GB/T 23979.1-2009Fluorescent whitening agents - Determination of relative whiteness and shade - Dyeing method for cotton fabric (English PDF)

1 Scope

This standard specifies the determination method fluorescent whitening whitening whitening cotton fabric strength and shade.

This standard applies to the determination of cotton fabric whitening fluorescent whitening agent intensity and shade.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

General conditions GB/T 2374-2007 Determination of dyes provisions

GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)

GB/T 9338 relative fluorescent whitening whiteness measuring instrument method (GB/T 9338-2008, ISO 105-J02.1997,

MOD)

HG/T 2609-1994 standard test dye bleached cotton

3 equipment and materials

Equipment and materials shall comply with GB/T 2374-2007 relating to equipment and materials; experimental water should comply with GB/T 6682-

2008 three water requirements.

a) white Instrument. should meet GB/T 9338 requirements;

b) analytical balance. a sense of the amount of 0.0001g;

c) cotton. meet HG/T 2609-1994 requirements.

4 Determination