NS EN 14042 : 1ED 2003

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement objectives and strategy
   4.1 General
   4.2 EN 689
   4.3 EN 482
   4.4 Other tasks
5 Selection of the measurement procedure or device
   5.1 General
   5.2 Selection flow chart
   5.3 Selectivity requirements
   5.4 The influence of environmental parameters
   5.5 Fitness for purpose
6 Operating principles and characteristics
   6.1 General
   6.2 Measurement of chemical agents
   6.3 Measurement of airborne micro-organisms and endotoxin
7 Operation of the measuring devices
   7.1 Guidance for use of measuring procedures and personal,
        portable and transportable measuring devices
   7.2 Guidance for use of fixed measuring devices
8 Recommendations on the use of sampling pumps
   8.1 General
   8.2 Factors influencing the flow rate stability of a pump
   8.3 Flow rate calibration
   8.4 Calculation of flow rates and sampling volumes
9 Maintenance and calibration
10 Disposal of measuring devices
11 Requirements for training
12 Quality assurance
Bibliography

Gives guidance on the selection of procedures and the installation, use and maintenance of devices for the determination of concentrations of chemical or biological agents in workplace atmospheres.