ISO 4793:1980 (R2023)
Active , Reaffirmed Standard
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ISO 4793:1980 (R2023)

Laboratory sintered (fritted) filters — Porosity grading, classification and designation

Summary

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.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 10/01/1980
Confirmation Date 03/13/2023
Edition 1
Page Count 7
EAN ---
ISBN ---
Weight (in grams) ---
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