BS-7164-30.1-1997 ISO-6101-2-1997.pdf
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1、BRITISH STANDARD BS 7164-30.1: 1997 ISO 6101-2: 1997 Chemical tests for raw and vulcanized rubber Part 30: Methods for determination of lead content Section 30.1 Atomic absorption spectrometry ICS 83.040.10; 83.060 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08
2、 14:36:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7164-30.1:1997 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 August 1997 BSI 09-1999 ISBN 0
3、580 28066 7 National foreword This British Standard reproduces ISO 6101-2:1997 “Rubber Determination of metal content by atomic absorption spectrometry Part 2: Determination of lead content” and implements it as the UK national standard. It supersedes BS 7164-30.1:1990 which is withdrawn. The UK par
4、ticipation in its preparation was entrusted to Technical Committee PRI/23, Chemical testing of rubber, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and
5、keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European p
6、ublications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary pro
7、visions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard 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, the ISO title
8、page, pages ii to iv, pages 1 to 5 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: London S
9、outh Bank University, London South Bank University, Fri Dec 08 14:36:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7164-30.1:1997 BSI 09-1999i Contents Page National forewordInside front cover Forewordiii Text of ISO 6101-21 Licensed Copy: London South Bank University, London South Bank Universit
10、y, Fri Dec 08 14:36:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 14:36:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 1
11、4:36:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7164-30.1:1997 ii BSI 09-1999 Contents Page Forewordiii 1Scope1 2Normative references1 3Principle1 4Reagents1 5Apparatus2 6Sampling2 7Procedure2 8Expression of results4 9Test report4 Annex A (normative) Method of standard additions5 Figure A.1 Ex
12、ample of graph obtained using the method of standard additions5 Table 1 Standard calibration solutions3 Descriptors: Rubber, chemical analysis, determination of content, lead, atomic absorption spectrometric method. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 0
13、8 14:36:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7164-30.1:1997 BSI 09-1999iii Foreword ISO (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 t
14、hrough ISO technical committees. Each member body interested 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 colla
15、borates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by
16、 at least 75 % of the member bodies casting a vote. International Standard ISO 6101-2 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products. This second edition cancels and replaces the first edition (ISO 6101-2:1986), which has been technically revised. ISO 6101 consists of the
17、following parts, under the general title Rubber Determination of metal content by atomic absorption spectrometry: Part 1: Determination of zinc content; Part 2: Determination of lead content; Part 3: Determination of copper content; Part 4: Determination of manganese content; Part 5: Determination o
18、f iron content. Annex A forms an integral part of this part of ISO 6101. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 14:36:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri D
19、ec 08 14:36:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7164-30.1:1997 BSI 09-19991 WARNING Persons using this part of ISO 6101 should be familiar with normal laboratory practice. This part of ISO 6101 does not purport to address all of the safety problems, if any, associated with its use. It i
20、s the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. 1 Scope This part of ISO 6101 specifies an atomic absorption spectrometric method for the determination of the lead content of rubbers. The method i
21、s applicable to raw rubber and rubber products. There is no limit to the concentration of lead that can be determined. High or low concentrations may be determined, provided that suitable adjustments are made to the mass of the test portion and/or the concentration of the solutions used. The use of
22、the standard-additions method may lower the bottom limit of detection. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 6101. At the time of publication, the editions indicated were valid. All standards
23、 are subject to revision, and parties to agreements based on this part of ISO 6101 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 123:1985,
24、Rubber latex Sampling. ISO 247:1990, Rubber Determination of ash. ISO 648:1977, Laboratory glassware One-mark pipettes. ISO 1042:1983, Laboratory glassware One-mark volumetric flasks. ISO 1772:1975, Laboratory crucibles in porcelain and silica. ISO 1795:1992, Rubber, raw, natural and synthetic Sampl
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