GB/T 2389-2013Reactive dyes - Determination of relative content of hydrolised dye comparatively standard sample (English PDF)

1 Scope

This standard specifies the method for determination of the hydrolysis reaction dye dye standard sample relative content.

This standard applies to the determination of the dye and the dye hydrolysis reaction relative content of standard sample.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

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

Determination of GB/T 2387 Reaction dye shade and intensity

Principle 3

Aqueous sample and standard samples using the same amount of colorimetric determination, the measured light intensity score, and then the results were compared dyeing or printing

Compared to calculate the relative amounts of the sample and standard samples of dye hydrolysis.

4 Reagents and materials

Reagents and materials shall comply with the relevant provisions of GB/T 2374-2007 in Chapter 3.

5. Apparatus

Instruments and equipment shall comply with the relevant provisions of GB/T 2374-2007 in Chapter 4.

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

b) spectrophotometer;

c) a single marking straw. 2mL, 5mL;

d) volumetric flask. 100mL, 500mL.

6 Test methods