Tobacco and tobacco products. Determination of nicotine purity. Gravimetric method using tungstosilicic acid Ingestion-build-225643 fluoroethylene/vinyl ether co-polymer and polysiloxanes)

fluoroethylene/vinyl ether co-polymer and polysiloxanes)

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or loosening of the runner after the tests

This document specifies the methodology for the statistical comparison of standard deviation under reproducibility conditions achieved in PT programmes versus that published

BS EN ISO 22117:2019 supersedes DD CEN ISO/TS 22117:2010

Tobacco and tobacco products. Determination of nicotine purity. Gravimetric method using tungstosilicic acid Ingestion-build-225643 fluoroethylene/vinyl ether co-polymer and polysiloxanes)1 Scope This document specifies a method for the gravimetric determination of the purity of nicotine using tungstosilicic acid. The method is applicable to pure nicotine or nicotine salts used to calibrate analytical methods for the determination of nicotine in the field of tobacco, tobacco products and smoke analysis.