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BS ISO 16702:2007
Current
The latest, up-to-date edition.
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Workplace air quality. Determination of total organic isocyanate groups in air using 1-(2-methoxyphenyl) piperazine and liquid chromatography
Hardcopy , PDF
English
31-03-2008
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Sampling
7.1 Calibration of pump
7.2 General
7.3 Preparation of sampling equipment (general)
7.4 Preparation of sampling equipment (filters)
7.5 Preparation of sampling equipment (impingers)
7.6 Collection of filter samples (vapour phase samples)
7.7 Collection of impinger backed by filter samples
(isocyanate aerosols)
7.8 Measurements to be made at the end of the sampling
period
7.9 Sample logging and field desorption of samples
7.10 Transportation
7.11 Field Blanks
8 Procedure
8.1 Safety precautions
8.2 Cleaning of glassware
8.3 Prereaction of impinger samples before HPLC analysis
8.4 Prereaction of filter samples before HPLC analysis
8.5 HPLC conditions
8.6 Determination of airborne isocyanate for monomeric
isocyanates (UV detection)
8.7 Identification of polymeric isocyanates: EC/UV ratio
approach
8.8 Confirmation of identification for polymeric isocyanates
(prepolymers)
8.9 Quantification of airborne isocyanate for polymeric
isocyanates (EC detection)
8.10 Sampling efficiency
9 Calculations
10 Interferences
11 Uncertainty of measurement
11.1 Introduction
11.2 Assessment of performance characteristics of the method
- Sampling considerations (detailed ISO/IEC Guide 98:1995
approach)
11.3 Assessment of performance characteristics of the method -
- Other considerations - (detailed ISO/IEC Guide 98:1995
approach)
11.4 Mass of compound in field sample blank
11.5 Between-laboratory uncertainty contributions
11.6 Combined uncertainty
11.7 Expanded uncertainty
12 Stability
13 Test report
14 Quality control
Annex A (informative) - Determination of sampling efficiency
Annex B (informative) - Data used for uncertainty estimates
Annex C (informative) - Combined uncertainties for isocyanate
formulations
Annex D (informative) - Sample chromatograms
Bibliography
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