ISO 11567:2018
Carbon fibre — Determination of filament diameter and cross-sectional area
This document specifies five test methods used for the determination of the diameter and cross-sectional area of single carbon fibre filaments.
The shape of the cross-section of the filaments from different suppliers can vary significantly. The term "diameter" used in this document applies to all cases, from a "true" diameter, where the filament is exactly circular in cross-section, to an "apparent" diameter where the filament is not circular.
The methods proposed are not necessarily directly applicable to all types of filament. The product specification determines the method to be used. If there is no specification, the selection of the appropriate method is a matter of judgement. The details given here are considered to be sufficiently precise to enable this choice to be made.
| Get this standard | Prices exclude GST | |
|---|---|---|
| PDF ( Single user document) |
$118.26 NZD
|
|
| HardCopy |
$152.17 NZD
|
|
| Networkable PDF |
Price varies
|
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test specimens
5.1 General
5.2 Method A
5.3 Methods B and D
5.4 Method C
5.5 Method E
6 Method A: Determination of the diameter by calculation
7 Method B: Determination of filament diameter by optical microscopy
7.1 Principle
7.2 Apparatus
7.3 Calibration of the microscope
7.4 Preparation of the test specimen
7.5 Procedure
7.6 Expression of results
8 Method C: Determination of the diameter and cross-sectional area of transversely cut filaments by microscopy
8.1 Principle
8.2 Apparatus
8.3 Preparation of test specimen
8.4 Procedure
8.4.1 General
8.4.2 Optical microscopic examination
8.4.3 Scanning electron microscopy
8.5 Measurement of the diameter
8.5.1 Filaments of circular cross-section
8.5.2 Filaments of non-circular cross-section
9 Method D: Determination of the diameter by laser diffractometry
9.1 Principle
9.2 Apparatus
9.3 Preparation of test specimen
9.4 Procedure
9.5 Expression of results
10 Method E: Determination of filament diameter by scanning electron microscopy
10.1 Principle
10.2 Apparatus
10.3 Procedure
11 Precision
12 Test report
Annex A (informative) Suggested method for the preparation of test specimens for method C
Previous versions
Keep me up-to-date
Register to receive notifications when updates are made to this standard.
Related Information
Similar Standards
-
BS 7658-2:1993
Carbon fibre., Method for determination of linear density
-
BS EN ISO 10548:2003
Carbon fibre. Determination of size content
-
BS EN ISO 10618:2004
Carbon fibre. Determination of tensile properties of resin-impregnated yarn
-
BS EN ISO 13002:1999
Carbon fibre. Designation system for filament yarns
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test specimens
5.1 General
5.2 Method A
5.3 Methods B and D
5.4 Method C
5.5 Method E
6 Method A: Determination of the diameter by calculation
7 Method B: Determination of filament diameter by optical microscopy
7.1 Principle
7.2 Apparatus
7.3 Calibration of the microscope
7.4 Preparation of the test specimen
7.5 Procedure
7.6 Expression of results
8 Method C: Determination of the diameter and cross-sectional area of transversely cut filaments by microscopy
8.1 Principle
8.2 Apparatus
8.3 Preparation of test specimen
8.4 Procedure
8.4.1 General
8.4.2 Optical microscopic examination
8.4.3 Scanning electron microscopy
8.5 Measurement of the diameter
8.5.1 Filaments of circular cross-section
8.5.2 Filaments of non-circular cross-section
9 Method D: Determination of the diameter by laser diffractometry
9.1 Principle
9.2 Apparatus
9.3 Preparation of test specimen
9.4 Procedure
9.5 Expression of results
10 Method E: Determination of filament diameter by scanning electron microscopy
10.1 Principle
10.2 Apparatus
10.3 Procedure
11 Precision
12 Test report
Annex A (informative) Suggested method for the preparation of test specimens for method C