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BS ISO 2965:2019 – TC:2020 Edition

BS ISO 2965:2019 – TC:2020 Edition

$217.84

Tracked Changes. 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 2020 0
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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
37 undefined
41 Foreword
42 Introduction
44 1 Scope
2 Normative references
3 Terms and definitions
45 4 Principle
47 5 Apparatus
48 6 Sampling
7 Procedure
7.1 General
7.2 Leak check of the test piece holder
7.3 Preparation of test pieces
49 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
50 7.6 Measurement
7.6.1 General
51 7.6.2 Measurement of strips
7.6.3 Measurement of spills (papers recovered from manufactured products)
8 Expression of results
52 9 Precision
9.1 Repeatability
9.2 Reproducibility
9.3 Results of an interlaboratory study (Study 1)
54 9.4 Statistical discussion of r and R results for Study 1
9.5 Results of an interlaboratory study (Study 2)
55 9.6 Statistical discussion of r and R results for Study 2
56 10 Test report
57 Annex A (normative) Leak testing of test piece holder
59 Annex B (normative) Calibration of air permeability standards and air permeability measuring instruments
63 Annex C (informative) Determination of relevant surface leakage of test piece in the test piece holder
65 Annex D (informative) Flow of air through porous materials
67 Annex E (informative) Compensation of calibration standards
70 Bibliography

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BS ISO 2965:2019 - TC
$217.84