1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 13346:2000 The Euro
2、pean Standard EN 13346:2000 has the status of a British Standard ICS 13.030.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Characterization of sludges Determination of trace elements and phosphorus Aqua regia extraction methodsThis British Standard, having been prepared un
3、der the direction of the Health and Environment Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 October 2000 BSI 10-2000 ISBN 0 580 36291 4 BS EN 13346:2000 Amendments issued since publication Amd. No. Date Comments National foreword This Br
4、itish Standard is the official English language version of EN 13346:2000. The UK participation in its preparation was entrusted to Technical Committee EH/5, Sludge characterization, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee a
5、ny enquiries on the interpretation, or proposals for change, and 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. Further informati
6、on Users of this standard are informed that the UK submitted some substantial comments at the final voting stage of the draft EN for the following reasons. 1) The scope fails to address the question of whether this method is appropriate for all of the types of sludges in the scope of CEN/TC 308. For
7、 example, is it applicable to sludges containing large amounts of lime? Hence, modify the scope to answer the question of applicability to the scope of the TC. 2) The following note should be added to the scope: “The validation for this standard has only been carried out using materials as described
8、 in annex A. For other sludges, the user should validate the method using recovery and reproducibility tests”. 3) The final phrase, “and sludge products,” in the first sentence of the scope should be removed as it is inappropriate. 4) This is not a single standard since there are 4 alternative metho
9、ds of extraction and 3 alternative methods of pretreatment. The test report in clause 12 should therefore specify which of the 12 permutations has been used. Therefore, either rewrite c) as “describe which method of pretreatment and which method of digestion was used” or modify the document so that
10、there is only one standard method against which others may be benchmarked. 5) In annex D, the data presented for Method D with reference materials appear to condemn this method as unfit since it is almost invariably outside the 95% confidence of the reference sample. Therefore, suggest deleting Meth
11、od D. 6) It is recommended that an additional brief section on the use of adequate AQC as per CEN/TC 223 methods be added: “The analysis described in this standard should be carried out within a quality control system utilizing analytical quality control measures. Where performance data are absent f
12、or the sample type, recovery and reproducibility data should be obtained as a minimum”.BS EN 13346:2000 BSI 10-2000 i Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the secti
13、on entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.
14、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 EN title page, pages 2 to 29 and a back cover. The BSI copyright notice displayed in this document indicate
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