BS ISO 5667-21:2010

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Monitoring programme design
5 Sampling equipment
6 Sampling programme design
7 Sample collection and handling
8 Field measurements
9 Safety precautions
10 Sample identification and records
11 Quality assurance and quality control for
   collection and handling of samples
Annex A (informative) - Examples of hazard factors
        associated with failure to clean and disinfect
        tanks between fillings, including refilling before
        emptying
Annex B (informative) - Example of a sampling report
Annex C (informative) - Guidance on the sampling of biofilms
Bibliography

Specifies principles to be applied to the techniques of sampling water provided for drinking and for use in the manufacture of food and beverage products.

This part of ISO5667 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 ISO5667 is generally confined to those circumstances where water is drawn from municipal or similar public 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 ISO5667 is applicable to water that is supplied by tanker or other 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 ISO5667 is also applicable to the distribution and bulk storage of water on aircraft, 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 operatives is not compromised. This part of ISO5667 does not provide guidance on: the sampling of source water, e.g. groundwater and impoundments; the sampling of potable water supplies derived from contiguous piped supplies covered by ISO5667-5; the sampling of beverage products (including bottled waters) or food containing potable water used in its preparation; the sampling of drink vending machines.