ISO 11567:2018
Carbon fibre — Determination of filament diameter and cross-sectional area
Carbon fibre — Determination of filament diameter and cross-sectional area
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 9 августа 2018 г.
- Издание:
- ISO IS 11567 edition 2 version 1
- ICS:
- 59.100.20
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.
Abstract
Overview
ISO 11567:2018 - "Carbon fibre - Determination of filament diameter and cross‑sectional area" specifies five accepted test methods for measuring the diameter and cross‑sectional area of single carbon fibre filaments. It covers both “true” diameters (circular cross‑section) and “apparent” diameters (non‑circular cross‑sections), and gives guidance on selecting an appropriate method when no product specification exists. The second edition (2018, corrected 2020) adds a scanning electron microscopy (SEM) method and clarifies specimen numbers.
Key topics and technical requirements
- Five measurement methods:
- Method A - Calculation from yarn linear density (ISO 1889), fibre density (ISO 10119) and filament count; yields an average filament diameter.
- Method B - Optical microscopy (side view) to measure apparent diameter; recommended magnifications ≥×100 (locating) and ≥×1 000 (measurement). Not recommended for diameters
Технические детали
- Технический комитет
- ISO/TC 61/SC 13 - Composites and reinforcement fibres
- SKU
- ISO 11567:2018
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