ICS 59.080.01                          TXD 05

Reaffirmed 2022

1. Scope

This standard specifies a test method for the determination of free and released formaldehyde in textile auxiliaries. This method is based on High Performance Liquid Chromatography (HPLC). It is a selective and not sensitive to coloured extracts. The formaldehyde content is taken to be the quantity of free formaldehyde and formaldehyde extracted through hydrolysis contained in a water extract from the auxiliaries under standard conditions. Formaldehyde content in auxiliaries like polyvinyl alcohol, Binder, Resin, Dye fixing agent, Softener etc, have been standardized by this method.

2. REFERENCES

The following Indian Standards are necessary adjuncts to this standard.

3321 : 1973 Specification for formaldehyde solution (first revision)

1070 : 1992 Reagent grade water - Specification (third revision)