on all types of drawings. For the purposes of this International Standard,

ISO 8015:2011 pdf download Read More »