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UNI EN - JIS STANDARDS COMPARISON

UNI EN - JIS STANDARDS COMPARISON

(OP)
I need help for the following questions:
- test result on water vapour permeability for clothes, done according to JIS L1099 Method B-1:1993 (the result is 15156 grams for square meter for 24 hours) can be somehow compared with UNI 48418 or EN343/03 standard for water permeability (expresses in the same units)?
- test result on hydrostatic pressure on the same fabric, done according to JIS L1092-1998 section 6.1.2 method B (the result is 10.000 mm) can be compared to EN 20811/93 or EN343/03 standard (expressed in the same units)?
I'd lik to know the conversion coefficient (if exists).
Thanks to anyone who will help
luca

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