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Tobacco particle testing standards are published by ISO and BS. The ISO documents cover determination of dry particulate matter in cigarettes using analytical smoking machines, determination of strip particle size in leaf tobacco, and determination of silicate residue. BS publishes a document for methods for chemical analysis of tobacco in regards to silicate residue.
This document specifies methods for the determination of total particulate matter and for the subsequent determination of nicotine-free dry particulate matter present in the smoke from cigarettes generated and collected using a routine analytical smoking machine. This method is a machine method and allows cigarettes to be smoked using a strictly controlled set of parameters. Thus, it enables the NFDPM and nicotine from cigarettes, when smoked by this procedure, to be compared and ranked on the basis of machine yield.
Specifies a method for the measurement of the particle size of strips of leaf tobacco. Samples of strips are separated into five particle sizes by passing them over four screens.
This International Standard specifies a method for the determination of the percentage of hydrochloric-acid-insoluble extraneous silica particles, especially particles of sand, in tobacco (whole leaf, cut tobacco, tobacco scraps and dust) and tobacco products. It is particularly useful to know the proportion of these residues, in the following circumstances: when buying tobacco leaves, in order to check the cleanness; before processing tobacco and tobacco products.
This International Standard specifies a method for the determination of the percentage of hydrochloric-acid-insoluble extraneous silica particles, especially particles of sand, in tobacco (whole leaf, cut tobacco, tobacco scraps and dust) and tobacco products. It is particularly useful to know the proportion of these residues, in the following circumstances: when buying tobacco leaves, in order to check the cleanness; before processing tobacco and tobacco products.