BS 6810-1-1987 Determination of metals in textiles - Analysis by atomic absorption and colorimetric spectroscopy《纺织品中金属含量的测定 用原子吸收和比色光谱测定法分析》.pdf

1、BRITISH STANDARD BS 6810-1: 1987 Incorporating Amendments Nos. 1 and 2 to BS 6810:1987 (Amendment No. 2 renumbers BS 6810:1987 as BS 6810-1:1987) Determination of metals in textiles Part 1: Analysis by atomic absorption and colorimetric spectroscopyBS 6810-1:1987 This British Standard, having been p

2、repared under the direction of the Textiles and Clothing Standards Committee, was published under the authority of the Board of BSI and comes into effect on 30 October 1987 BSI 24 May 2005 The following BSI references relate to the work on this British Standard: Committee reference TCM/26 Draft for

3、comment 86/35662 DC ISBN 0 580 15878 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Textiles and Clothing Standards Committee (TCM/-) to Technical Committee TCM/26, upon which the following bodies were represented: British Carpet Manu

4、facturers Association Ltd. Department of Trade and Industry (Laboratory of the Government Chemist) International Wool Secretariat Man-made Fibres Producers Committee Ministry of Defence Textile Research Council Amendments issued since publication Amd. No. Date Comments 8187 May 1994 Amendment includ

5、ed with document 15538 24 May 2005 Renumbers BS 6810:1987 to BS 6810-1:1987BS 6810-1:1987 BSI 24 May 2005 i Foreword This Part of BS 6810-1 has been prepared by Technical Committee TCM/26. BS 6810 has been prepared in the context of several test methods for the determination of metals in textiles by

6、 different analytical techniques. This Part of the standard covers the determination of metals in textiles by the colorimetric and atomic absorption spectroscopy techniques. Part 2 of this standard covers the determination of metals in textiles by analysis using atomic emission spectroscopy. Methods

7、 of test for the determination of relatively large proportions of metals in textiles, such as may be introduced for proofing purposes, are covered by BS 2087, and BS 4F 100 also includes methods for the determination of traces of iron and copper. This standard covers methods for the determination, a

8、t levels of 0.1 % or less of the mass of the textile material, of a range of metals (antimony, arsenic, barium, cadmium, chromium, cobalt, copper, iron, lead, manganese, mercury, nickel, and zinc), wider than formerly included in BS Handbook 11 (withdrawn 1984). It also extends the range of textile

9、fibres in which these metals are to be determined, to include all those commonly encountered (as listed in BS 4815), with the exception of inorganic fibres. Methods for both soluble and total metals are included. The methods for the determinaiton of metals used to be based almost exclusively on colo

10、rimetry. It is recognized that today instrumental techniques such as atomic absorption spectrophometry or a related technique is the preferred method for the final determination of metals, and that the appropriate instruments are available in most well-equipped laboratories. Atomic absorption spectr

11、oscopy is therefore included in this Part, and other instrumental techniques appear in subsequent parts of this standard. Attention is drawn to the standard addition method in Appendix B. Alternative colorimetric methods have been retained. Metals in textile materials come from a variety of origins,

12、 and are consequently present at different concentration levels. For some metals, the significance of the particular level found in a sample will be determined by the toxicity of the metal, for other less toxic metals, textile considerations can determine this significance. As a general indication o

13、f the lower limits of applicability of the methods, it is suggested that, for those methods based on atomic absorption spectrophotometry; with the exception of antimony and arsenic for which the technique is less sensitive, an optimum concentration range of a few parts per million of metal can be re

14、alized in the sample. With the exception of the methods for chromium, iron, manganese and nickel, for which the lower limit is in the range 10 parts per million to 50 parts per million, the colorimetric methods are of almost equal sensitivity when the assumption is of a sample mass of a few grams. C

15、hemical names in accordance with BS 2474:1993(1998) have been used, but deprecated names or other names used in industry are given, where applicable, in brackets.BS 6810-1:1987 ii BSI 24 May 2005 The presence of metallic elements in textile materials can arise in a variety of ways. Accidental or unf

16、oreseen contamination of textiles can occur, at any stage of manufacture or in use, by metals whose presence can pose a health hazard to humans or animals, particularly if the contamination is of such a nature that the metal is easily released. Some man-made fibres contain metals introduced in polym

17、er manufacture (e.g. catalyst residues) or mass colouration (pigments). Animal fibres contain traces of copper, probably of biosynthetic origin. Metals can be deliberately introduced in subsequent processing (e.g. mordanting) or as components of metal-complex dyes. During textile processing, acciden

18、tal contamination by materials of construction, notably copper and iron, is not uncommon, and may have a deleterious effect on quality. Methods of test for metals in textiles can be required for a variety of reasons related to the origins detailed above, quality control, fault diagnosis or complaint

19、 investigation, textile research and development work, or hygienic considerations. The methods for the determination of metals described in this standard are restricted to those which can be carried out in a well-equipped textile laboratory. Determination of metals in textile fibres, e.g. for genera

20、l research purposes, for forensic investigations, and for the identification through the presence of traces of metals deliberately introduced, of specific brands of man-made fibres, might not be covered by this standard. WARNING This British Standard calls for the use of substance and/or procedures

21、that may be injurious to health if adequate precautions are not taken. It referes only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. Sources of hazard, which require particular attention, include the use of compressed gases,

22、 the use of corrosive liquids at elevated temperatures, the handling of toxic substances, and the possibilities of explosive detonations in gases. It has been assumed in the drafting of this British Standard that execution of its provisions is entrusted to qualified and experienced people. NOTE Good

23、 practice in relation to safety procedures is defined in Hazards in the chemical laboratory. LUXON, S.G. (ed.) Cambridge: The Royal Society of Chemistry, fifth edition, 1993. Practical guidance in the application of COSHH regulations and broader aspects of health and safety in chemical laboratories

24、are given in COSHH in laboratories and Safe practices in chemical laboratories. The Royal Society of Chemistry, London, 1989. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard

25、 does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 28, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last is

26、sued. BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS68101:1987BS6810

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