BS ISO 1136:2015
$142.49
Wool. Determination of mean diameter of fibres. Air permeability method
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 26 |
This International Standard specifies a method for the determination of the mean diameter of wool fibres, using an apparatus which passes a current of air through a bundle of fibres.
This International Standard is applicable to clean, unmedullated wool fibres dispersed in a uniform, open state. It provides a method particularly suitable for combed slivers. The dichloromethane extractable matter content of the specimen must not exceed 1,0 %. It is applicable to oil-combed slivers after cleaning with an organic solvent.
The method described in this International Standard is less accurate for lambswool and for wool which is appreciably medullated (see Annex D) and heavily dyed wool.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle |
| 10 | 5 Apparatus 5.1 Forms of apparatus 5.2 Detailed parts |
| 12 | 6 Conditioning and testing atmosphere 7 Preparation of test specimens 7.1 Unopened sliver 7.1.1 Cleaning 7.1.2 Number of specimens |
| 13 | 7.1.3 Selection of specimens 7.1.4 Specimen mass 7.1.5 Preparation 7.2 Opened sliver 7.2.1 Cleaning 7.2.2 Preparation 7.2.3 Number of specimens 7.2.4 Selection of specimens 7.2.5 Specimen mass |
| 14 | 8 Procedure 8.1 Unopened sliver 8.2 Opened sliver |
| 15 | 9 Expression of results 10 Test report |
| 16 | Annex A (informative) Calibration of apparatus |
| 19 | Annex B (informative) Reproducibility of results |
| 20 | Annex C (normative) Correction for relative humidity |
| 21 | Annex D (informative) Special types of wool |
| 22 | Annex E (informative) Reference slivers for calibration |
| 23 | Bibliography |
