ISO 1888:2022
(Main)Textile glass - Staple fibres or filaments - Determination of average diameter
Textile glass - Staple fibres or filaments - Determination of average diameter
This document specifies three test methods used for determining the average diameter (i.e. the average value of actual diameters) of staple fibres or filaments in a textile glass product.
Verre textile — Fibres discontinues et filaments — Détermination du diamètre moyen
General Information
Relations
Overview
ISO 1888:2022 - Textile glass: Staple fibres or filaments - Determination of average diameter specifies three standardized test methods for determining the average diameter (arithmetic mean of actual diameters) of staple glass fibres or filaments used in textile glass products. The fourth edition (2022) updates procedures and adds Method C (calculation-based determination). The standard is intended for reproducible laboratory measurement and reporting of filament/fibre diameter for quality control, specification, and material characterization.
Key topics and technical requirements
- Three test methods
- Method A (Longitudinal profile): Measure fibre profiles in a liquid mount with a refractive index different from the glass. Use a microscope (≥×400, preferably ×1 000) with an eyepiece micrometer; take 25 random readings; resolution to 0.5 μm or better. Mounting fluids suggested include benzyl alcohol, methyl salicylate or glycerol/water mix.
- Method B (Transverse section): Impregnate yarn with fast-curing resin, cure, polish and cut transverse sections. Under microscope (same magnification/resolution guidance) measure diameters of 25 fibre cross-sections; for oblique cuts measure the smallest axis.
- Method C (Calculation): Compute average filament diameter from yarn linear density (ISO 1889), material density (ISO 12154), and the filament count supplied by the manufacturer. The standard provides the calculation formula and specimen/measurement prerequisites.
- Sample preparation: Guidance on desizing (burn-off in a muffle furnace at 625 °C ± 25 °C if needed) and specimen sizes (e.g., cut lengths ≤ 25 mm for Method A).
- Reporting and expression of results: Express diameters to the nearest 0.5 μm; include method used (A, B or C), identification details, desizing statement if applicable, magnification, average diameter (with standard deviation if appropriate), deviations or incidents, and test date.
Applications and users
- Who uses ISO 1888:2022:
- Glass-fibre manufacturers for product specification and process control
- Independent testing laboratories and QA/QC departments
- Composite and textile fabricators verifying reinforcement properties
- R&D teams characterizing fibre geometry for performance modeling
- Practical uses:
- Ensuring consistent filament diameter for mechanical performance and processing
- Validating supplier claims and part acceptance testing
- Providing traceable measurement data for material selection and design
Related standards
- ISO 472 - Plastics - Vocabulary (terminology)
- ISO 1889 - Reinforcement yarns - Determination of linear density (used for Method C)
- ISO 12154 - Determination of density by volumetric displacement - Skeleton density by gas pycnometry (used for Method C)
Keywords: ISO 1888:2022, textile glass, staple fibres, filaments, average diameter, filament diameter measurement, Method A, Method B, Method C, microscope measurement, linear density.
Frequently Asked Questions
ISO 1888:2022 is a standard published by the International Organization for Standardization (ISO). Its full title is "Textile glass - Staple fibres or filaments - Determination of average diameter". This standard covers: This document specifies three test methods used for determining the average diameter (i.e. the average value of actual diameters) of staple fibres or filaments in a textile glass product.
This document specifies three test methods used for determining the average diameter (i.e. the average value of actual diameters) of staple fibres or filaments in a textile glass product.
ISO 1888:2022 is classified under the following ICS (International Classification for Standards) categories: 59.100.10 - Textile glass materials. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 1888:2022 has the following relationships with other standards: It is inter standard links to ISO 1888:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase ISO 1888:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 1888
Fourth edition
2022-01
Textile glass — Staple fibres or
filaments — Determination of average
diameter
Verre textile — Fibres discontinues et filaments — Détermination du
diamètre moyen
Reference number
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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or ISO’s member body in the country of the requester.
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Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Method A: Longitudinal profile .1
4.1 Principle . 1
4.2 Apparatus . 1
4.3 Procedure . 2
5 Method B: Transverse section . 3
5.1 Principle . 3
5.2 Apparatus . 3
5.3 Procedure . 4
6 Method C: Determination of the diameter by calculation . 5
6.1 Principle . 5
6.2 Test specimen . 5
6.3 Procedure . 6
7 Expression of results . 6
8 Test report . 6
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13,
Composites and reinforcement fibres.
This fourth edition cancels and replaces the third edition (ISO 1888:2006), which has been technically
revised.
The main changes are as follows:
— “Method C” (determination of the diameter by calculation) has been added.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
INTERNATIONAL STANDARD ISO 1888:2022(E)
Textile glass — Staple fibres or filaments — Determination
of average diameter
1 Scope
This document specifies three test methods used for determining the average diameter (i.e. the average
value of actual diameters) of staple fibres or filaments in a textile glass product.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 472, Plastics — Vocabulary
ISO 1889, Reinforcement yarns — Determination of linear density
ISO 12154, Determination of density by volumetric displacement — Skeleton density by gas pycnometry
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 472 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Method A: Longitudinal profile
4.1 Principle
Fibres or filaments placed in a liquid medium having a refractive index differing from that of the textile
glass are viewed in profile under a microscope and the diameter measured.
4.2 Apparatus
4.2.1 Microscope, equipped with the following:
— An eye-piece with a built-in micrometer graticule, the eye-piece and objective together giving an
overall magnification of at least ×400 and preferably ×1 000. The resolution of the microscope shall
permit measurement to the nearest 0,5 µm or better.
— A system permitting lateral and rotational movement of the microscope stage.
— An illumination system.
This sys
...
ISO 1888:2022 serves as a significant benchmark within the textile glass industry by providing comprehensive guidelines for determining the average diameter of staple fibres or filaments. This standard outlines three distinct test methods that ensure accurate and reliable measurement of average diameters, addressing a fundamental aspect critical to quality control and product specifications in textile glass manufacturing. The strengths of ISO 1888:2022 lie in its systematic approach to measurement, enabling manufacturers to achieve consistency and precision in their processes. By specifying three tested methodologies, it accommodates a range of testing conditions and material types, enhancing flexibility while upholding rigorous quality standards. This adaptability is crucial for stakeholders involved in the textile glass sector who require robust testing protocols that can be tailored to their specific production needs. Moreover, the relevance of ISO 1888:2022 cannot be overstated in today’s competitive market, where high-performance materials are increasingly demanded. By establishing clear and standardized measuring techniques, the document contributes to the overall reliability and performance of textile glass products. This, in turn, fosters innovation and improvement in textile glass applications across various industries, from automotive to construction. Overall, ISO 1888:2022 effectively addresses the need for standardized testing in the textile glass sector, reinforcing its importance in ensuring product quality and performance consistency.
La norme ISO 1888:2022 est essentielle pour l'industrie du textile en verre, car elle définit des méthodes précises pour la détermination du diamètre moyen des fibres ou filaments textiles. Le champ d'application de cette norme se concentre sur trois méthodes d'essai, permettant d'obtenir une évaluation fiable des diamètres réels des fibres ou filaments. Parmi les points forts de la norme ISO 1888:2022 figurent sa capacité à standardiser le processus de mesure, ce qui est crucial pour garantir la qualité et la cohérence des produits en textile de verre. Les méthodes décrites dans ce document permettent une analyse méticuleuse, assurant que les fabricants peuvent adhérer à des critères de qualité rigoureux tout en répondant aux besoins des clients. La pertinence de cette norme est également mise en avant par son rôle dans l'amélioration des processus de production. En offrant un cadre normatif pour la mesure du diamètre moyen, elle facilite non seulement le contrôle de la qualité des raw materials, mais aussi l'innovation dans les applications textiles avancées. Cette standardisation des méthodes de test renforce la capacité des entreprises à se démarquer sur le marché global, en optimisant la performance de leurs produits en textile de verre. En résumé, la norme ISO 1888:2022 est un référentiel clé dans le secteur, répondant aux exigences spécifiques de l'industrie du textile de verre tout en promouvant la fiabilité et l'efficacité des processus de fabrication grâce à une évaluation rigoureuse du diamètre des fibres ou filaments.
ISO 1888:2022는 섬유유리 제품에서 스테이플 섬유 또는 필라멘트의 평균 직경을 측정하는 세 가지 시험 방법을 규정하고 있습니다. 이 표준의 주요 강점은 다양한 섬유 유형에 대한 정확한 측정 기준을 제공한다는 점으로, textile glass 산업에서의 일관된 품질 보증에 기여합니다. 또한, ISO 1888:2022는 직경 측정의 표준화된 접근 방식을 통해 품질 관리 및 재료 선택 과정에서 신뢰성을 증대시키며, 이는 제조업체와 연구자 모두에게 유용합니다. 이 표준은 섬유유리 제품의 특성을 이해하고, 성능을 최적화하기 위한 기초 데이터를 제공함으로써 섬유유리 산업의 발전에 중요한 역할을 합니다. 이 표준의 적용 범위는 혁신적인 섬유유리 제품 개발 및 품질 향상에 기여하여, 시장에서의 경쟁력을 증진시킬 수 있도록 돕습니다. ISO 1888:2022는 섬유유리 분야의 전문가들에게 필수적인 문서로 자리 잡고 있으며, 전 세계적으로 통일된 측정 기준을 통해 산업 전반의 발전에 이바지하고 있습니다.
Die ISO 1888:2022 ist ein bedeutendes Dokument, das spezifische Testmethoden zur Bestimmung des Durchschnittsdurchmessers von Spinnfasern oder Filamenten in einem Glastextilprodukt festlegt. Der Umfang dieses Standards umfasst drei umfassende Prüfverfahren, die eine präzise Messung und Bewertung der Durchmesser der Fasern ermöglichen. Diese Norm ist von entscheidender Bedeutung für Hersteller und Qualitätskontrolleure in der Textilglasindustrie, da die durchschnittliche Fasergröße direkten Einfluss auf die Eigenschaften und die Leistung des Endprodukts hat. Ein herausragender Aspekt der ISO 1888:2022 ist die Detailliertheit der beschriebenen Testmethoden. Die Norm bietet klare und präzise Anleitungen, die es Anwendern ermöglichen, konsistente und wiederholbare Ergebnisse zu erzielen. Diese Konsistenz ist entscheidend, um die Qualität und Zuverlässigkeit von Glastextilprodukten sicherzustellen und letztendlich den Anforderungen des Marktes gerecht zu werden. Die Relevanz der ISO 1888:2022 wird durch ihre Fähigkeit unterstrichen, den Fachleuten in der Textilindustrie ein standardisiertes Verfahren zur Verfügung zu stellen, das die Kommunikation und das Verständnis zwischen verschiedenen Akteuren in der Lieferkette verbessert. Durch die Einhaltung dieser Norm können Hersteller sicherstellen, dass ihre Produkte den internationalen Standards entsprechen, was ihre Wettbewerbsfähigkeit stärkt. Zusammenfassend lässt sich sagen, dass die ISO 1888:2022 nicht nur die technische Genauigkeit der Messungen unterstützt, sondern auch den gesamten Produktionsprozess von Glastextilprodukten optimiert. Ihre Stärken, wie die Klarheit der Testmethoden und die Förderung von Qualitätsstandards, machen sie zu einem unverzichtbaren Instrument für die Branche.
ISO 1888:2022は、テキスタイルグラスのスタプルファイバーまたはフィラメントの平均直径を測定するための三つの試験方法を定めています。この標準化文書は、テキスタイル産業における材料の特性評価に重要な役割を果たします。 この標準の強みは、異なるテスト方法を提供することで、製品の一貫性と品質を確保する点にあります。具体的には、実際の直径の平均値を算出することができるため、製品の物理的特性を正確に評価することが可能です。また、テキスタイルグラスの用途が多岐にわたる中で、ISO 1888:2022はその標準化を通じて、業界全体の信頼性を向上させます。 ISO 1888:2022の適用性は非常に広く、特に高性能な材料を使用するフィールドでの利用が求められます。テキスタイルグラスの研究開発や製品品質管理を行う企業にとって、この標準は不可欠な指針となります。この文書に基づく測定は、国際的に認められた方法論に従っているため、製品の国際市場への進出をサポートする要素ともなります。 全体として、ISO 1888:2022はテキスタイルグラス関連のスタプルファイバー及びフィラメントの平均直径の検査における信頼性と一貫性を保証するための強力なツールであり、その実用性と適用範囲の広がりにより、業界における重要性は高まる一方です。
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