IEC 60710:1981

Contents
Foreword
Preface
Chapter 1: General
Clause
1. Scope
2. Object
3. Terminology
4. Qualification tests
5. Acceptance tests
6. Units
7. Classification of equipment
Chapter II: Equipment for the Measuring and Monitoring of
Airborne Tritium
Section One - General Characteristics
8. Principle of measurement
9. Description of the equipment and its assemblies
10. Ease of decontamination
11. Acoustic noise level of the equipment
12. Mass and dimensions
Section Two - Technical Characteristics
13. Accuracy
14. Other requirements
Section Three - Sampling and Detection Assembly
15. Sampling and exhaust pipes
16. Inlet filters
17. Tritiated water vapour trap
18. Air pump
19. Flow control and measurement devices
20. Detector
21. Ambient y radiation
Section Four - Control and Measurement Assembly
22. Expression of measurement
23. Effective range of measurement
24. Alarm sub-assemblies (monitors)
25. Additional indication facilities
26. Remote indication facilities
27. Setting-up and maintenance facilities
28. Overload protection
Chapter III: Test Procedures
Section Five - General
29. Test conditions
Section Six - Performance Characteristics
30. Accuracy of response to appropriate activity
31. Response to different chemical forms of tritium
32 Response to radioactive gas other than tritium
33. Response to ambient gamma radiation
34. Response time
35. Test for saturation and of susceptibility to gaseous
    contamination
Section Seven - Electrical Characteristics
36. Statistical fluctuations
37. Warm-up
38. Power supply
39. Zero drift
40. Stability of indication
41. Tests on indication and alarm devices
42. Alarm trip stability
Section Eight - Environmental Characteristics
43. Ambient temperature
44. Relative humidity
45. Atmospheric pressure
Section Nine - Tests of the Air Circuit
46. Control and adjustment range of the flow rate
Section Ten - Identification Certificate
47. Identification certificate
Tables
Appendix A - Preparation of titrium test sources

Lays down mandatory requirements and gives examples of acceptable methods for measuring and monitoring equipment to enable the determination of the average value of the concentration of atmospheric tritium in working areas and its variation as a function of time, and to actuate an alarm system if necessary.