EN ISO 20706-1:2019

Name: EN ISO 20706-1:2019 — Textiles - Qualitative and quantitative analysis of some bast fibres (flax, hemp, ramie) and their blends - Part 1: Fibre identification using microscopy methods (ISO 20706-1:2019, Corrected version 2020-03)
SKU: EN ISO 20706-1:2019
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Textiles - Qualitative and quantitative analysis of some bast fibres (flax, hemp, ramie) and their blends - Part 1: Fibre identification using microscopy methods (ISO 20706-1:2019, Corrected version 2020-03)

Название (английский):

EN ISO 20706-1:2019

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 35
Дата публикации:: 18 декабря 2019 г.
Издание:: CEN EN 20706 edition 1 version 1
ICS:: 59.060.01

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Описание (английский):

This document specifies methods for the identification of some bast fibres (flax, hemp, ramie) using both light microscopy (LM) and scanning electron microscopy (SEM). This document is also applicable to blends of these bast fibres and products made from them.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 20706-1:2019 (Corrected version 2020-03) is the CEN-adopted international standard for the microscopic identification of bast fibres - specifically flax, hemp and ramie - and their blends. Published by ISO and endorsed by CEN, this document defines accepted light microscopy (LM) and scanning electron microscopy (SEM) methods for fibre identification and applies to raw fibres, blends and textile products. The standard supports accurate qualitative analysis and forms Part 1 of the ISO 20706 series.

Key Topics

Scope and purpose: Procedures for identifying flax, hemp and ramie using LM and SEM; applicability to blends and finished products.

Testing principles: Use of complementary microscopy techniques - LM for internal morphology and SEM for detailed surface features - to improve identification accuracy.

Apparatus and reagents: Requirements for microscopy equipment and laboratory-grade materials (referencing ISO 3696 for water quality).

Sampling and specimen preparation: Guidance on laboratory sampling, selection and preparation of test specimens to ensure representative results.

LM and SEM procedures: Defined workflows for longitudinal and cross-sectional observation, including normative tests (e.g., polarized light and twisting-direction tests) and when to combine LM and SEM for ambiguous samples.

Supporting materials: Extensive photomicrographs and rationale in annexes (flax, hemp, ramie) to aid analyst interpretation.

Reporting: Required information for test reports to ensure traceability and reproducibility.

Applications

EN ISO 20706-1 is directly useful for:

Textile testing laboratories performing fibre identification and blend verification.

Quality control teams in fibre and textile manufacturing (flax/linen, hemp, ramie products).

Regulatory bodies and customs enforcing accurate labelling and anti-counterfeiting measures.

Forensic and research labs analyzing fibre composition and provenance.

Supply chain auditors and certification bodies ensuring product claims (e.g., % linen/hemp) are supported by standardized analysis.

Benefits include improved consistency in fibre identification, better support for fair labelling, and a harmonized approach for combined LM/SEM analysis where morphological similarity makes distinction difficult.

Related Standards

ISO 20705:2019 - Quantitative microscopical analysis - general principles of testing (normative reference).

ISO 3696 - Water for analytical laboratory use (referenced for reagent quality).

Other parts of the ISO 20706 series address complementary quantitative methods; consult ISO for the full series list.

Keywords: EN ISO 20706-1, ISO 20706-1:2019, bast fibres, flax hemp ramie, fibre identification, light microscopy, scanning electron microscopy, textile standard, blends, microscopy methods.

EN ISO 20706-1:2019

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

ISO 20706-1:2019

Textiles — Qualitative and quantitative analysis of some bast fibres (flax, hemp, ramie) and their blends — P…

ISO 20705:2019

Textiles — Quantitative microscopical analysis — General principles of testing

BS EN ISO 20706-1:2019

Textiles. Qualitative and quantitative analysis of some bast fibres (flax, hemp, ramie) and their blends. Fib…

SIST EN ISO 3696:1998

Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)