BS ISO 15202-2-2012 Workplace air Determination of metals and metalloids in airborne particulate matter by inductively coupled plasma atomic emission spectrometry Sample preparatio.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 15202-2:2012Workplace air Determinationof metals and metalloids inairborne particulate matterby inductively coupled plasmaatomic emission spectrometryPart 2: Sample prepar

2、ationBS ISO 15202-2:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 15202-2:2012.It supersedes BS ISO 15202-2:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EH/2/2, Work place atmospheres.A list of organ

3、izations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012IS

4、BN 978 0 580 69881 1ICS 13.040.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2012.Amendments issued since publicationDate Text affectedBS ISO 15202-2:

5、2012 ISO 2012Workplace air Determination of metals and metalloids in airborne particulate matter by inductively coupled plasma atomic emission spectrometry Part 2: Sample preparationAir des lieux de travail Dtermination des mtaux et mtallodes dans les particules en suspension dans lair par spectromt

6、rie dmission atomique avec plasma couplage inductif Partie 2: Prparation des chantillonsINTERNATIONAL STANDARDISO15202-2Second edition2012-02-01Reference numberISO 15202-2:2012(E)BS ISO 15202-2:2012ISO 15202-2:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights rese

7、rved. 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 and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the reques

8、ter.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 15202-2:2012ISO 15202-2:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope 12 Normative referenc

9、es . 23 Terms and definitions . 24 Principle . 45 Requirements . 46 Reactions . 47 Reagents 58 Laboratory apparatus . 59 Procedure 69.1 Soluble metal and metalloid compounds . 69.2 Total metals and metalloids and their compounds 69.3 Mixed exposure 610 Special cases 710.1 Action to be taken if there

10、 is doubt about the effectiveness of the selected sample dissolution method . 710.2 Action to be taken when particles have become dislodged from the filter during transportation 710.3 Action to be taken regarding sampler wall deposits . 711 Laboratory records . 7Annex A (informative) Safety precauti

11、ons to be observed when using hydrofluoric and perchloric acids . 8Annex B (normative) Sample dissolution method for soluble metal and metalloid compounds . 9Annex C (normative) Sample dissolution using nitric acid and hydrochloric acid on a hotplate 15Annex D (normative) Sample dissolution using hy

12、drofluoric and nitric acids and ultrasonic agitation . 19Annex E (normative) Sample dissolution using sulfuric acid and hydrogen peroxide on a hotplate . 22Annex F (normative) Sample dissolution using nitric acid and perchloric acid on a hotplate .26Annex G (normative) Sample dissolution in a closed

13、 vessel microwave dissolution system 30Annex H (normative) Sample dissolution at 95 C using a hot block 35Annex I (normative) Action to be taken when there is visible, undissolved, particulate material after sample dissolution 38Annex J (informative) Sampler wall deposits43Bibliography .45BS ISO 152

14、02-2:2012ISO 15202-2:2012(E)ForewordISO (the International Organization for Standardization) 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

15、 in a subject for which a technical committee has been established has the right to be represented 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 Comm

16、ission (IEC) on all matters of electrotechnical standardization.International Standards 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

17、 committees are circulated to the member bodies for voting. Publication as an International 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

18、not be held responsible for identifying any or all such patent rights.ISO 15202-2 was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 2, Workplace atmospheres.This second edition cancels and replaces the first edition (ISO 15202-2:2001), which has been technically revised. T

19、he major changes in the second edition are as follows. Definitions have been updated. In Annex B, use of ammonium citrate leach solution has been eliminated. A new Annex H has been added to provide a method for sample dissolution using a 95 C hot block dissolution system. The original Annex H is now

20、 Annex I. A new Annex J has been added to provide guidance regarding sampler wall deposits.Annexes B through I form a normative part of this document. Annex A and Annex J are for information only.ISO 15202 consists of the following parts, under the general title Workplace air Determination of metals

21、 and metalloids in airborne particulate matter by inductively coupled plasma atomic emission spectrometry: Part 1: Sampling Part 2: Sample preparation Part 3: Analysisiv ISO 2012 All rights reservedBS ISO 15202-2:2012ISO 15202-2:2012(E)IntroductionThe health of workers in many industries is at risk

22、through exposure by inhalation of toxic metals and metalloids. Industrial hygienists and other public health professionals need to determine the effectiveness of measures taken to control workers exposure, and this is generally achieved by making workplace air measurements. This part of ISO 15202 ha

23、s been published in order to make available a method for making valid exposure measurements for a wide range of metals and metalloids in use in industry. It will be of benefit to agencies concerned with health and safety at work, industrial hygienists and other public health professionals, analytica

24、l laboratories, industrial users of metals and metalloids and their workers.ISO 15202, published in three parts, specifies a generic method for the determination of the mass concentration of metals and metalloids in workplace air using inductively coupled plasma atomic emission spectrometry (ICP-AES

25、). ISO 15202-1 gives details of relevant International, European and National Standards which specify characteristics, performance requirements and test methods relating to sampling equipment. It also augments guidance provided elsewhere on assessment strategy and measurement strategy, as well as sp

26、ecifying a method for collecting samples of airborne particulate matter for subsequent chemical analysis. ISO 15202-2 (i.e. this part) describes a number of procedures for preparing sample solutions for analysis by ICP-AES. ISO 15202-3 gives requirements and test methods for the analysis of sample s

27、olutions by ICP-AES.The sample preparation methods described in this part of ISO 15202 are generally suitable for use with analytical techniques other than ICP-AES; e.g. atomic absorption spectroscopy (AAS) and inductively coupled plasma mass spectrometry (ICP-MS).It has been assumed in the drafting

28、 of this part of ISO 15202 that the execution of its provisions and the interpretation of the results obtained are entrusted to appropriately qualified and experienced people. ISO 2012 All rights reserved vBS ISO 15202-2:2012BS ISO 15202-2:2012Workplace air Determination of metals and metalloids in

29、airborne particulate matter by inductively coupled plasma atomic emission spectrometry Part 2: Sample preparationWARNING The use of this part of ISO 15202 may involve hazardous materials, operations and equipment. This part of ISO 15202 does not purport to address any safety problems associated with

30、 its use. It is the responsibility of the user of this part of ISO 15202 to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1 Scope1.1 This part of ISO 15202 specifies a number of suitable methods for preparing test solutions f

31、rom samples of airborne particulate matter collected using the method specified in ISO 15202-1, for subsequent determination of metals and metalloids by ICP-AES using the method specified in ISO 15202-3. It contains information about the applicability of the methods with respect to the measurement o

32、f metals and metalloids for which limit values have been set. The methods can also be used in the measurement of some metals and metalloids for which limit values have not been set but no information about its applicability is provided in this case.NOTE The sample preparation methods described in th

33、is part of ISO 15202 are generally suitable for use with analytical techniques other than ICP-AES, e.g. atomic absorption spectrometry (AAS) by ISO 85185and ISO 1117410and inductively coupled plasma mass spectrometry (ICP-MS) by ISO 3001111.1.2 The method specified in Annex B is applicable when maki

34、ng measurements for comparison with limit values for soluble metal or metalloid compounds.1.3 One or more of the sample dissolution methods specified in Annexes C through H are applicable when making measurements for comparison with limit values for total metals and metalloids and their compounds. I

35、nformation on the applicability of individual methods is given in the scope of the annex in which the method is specified.1.4 The following is a non-exclusive list of metals and metalloids for which limit values have been set (see References 15 and 16) and for which one or more of the sample dissolu

36、tion methods specified in this part of ISO 15202 are applicable. However, there is no information available on the effectiveness of any of the specified sample dissolution methods for those elements in italics.INTERNATIONAL STANDARD ISO 15202-2:2012(E) ISO 2012 All rights reserved 1BS ISO 15202-2:20

37、12ISO 15202-2:2012(E)Aluminium Calcium Magnesium Selenium TungstenAntimony Chromium Manganese Silver UraniumArsenic Cobalt Mercury Sodium VanadiumBarium Copper Molybdenum Strontium YttriumBeryllium Hafnium Nickel Tantalum ZincBismuth Indium Phosphorus Tellurium ZirconiumBoron Iron Platinum Thallium

38、Caesium Lead Potassium Tin Cadmium Lithium Rhodium Titanium ISO 15202 is not applicable to the determination of elemental mercury or arsenic trioxide, since mercury vapour and arsenic trioxide vapour are not collected using the sampling method specified in ISO 15202-1.2 Normative referencesThe follo

39、wing referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 15202-1, Workplace air Determination of metals and meta

40、lloids in airborne particulate matter by inductively coupled plasma atomic emission spectrometry Part 1: SamplingISO 15202-3, Workplace air Determination of metals and metalloids in airborne particulate matter by inductively coupled plasma atomic emission spectrometry Part 3: AnalysisEN 13890, Workp

41、lace exposure Procedures for measuring metals and metalloids in airborne particles Requirements and test methods3 Terms and definitionsFor the purposes of this part of ISO 15202, the following terms and definitions apply.3.1analysisall operations carried out after sample preparation to determine the

42、 amount or concentration of the analyte(s) of interest present in the sampleNOTE Adapted from EN 14902:200514, 3.1.1.3.2analytical recoveryratio of the mass of analyte measured in a sample to the known mass of analyte in that sampleNOTE The analytical recovery is usually given as a percentage.EN 154

43、0:2011132 ISO 2012 All rights reservedBS ISO 15202-2:2012ISO 15202-2:2012(E)3.3chemical agentany chemical element or compound, on its own or admixed as it occurs in the natural state or as produced, used, or released including release as waste, by any work activity, whether or not produced intention

44、ally and whether or not placed on the marketCouncil Directive 98/24/EC17, Art. 2(a)3.4exposure by inhalationsituation in which a chemical agent is present in the air that is inhaled by a personNOTE Adapted from EN 1540:201113.3.5occupational exposure limit valuelimit valuelimit of the time-weighted

45、average of the concentration of a chemical agent in the air within the breathing zone of a worker in relation to a specified reference periodCouncil Directive 98/24/EC17, Art. 2(d)EXAMPLES Threshold Limit Values(TLVs) established by the ACGIH15and Indicative Occupational Exposure Limit Values (IOELV

46、s) promulgated by the European Commission (Council Directive 2006/15/EC16).3.6measuring procedure measurement procedure set of operations, described specifically, for the sampling and analysis of chemical agents in airNOTE 1 A measuring procedure for the sampling and analysis of chemical agents in a

47、ir usually includes the following steps: preparation for sampling, sampling, transportation and storage, preparation of samples for analysis and analysis.NOTE 2 Adapted from EN 1540:201113.3.7air samplersamplerdevice for separating chemical agents from the surrounding airNOTE 1 Air samplers are gene

48、rally designed for a particular purpose, e.g. for sampling gases and vapours or for sampling airborne particles.NOTE 2 Adapted from EN 1540:201113.3.8sample dissolutionprocess of obtaining a solution containing all analytes of interest from a sample, which might or might not involve complete dissolu

49、tion of the sample3.9sample preparationall operations carried out on a sample, usually after transportation and storage, to prepare it for analysis, including transformation of the sample into a measurable state, where necessaryNOTE Adapted from EN 14902:200514, 3.1.24.3.10sample solutionsolution prepared from a sample by the process of sample dissolutionNOTE 1 A sample solution might need to be subjected to further operations, e.g. dilution, or addition, or both, of an interna