BS 6810(1987) : 1987 AMD 15538

Foreword
Committees responsible
Methods
Section one. General
0. Introduction
1. Scope
2. Definitions
3. General requirements
Section two. Preliminary treatments
4. Extraction of soluble metals
5. Wet ashing
6. Dry ashing
Section three. Determination of metals
7. Atomic absorption spectrophotometry and related
    methods
8. Colorimetric determination of metals
9. Test report
Appendices
A. Standard matching solutions for atomic absorption
    spectrophotometry
B. Method of standard additions
Tables
1. Standard matching solutions for atomic absorption
    spectrophotometry
2. Flame types and wavelengths for atomic absorption
    spectrophotometry
3. Effects of extraneous ions on the determination
    of copper
4. Effects of extraneous ions on the determination
    of manganese
Figures
1. Example of apparatus for the determination of
    mercury by flameless atomic absorption spectro-
    photometry
2. Examples of calibration graph obtained using the
    method of standard additions

Gives methods for determining proportions present in commonly encountered textile fibres of antimony, arsenic, barium, cadmium, chromium, cobalt, copper, iron, lead, manganese, mercury, nickel and zinc. Applies to textile materials in which the metal being determined constitutes not more than 0.1% by mass of the material. Covers definitions, extraction of soluble metals, wet ashing, dry ashing, atomic absorption spectrophotometry and related methods, colorimetric determination of metals and test report.