IS 10810 : Part 26 : 1984 Methods of test for cables:Part 26 pH value of water extract test of insulating paper

1 Scope

This method is designed to indicate the active and the totalacidity or alkalinity of an aqueous extract of insulating papersfor electric cables. Since the aqueous extracts of most untreatedpapers used for electrical insulation are normally unbuffered andare readily affected by atmospheric conditions, this methodembodies features to minimize errors from this source.