SZNS ISO 5667-1:2006 Water quality – Sampling– Part 1: Guidance on the design of sampling programmes and sampling techniques

E453.63

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Description

This part of ISO 5667 sets out the general principles for, and provides guidance on, the design of sampling programmes and sampling techniques for all aspects of sampling of water (including waste waters, sludges, effluents and bottom deposits).

It does not include detailed instructions for specific sampling situations, which are covered in the various other parts of ISO 5667. Also, it does not include microbiological sampling, which is covered in ISO 19458 [23].

Contents                                                                                                                            Page                                                                                                         

1 Scope………………………………………………………………………………………………………………………………………………  1

2Normative references……………………………………………………………………………………………………………………  1

3 Terms & Definations……………………………………………………………………………………………………………………  1

4 General safety precautions…………………………………………………………………………………………………………  1

5 Design of sampling programmes……………………………………………………………………………………………… 3

5.1General………………………………………………………………………………………………………………………………………… 3

5.2 Broad objectives for the design of sampling programmes……………………………………………..  3

5.3 Specific considerations in relation to variability…………………………………………………………………. 5

5.4 Identifying the sampling location…………………………………………………………………………………………. 6

6.Characteristics and conditions affecting sampling ……………………………………………………………….. 6

7 Sampling from specific types of water…………………………………………………………………………………..   7

7.1Natural waters……………………………………………………………………………………………………………………………. 7

7.2 Processed waters ……………………………………………………………………………………………………………………….7

8 Time and frequency of sampling ……………………………………………………………………………………………….9

8.1 General……………………………………………………………………………………………………………………………………….. 9

8.2 Water quality management programmes …………………………………………………………………………….9

8.3 Quality characterization programmes…………………………………………………………………………………  10

8.4 Programmes for investigation of causes of contamination…………………………………………….  10

8.5 Statistical considerations……………………………………………………………………………………………………….  10

8.6 duration of sampling occasions and composite samples……………………………………………….   13

9 Flow measurements and situations justifying flow measurements for water………………….. 13

9.1 General……………………………………………………………………………………………………………………………………….. 13

9.2 Direction of flow……………………………………………………………………………………………………………………..   13

9.3 Velocity of water……………………………………………………………………………………………………………………….. 13

9.4 Discharge rate……………………………………………………………………………………………………………………………..14

9.5 flow structure……………………………………………………………………………………………………………………………….14

9.6 Cross sectional area ……………………………………………………………………………………………………………………14

9.7 Justification for flow measurements in water control management………………………………….14

9.8 Methods available for flow measurement…………………………………………………………………………….. 15

10 Sampling techniques………………………………………………………………………………………………………………….. 16

10.1 General………………………………………………………………………………………………………………………………………. 16

10.2 Spot samples…………………………………………………………………………………………………………………………….  17

10.3 Periodic samples ( discontinuous)…………………………………………………………………………………………. 17

10.4 Continuous samples………………………………………………………………………………………………………………… 17

10.5 Series sampling………………………………………… …………………………………………………………………………….. 18

10.6 Composite samples…………………………………………………………………………………………………………………. 18

10.7 Large volume samples…………………………………………………………………………………………………………….  18

11 Sampling equipment…………………………………………………………………………………………………………………… 19

12 Sampling equipment for physical or chemical characteristics…………………………………………….  21

13 Avoidance of contamination…………………………………………………………………………………………………….. 25

14 Transport to , and storage of samples at, the depot or laboratory…………………………………… 26

15 Sample identification and records………………………………………………………………………………………….  26

Annex A ( informative) Diagrams illustrating types of periodic and continuous samples…  28

Bibliography…………………………………………………………………………………………………………………………………….  30

 

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