BS ISO 7229:1997

Rubber- or plastics-coated fabrics. Measurements of gas permeability. | Status: Revised, Superseded, Withdrawn

1 Scope This International Standard specifies a method of measuring gas transmission through fabrics coated with plastics or rubber, a property known as permeability. It is particularly applicable

• — when the anticipated permeability is less than 3 dm3/(d·m2) (cubic decimetres per day per square metre);
• — when particular temperature or pressure conditions are required;
• — when the measurement requires the use of particular gases, either in the pure state or as a mixture.

2 Normative references

The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.

• ISO 2231:1989, Rubber- or plastics-coated fabrics — Standard atmospheres for conditioning and testing.
• ISO 2286-1:—1), Rubber- or plastics-coated fabrics — Determination of roll characteristics — Part 1: Method for determination of the length, width and net mass of a roll.
• ISO 3601-1:1988, Fluid systems — Sealing devices — O-rings — Part 1: Inside diameters, cross-sections, tolerances and size identification code.