ISO/TC 126/SC 2 - Leaf tobacco

This document specifies a method for the determination of the content of total alkaloids as nicotine in tobacco by continuous-flow analysis. This method is applicable to leaf samples, stems, reconstituted tobacco sheet materials and tobacco blends.

This document specifies the general principles to be applied when sampling batches of raw tobacco in order to assess either — the mean value of one or more of its characteristics, or — the heterogeneity of one or more of its characteristics. Manufactured tobacco products, including products intended for sale or distribution, are specifically not included in the scope of this document. This document is applicable to the sampling of batches of raw tobacco of the following types: a) leaf tobacco: flue cured; air cured; sun cured; fire cured; b) pretreated raw tobacco: which has undergone fermentation (in packages not intended for retail or wholesale sales or distribution, in bulk, in chambers); which has been partially or completely stemmed; which is in the form of stems; which is in the form of waste and remnants; which has been reconstituted in the form of strips.

ISO 15152:2003 specifies a method for the determination of the content of total alkaloids as nicotine in tobacco by continuous-flow analysis. This method is applicable to manufactured and unmanufactured tobacco.

ISO 15517:2003 specifies a method for the determination of the nitrate content in tobacco by continuous-flow analysis. This method is applicable to manufactured and unmanufactured tobacco.

ISO 15154:2003 specifies a method for the determination of the content of reducing carbohydrates in tobacco by continuous-flow analysis. This method is applicable to manufactured and unmanufactured tobacco.

ISO 15153:2003 specifies a method for the determination of the content of reducing substances in tobacco by continuous-flow analysis. This method is applicable to manufactured and unmanufactured tobacco.

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.

Describes a method for the measurement of the stem content of strips of leaf tobacco. The procedure consists of taking of a sample of tobacco strips and testing by means of a stem tester (thresher and separating tower).

This method is also applicable to the residues from maleic hydrazide sucker control agents used on tobacco crops. Annex A describes optional extra procedure such as acid pre-digestion and carbon clean-up, and Annex B includes some notes on the distillation procedure.

ISO 12030:2010 specifies a method for determining density variation ratio (DVR) of strips in the case.

Specifies the baling styles and specifications for manipulated oriental leaf tobacco.

Specifies the principle, the apparatus, the sample preparation, the preparation of the powder tablet, and the expression of results. Shows the device for making powder tablets (Annex A).

Specifies a method for the determination of natural starch in tobacco and tobacco products. Modified kinds of starch (phosphorylized or oxidized) do not react. Annex A is for information only.

Specifies a method for determination of form and size characteristics of oriental leaf tobacco from transplanting until used as raw material for cigarette manufacture. Applies to all oriental varieties.