BS ISO 22262-1-2012 Air quality Bulk materials Sampling and qualitative determination of asbestos in commercial bulk materials《空气质量 散装材料 商用散装材料的石棉取样和定性测定》.pdf
《BS ISO 22262-1-2012 Air quality Bulk materials Sampling and qualitative determination of asbestos in commercial bulk materials《空气质量 散装材料 商用散装材料的石棉取样和定性测定》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 22262-1-2012 Air quality Bulk materials Sampling and qualitative determination of asbestos in commercial bulk materials《空气质量 散装材料 商用散装材料的石棉取样和定性测定》.pdf(82页珍藏版)》请在麦多课文档分享上搜索。
1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication Air quality Bulk materials Part 1: Sampling and qualitative determination of asbestos in commercial bulk materials BS ISO 22262-1:2012National foreword This British standard i
2、s the UK implementation of ISO 22262-1:2012. The UK participation in its preparation was entrusted by Technical Committee EH/2, Air quality, to Subcommittee EH/2/3, Ambient atmospheres. A list of organizations represented on this committee can be obtained on request to its secretary. This publicatio
3、n does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012 Published by BSI Standards Limited 2012 ISBN 978 0 580 68871 3 ICS 13.040.20 Compliance with a British Standard cannot confer immunity f
4、rom legal obligations. This British Standard was published under the authority of the Stand- ards Policy and Strategy Committee on 31 July 2012. Amendments issued since publication Amd. No. Date Text affected BRITISH STANDARD BS ISO 22262-1:2012 ISO 2012 Air quality Bulk materials Part 1: Sampling a
5、nd qualitative determination of asbestos in commercial bulk materials Qualit de lair Matriaux solides Partie 1: chantillonnage et dosage qualitatif de lamiante dans les matriaux solides dorigine commerciale INTERNATIONAL STANDARD ISO 22262-1 First edition 2012-07-01 Reference number ISO 22262-1:2012
6、(E) BS ISO 22262-1:2012 ISO 22262-1:2012(E) ii ISO 2012 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying a
7、nd microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland B
8、S ISO 22262-1:2012 ISO 22262-1:2012(E) ISO 2012 All rights reserved iii Contents Page Foreword . v Introduction .vi 1 Scope 1 2 T erms and definitions . 1 3 Symbols and abbreviated terms . 7 4 Principle . 8 4.1 General . 8 4.2 Substance determination 8 4.3 Type of sample . 8 4.4 Range 8 4.5 Limit of
9、 detection . 9 4.6 Limitations of PLM in the detection of asbestos 9 5 Sample collection 9 5.1 Requirements . 9 5.2 Procedure 10 6 Sample preparation .14 6.1 General .14 6.2 Removal of organic materials by ashing 14 6.3 Removal of soluble constituents by acid treatment 14 6.4 Sedimentation and flota
10、tion .14 6.5 Combination of gravimetric reduction procedures 14 7 Analysis by PLM 14 7.1 Requirements .14 7.2 Qualitative analysis by PLM .19 8 Analysis by SEM 29 8.1 General .29 8.2 Requirements .29 8.3 Calibration .29 8.4 Sample preparation .30 8.5 Qualitative analysis by SEM .30 9 Analysis by tra
11、nsmission electron microscope .31 9.1 General .31 9.2 Requirements .32 9.3 Calibration .32 9.4 Sample preparation .33 9.5 Qualitative analysis by TEM .33 10 Test report .35 Annex A (normative) Types of commercial asbestos-containing material .36 Annex B (normative) Interference colour chart 40 Annex
12、 C (normative) Dispersion staining charts .41 Annex D (normative) Asbestos identification by PLM and dispersion staining in commercial materials .43 Annex E (normative) Asbestos identification by SEM in commercial materials .52 Annex F (normative) Asbestos identification by TEM in commercial materia
13、ls .58 Annex G (informative) Example of sampling record .67 Annex H (informative) Example of test report .68 BS ISO 22262-1:2012 ISO 22262-1:2012(E) iv ISO 2012 All rights reserved Bibliography .69 BS ISO 22262-1:2012 ISO 22262-1:2012(E) Foreword ISO (the International Organization for Standardizati
14、on) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be re
15、presented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards
16、are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internati
17、onal Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 22262-1 was
18、 prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 3, Ambient atmospheres. ISO 22262 consists of the following parts, under the general title Air quality Bulk materials: Part 1: Sampling and qualitative determination of asbestos in commercial bulk materials The following part
19、is under preparation: Part 2: Quantitative determination of asbestos by gravimetric and microscopical methods ISO 2012 All rights reserved v BS ISO 22262-1:2012 ISO 22262-1:2012(E) Introduction In the past, asbestos was used in a wide range of products. Three varieties of asbestos found extensive co
20、mmercial application. Chrysotile accounted for approximately 95 % of consumption, and this variety is therefore likely to be encountered most frequently during the analysis of samples. Materials containing high proportions of chrysotile asbestos were used in buildings and in industry for fireproofin
21、g, thermal insulation, and acoustic insulation. Chrysotile was also used to reinforce materials to improve fracture and bending characteristics. A large proportion of the chrysotile produced was used in asbestoscement products. These include flat sheets, tiles and corrugated sheets for roofing, pipe
22、s and open troughs for the collection of rainwater, as well as pressure pipes for supply of potable water. Chrysotile was also incorporated into products such as decorative coatings and plasters, glues, sealants and resins, floor tiles, gaskets, and road paving. In some products, chrysotile was inco
23、rporated to modify rheological properties, e.g. in the manufacture of ceiling tile panels and oil drilling muds. Long textile grade chrysotile fibre was also used to manufacture woven, spun, felted and paper products. Amosite and crocidolite accounted for almost all of the remaining asbestos use. Am
24、osite was widely used as fireproofing and in thermal insulation products, e.g. pipe coverings and insulating boards. Crocidolite was also used as fireproofing and in thermal insulation products, but was particularly prized because it is highly resistant to acids, flexible enough to be spun and has h
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