BS 6691-2:1986

Foreword
Committees responsible
Guide
1 Scope
2 Summary of analytical techniques
2.1 General
2.2 Detector tubes
2.3 Instrumental methods
2.4 Chemical methods
2.5 Interference
2.6 Calibration
3 Basic requirements of sampling
3.1 General
3.2 Sampling periods
3.3 Breathing zone sampling
3.4 Static background sampling
3.5 Sample filtration
3.6 Multiple sampling
3.7 Sampling materials
3.8 Volume of sampling line
3.9 Sampling pump and rate
4 Analysis of individual gases
4.1 Ozone (0.01 p.p.m. to 3 p.p.m.)
4.2 Carbon monoxide (5 p.p.m. to 500 p.p.m.)
4.3 Carbon dioxide (500 p.p.m. to 10 000 p.p.m.)
4.4 Nitric oxide (1 p.p.m. to 100 p.p.m.) and nitrogen
     dioxide (0.5 p.p.m. to 250 p.p.m.)
5 Recording of test data and presentation of results
6 Literature references
Appendices
A Oxygen
B Example of completed welding fume data form
C Bibliography

Recommends sampling procedures and suggests methods of analysis for carbon and nitrogen oxides and ozone in pollutant concentrations likely to be found during welding. An appendix gives detailed literature references.