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BS ISO 23919:2020 Cigarettes. Determination of ammonia in cigarette mainstream smoke using ion chromatography, 2020
- National foreword
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Apparatus
- 6 Reagents
- 7 Preparation [Go to Page]
- 7.1 General
- 7.2 Preparation of solutions [Go to Page]
- 7.2.1 Sulphuric acid, 0,01 M — Impinger solution (trapping system 1)
- 7.2.2 Sulphuric acid, 0,1 M — Solution C (Ion chromatography eluent)
- 7.2.3 MSA 0,003 M — Solution A (Ion chromatography eluent)
- 7.2.4 Sulphuric acid, 0,01 M — Ammonium standards preparation
- 7.2.5 Hydrochloric acid, 0,05 M — Solution for glass fibre filter pad impregnation (trapping system 2)
- 7.2.6 Hydrochloric acid, 0,01 M — Extraction solution (trapping system 2)
- 7.3 Preparation of standards [Go to Page]
- 7.3.1 Primary ammonium stock solution
- 7.3.2 Calibration standards
- 8 Sampling
- 9 Tobacco product preparation
- 10 Sample generation — Smoking of cigarettes [Go to Page]
- 10.1 General
- 10.2 Smoking machine setup [Go to Page]
- 10.2.1 Trapping system 1 — Glass fibre filter pad and impinger traps
- 10.2.2 Trapping system 2 — Impregnated glass fibre filter pad
- 10.3 Smoking
- 11 Sample analysis [Go to Page]
- 11.1 Preparation of sample [Go to Page]
- 11.1.1 Extraction of glass fibre filter pad — Trapping system 1
- 11.1.2 Extraction of glass fibre filter pad — Trapping system 2
- 11.2 Determination [Go to Page]
- 11.2.1 Ion chromatography operating conditions
- 11.2.2 Calibration
- 11.2.3 Calculation
- 12 Repeatability and reproducibility [Go to Page]
- 12.1 General
- 12.2 Results of the 2015 collaborative study
- 13 Report
- Annex A (informative) Examples of chromatograms
- Bibliography [Go to Page]
