1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 5667-21:2010Water quality SamplingPart 21: Guidance on sampling of drinkingwater distributed by tankers or means otherthan distribution pipesBS ISO 5667-21:2010 BRITISH ST
2、ANDARDNational forewordThis British Standard is the UK implementation of ISO 5667-21:2010.The UK participation in its preparation was entrusted to TechnicalCommittee EH/3/6, Sampling (of technical committee EH/3 - Waterquality).A list of organizations represented on this committee can beobtained on
3、request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 60101 9ICS 13.060.20; 13.060.45Compliance with a British Standard cannot confer immunity fromlegal obligations.Thi
4、s British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2010.Amendments issued since publicationDate Text affectedBS ISO 5667-21:2010Reference numberISO 5667-21:2010(E)ISO 2010INTERNATIONAL STANDARD ISO5667-21First edition2010-10-15Water qual
5、ity Sampling Part 21: Guidance on sampling of drinking water distributed by tankers or means other than distribution pipes Qualit de leau chantillonnage Partie 21: Lignes directrices pour lchantillonnage de leau potable distribue par camions-citernes ou dautres moyens que les tuyaux de distribution
6、BS ISO 5667-21:2010ISO 5667-21:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing
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9、riat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2010 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 and microfilm, without permission in writing
10、 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 ii ISO 2010 All rights reservedBS ISO 5667-2
11、1:2010ISO 5667-21:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv Introductionvi 1 Scope1 2 Normative references1 3 Terms and definitions .2 4 Monitoring programme design 2 5 Sampling equipment .2 6 Sampling programme design.3 6.1 General .3 6.2 Frequency and timing of sampling3 6.
12、3 Location of sampling points.3 6.4 Pre-collection cleaning, disinfection, and flushing .5 6.5 Assessment of hazards 6 7 Sample collection and handling 6 7.1 General .6 7.2 Volume of samples7 8 Field measurements9 9 Safety precautions 9 10 Sample identification and records.10 11 Quality assurance an
13、d quality control for collection and handling of samples.10 11.1 General .10 11.2 Sampling manual.10 11.3 Training of samplers .11 11.4 Independent audits11 Annex A (informative) Examples of hazard factors associated with failure to clean and disinfect tanks between fillings, including refilling bef
14、ore emptying12 Annex B (informative) Example of a sampling report .13 Annex C (informative) Guidance on the sampling of biofilms .14 Bibliography15 BS ISO 5667-21:2010ISO 5667-21:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide f
15、ederation 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 represented on that co
16、mmittee. 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 are drafted in accor
17、dance 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 International Standard requir
18、es 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 5667-21 was prepared by Technic
19、al Committee ISO/TC 147, Water quality, Subcommittee SC 6, Sampling (general methods). ISO 5667 consists of the following parts, under the general title Water quality Sampling: Part 1: Guidance on the design of sampling programmes and sampling techniques Part 3: Guidance on the preservation and hand
20、ling of water samples Part 4: Guidance on sampling from lakes, natural and man-made Part 5: Guidance on sampling of drinking water from treatment works and piped distribution systems Part 6: Guidance on sampling of rivers and streams Part 7: Guidance on sampling of water and steam in boiler plants P
21、art 8: Guidance on the sampling of wet deposition Part 9: Guidance on sampling from marine waters Part 10: Guidance on sampling of waste waters Part 11: Guidance on sampling of groundwaters Part 12: Guidance on sampling of bottom sediments Part 13: Guidance on sampling of sludges Part 14: Guidance o
22、n quality assurance of environmental water sampling and handling Part 15: Guidance on the preservation and handling of sludge and sediment samples Part 16: Guidance on biotesting of samples BS ISO 5667-21:2010ISO 5667-21:2010(E) ISO 2010 All rights reserved v Part 17: Guidance on sampling of bulk su
23、spended solids Part 19: Guidance on sampling of marine sediments Part 20: Guidance on the use of sampling data for decision making Compliance with thresholds and classification systems Part 21: Guidance on sampling of drinking water distributed by tankers or means other than distribution pipes Part
24、22: Guidance on the design and installation of groundwater monitoring points Part 23: Guidance on passive sampling BS ISO 5667-21:2010ISO 5667-21:2010(E) vi ISO 2010 All rights reservedIntroduction ISO 5667 deals with the general aspects of sampling (see ISO 5667-1 and ISO 5667-3) and with the sampl
25、ing of specific types of water (ISO 5667-4 onwards). This part of ISO 5667 is one of the specific water-type sampling parts, and deals with the sampling of drinking water, with or without prior treatment, when the water is supplied by means other than a piped distribution system contiguous to a wate
26、r source. This part of ISO 5667 should be read in conjunction with ISO 5667-1, ISO 5667-3 and ISO 5667-5. Effective monitoring of drinking water requires collaboration between sampling programme designers, water operators including transporters and water couriers, sample collectors, laboratory analy
27、sts, and data users. This part of ISO 5667 gives guidance on the selection of sampling locations and the collection of samples when monitoring drinking water. Understanding the purposes for monitoring drinking water and the principles behind the methods of analysis is important, since specific sampl
28、ing protocols can vary widely in accordance with different purposes and different analytical methods. Examples of sampling purposes include: a) searching for the cause of pollution within the distribution chain (e.g. in response to customer complaints); b) monitoring the quality of drinking water in
29、 storage and at the point of use on ships, aircraft and other vessels and vehicles that provide water for drinking, washing, cooking or other purposes; c) assessing the effects of materials in contact with the water on its quality; d) assessing the integrity of a non-contiguous distribution chain. A
30、n important factor to take into account is that the potential for microbial regrowth due to faecal contamination of drinking water is always present and constitutes a genuine risk to human health. Chemical contamination events also occur, but these are likely to pose chronic hazards rather than the
31、acute effects generated by faecal contamination. BS ISO 5667-21:2010INTERNATIONAL STANDARD ISO 5667-21:2010(E) ISO 2010 All rights reserved 1Water quality Sampling Part 21: Guidance on sampling of drinking water distributed by tankers or means other than distribution pipes 1 Scope This part of ISO 5
32、667 establishes principles to be applied to the techniques of sampling water provided for drinking and for use in the manufacture of food and beverage products. The guidance given in this part of ISO 5667 is generally confined to those circumstances where water is drawn from municipal or similar pub
33、lic or private abstraction, treatment or distribution systems for which prior treatment or quality assessment has resulted in the water being classified as suitable for drinking or potable process purposes. Specifically, this part of ISO 5667 is applicable to water that is supplied by tanker or othe
34、r non-contiguous bulk means, but not contiguously as part of a piped distribution system, during any stage of use up to and including the point of consumption or transfer to a piped distribution system. This part of ISO 5667 is also applicable to the distribution and bulk storage of water on aircraf
35、t, trucks, trains, ships, and other vessels and vehicles, as well as to sampling situations that can arise during the investigation of system defects, initiation of new systems, re-initiation of systems that have been unused for long periods or emergency situations where the safety of sampling opera
36、tives is not compromised. This part of ISO 5667 does not provide guidance on: a) the sampling of source water, e.g. groundwater and impoundments; b) the sampling of potable water supplies derived from contiguous piped supplies covered by ISO 5667-5; c) the sampling of beverage products (including bo
37、ttled waters) or food containing potable water used in its preparation; d) the sampling of drink vending machines. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated refer
38、ences, the latest edition of the referenced documents (including any amendments) applies. ISO 5667-1, Water quality Sampling Part 1: Guidance on the design of sampling programmes and sampling techniques ISO 5667-3, Water quality Sampling Part 3: Guidance on the preservation and handling of water sam
39、ples ISO 5667-5:2006, Water quality Sampling Part 5: Guidance on sampling of drinking water from treatment works and piped distribution systems BS ISO 5667-21:2010ISO 5667-21:2010(E) 2 ISO 2010 All rights reservedISO 5667-14, Water quality Sampling Part 14: Guidance on quality assurance of environme
40、ntal water sampling and handling ISO/TS 13530, Water quality Guidance on analytical quality control for chemical and physicochemical water analysis ISO 15553, Water quality Isolation and identification of Cryptosporidium oocysts and Giardia cysts from water ISO 15839, Water quality On-line sensors/a
41、nalysing equipment for water Specifications and performance tests ISO 19458, Water quality Sampling for microbiological analysis 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 conventional water distribution water distribution via a contiguo
42、us system of pipes and works from source to use 3.2 drinking water water intended for human consumption ISO 24510:20073, 2.11 3.3 non-contiguous water distribution water distribution where there is no continuous system of pipes and works from source to use EXAMPLE Distribution by tanker truck. 3.4 p
43、otable process water water abstracted without treatment, or applied after treatment, in the food or beverage manufacturing industries, but excluding that contained within the end-product food and beverage, or the products themselves NOTE Adapted from ISO 5667-5:2006, 2.3. 4 Monitoring programme desi
44、gn Refer to ISO 5667-1 regarding the design of monitoring programmes, including statistical considerations. 5 Sampling equipment Refer to ISO 5667-1 and ISO 5667-3 regarding sampling equipment, requirements for containers and materials in contact with the sample, and cleaning of sample containers. R
45、efer to ISO 15839 regarding performance characteristics for analysing equipment, and to ISO 19458 regarding equipment, bottles, and sterilization requirements specific to sampling for microbiological analysis. BS ISO 5667-21:2010ISO 5667-21:2010(E) ISO 2010 All rights reserved 36 Sampling programme
46、design 6.1 General Be aware that sampling locations, national regulations, and local safety regulations influence the methods of sample collection employed. Before collection of samples, decide whether some of the analyses are to be performed on site. Be aware of any national regulations requiring o
47、n-site analysis. When collecting samples for microbiological analysis, also be aware of ISO 19458. 6.2 Frequency and timing of sampling The sampling frequency depends, among other factors, on: a) the purpose for which sampling is being performed; b) the number of consumers served; c) the volume of w
48、ater distributed; d) the quality of the source water; e) the variability of the raw-water quality; f) the water treatment required; g) the health hazard involved; h) the complexity and characteristics of the specific distribution system being sampled; i) specific parameters. Detailed guidance, inclu
49、ding statistical considerations, is given in ISO 5667-1. National or regional legislation, whichever has precedence, should be followed. Note that the minimum frequencies for different parameters need not be the same. For detailed guidance on assessment of hazards, see 6.5. 6.3 Location of sampling points 6.3.1 General Choose sample collection locations to yield samples that are representative of the quality of the water contained in the bulk storage cont
