BS ISO 2965:2019

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Materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having a discrete or oriented permeable zone and materials with bands of differing permeability. Determination of air permeability

Published By	Publication Date	Number of Pages
BSI	2019	36

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Description

This document specifies a method for the determination of air permeability (AP).

It is applicable to materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having an oriented permeable zone or discrete permeable zones where the measured permeability is in excess of 10 cm³·(min^?1·cm^?2) at 1 kPa. In addition, it is applicable to banded cigarette papers, with bands of a width of at least 4 mm.

NOTE

For an estimate of the air permeability of materials outside the scope of this document, see Note 3 in 5.1.2 and 7.6.1.4.

PDF Catalog

PDF Pages	PDF Title
2	National foreword
6	Foreword
7	Introduction
9	1 Scope 2 Normative references 3 Terms and definitions
10	4 Principle
12	5 Apparatus
13	6 Sampling 7 Procedure 7.1 General 7.2 Leak check of the test piece holder 7.3 Preparation of test pieces
14	7.4 Calibration 7.5 Insertion of a test piece 7.5.1 General 7.5.2 Materials with uniformly distributed permeability 7.5.3 Materials with a narrow and oriented permeable zone 7.5.4 Materials with an extended and oriented permeable zone 7.5.5 Materials with discrete permeable zones 7.5.6 Materials with bands of different air permeability
15	7.6 Measurement 7.6.1 General
16	7.6.2 Measurement of strips 7.6.3 Measurement of spills (papers recovered from manufactured products) 8 Expression of results
17	9 Precision 9.1 Repeatability 9.2 Reproducibility 9.3 Results of an interlaboratory study (Study 1)
19	9.4 Statistical discussion of r and R results for Study 1 9.5 Results of an interlaboratory study (Study 2)
20	9.6 Statistical discussion of r and R results for Study 2
21	10 Test report
22	Annex A (normative) Leak testing of test piece holder
24	Annex B (normative) Calibration of air permeability standards and air permeability measuring instruments
28	Annex C (informative) Determination of relevant surface leakage of test piece in the test piece holder
30	Annex D (informative) Flow of air through porous materials
32	Annex E (informative) Compensation of calibration standards
35	Bibliography

Additional information

Status	Under Review
Pages	36
Publication Date	2019-08-07
ISBN	978 0 580 98417 4
Standard Number	BS ISO 2965:2019
Title	Materials used as cigarette papers, filter plug wrap and filter joining paper, including materials having a discrete or oriented permeable zone and materials with bands of differing permeability. Determination of air permeability
Identical National Standard Of	ISO 2965
Replaces	BS ISO 2965:2009
Descriptors	Flow measurement, Reproducibility, Permeability measurement, Cigarette filters, Cigarettes, Leak tests, Cigarette paper, Air, Statistical methods of analysis, Air permeability, Test specimens, Specimen preparation, Tobacco testing, Tobacco, Paper, Control samples, Test equipment, Calibration, Equations, Gas flow, Testing conditions
Publisher	BSI
Committee	AW/40
ICS Codes	65.160 - Tobacco, tobacco products and related equipment

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BS ISO 2965:2019

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