0 Stavka
Moj nalog
Telefon: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Prodaja standarda: prodaja@iss.rs Seminari, obuke: iss-edukacija@iss.rs Informacije o standardima: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Glavni meni

ISO 4793:1980

Laboratory sintered (fritted) filters — Porosity grading, classification and designation
1. 10. 1980.

Опште информације

90.93     13. 3. 2023.

ISO

ISO/TC 48/SC 7

Međunarodni standard

71.040.20  

francuski   engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

Filters are graded according to their pore size index in one of the eight classes specified. This is applicable to laboratory filters made of glass, vitreous silica, ceramics, metals and plastic materials. Annex A specifies a method for determination of pore size index. Annex B and C concern with a procedure for assessing uniformity of filters and for determination of air permeability.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 4793:1980
90.93 Odluka o potvrđivanju standarda
13. 3. 2023.