CAN/CGSB-4.2 No. 74-M91

Textile Test Methods Textiles - Determination of pH of the Aqueous Extract
This National Standard of Canada is equivalent to International Standard ISO 3071:1980. This International Standard specifies a method for determining the pH value of the aqueous extract of textiles.¹) The method is applicable to textile in any form (fibres, yarn, fabrics, etc.), provided that a small representative sample may be obtained which is in, or may be reduced to, a form which permits a ready exchange of liquid between the interior of the materials and the water used in preparing the extract. ¹) The values obtained for the pH of the aqueous extract of samples of textiles by the method specified in this International Standard cannot be used to give a quantitative estimate of the acidity or alkalinity of the textile. Such an interpretation may be misleading, particularly for pH values less than 3 or greater than 11.
SDO:
CGSB
Language:
English
ICS Codes:
71.040.40; 59.080.01; 19.020
Status:
Withdrawn
Publish date:
1991-11-29
Standard Number:
CAN/CGSB-4.2 No. 74-M91