STM PDF

Acoustics - Audiometric test methods - Part 2- Sound field audiometry with pure-tone and narrow-band test signals. Original standard ISO 8253-2-2009 in PDF full version. Additional info + preview on request

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Acoustics - Audiometric test methods - Part 3- Speech audiometry. Original standard ISO 8253-3-2022 in PDF full version. Additional info + preview on request

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Paper and board - Measurement of specular gloss - Part 1- 75 degree gloss with a converging beam, TAPPI method. Original standard ISO 8254-1-2009 in PDF full version. Additional info + preview on request

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Paper and board - Measurement of specular gloss - Part 2- 75 degree gloss with a parallel beam, DIN method. Original standard ISO 8254-2-2016 in PDF full version. Additional info + preview on request

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Paper and board - Measurement of specular gloss - Part 3- 20 degree gloss with a converging beam, TAPPI method. Original standard ISO 8254-3-2016 in PDF full version. Additional info + preview on request

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Microscopes - Cover glasses - Part 1- Dimensional tolerances, thickness and optical properties. Original standard ISO 8255-1-2017 in PDF full version. Additional info + preview on request

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