What is the normative document that specifies the requirements, tests, and marking for gas filters and combination filters? a) NCh1285/2.Of97 b) ...

What is the normative document that specifies the requirements, tests, and marking for gas filters and combination filters?

a) NCh1285/2.Of97
b) NCh1285/2.Of77
c) UNE 81-285-91 (EN 141)

Construção Civil

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13/8/2023

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17 pag.

NCh1285-2-1997

Construção • Vicente Riva PalacioVicente Riva Palacio

Marcelo Zamorano

Marcelo Zamorano

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