EN ISO 23900-6:2018 PDF

Name: EN ISO 23900-6:2018 — Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 6: Determination by film test (ISO 23900-6:2015)
SKU: EN ISO 23900-6:2018
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Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 6: Determination by film test (ISO 23900-6:2015)

Название (английский):

EN ISO 23900-6:2018

Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 6: Determination by film test (ISO 23900-6:2015)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 17
Дата публикации:: 19 сентября 2018 г.
Издание:: CEN EN 23900 edition 2 version 1
ICS:: 87.060.10

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Описание (английский):

ISO 23900-6:2015 specifies a method assessing the degree of dispersion of colorants and/or extenders in a thermoplastic polymer. The method is suitable for testing colorants and/or extenders in the form of concentrates or compounds in all polymers used for extrusion processes.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 23900-6:2018 (ISO 23900-6:2015) defines a standardized film test method to assess the degree of dispersion (dispersibility) of pigments and extenders in thermoplastic polymers. The method is applicable to colourant/extender concentrates and compounds processed by extrusion (blown or cast film). Detection of specks (agglomerates, aggregates, primary particles) is performed by transmission illumination and camera inspection, with software evaluation of contrast/brightness variations.

Note: the standard does not cover unrelated defects such as gels, black specks or holes. Test results are valid only for the specific equipment, test polymer and conditions used.

Key topics and technical requirements

Scope and applicability: Designed for concentrates and compounds in all polymers used for extrusion processes.

Terms and definitions: Clear definitions for speck, primary particle, aggregate, agglomerate, speck size class, speck area ratio, resolution, grey level, etc.

Principle of the method: Produce a polymer film from the test mixture, illuminate in transmission, capture images and analyse particle-related contrast differences using image analysis software.

Test materials: Requirements for basic test polymer, concentrate/compound and test mixture preparation (pre‑conditioning and controlled processing).

Apparatus and setup: Extruder with blown or cast film unit, downstream handling, transmission light source, camera inspection system and calibrated reference films.

Evaluation metrics: Detection and classification by size ranges and resolution, reporting of speck area ratio (total speck area / inspected film area) and other image-derived parameters.

Calibration and reproducibility: Use of calibration film to check parameter settings; results are comparable only when preparation, equipment and detection system are consistent.

Applications and practical value

Quality control of pigment and extender dispersion in plastic film production.

Comparative testing of concentrates or compounds for R&D, supplier evaluation and production troubleshooting.

Supporting supplier specifications, incoming material inspection and product acceptance criteria.

Useful for optimizing milling, compounding and extrusion conditions to reduce visible specks and improve aesthetic/performance properties.

Related standards

ISO 23900 series (Parts 1–5) - methods for dispersion assessment in plastics (two-roll milling, filter pressure value, etc.).

ISO/TS 27687 (nanotechnologies terminology) and ISO 4618 (colourant definitions) are referenced for terms.

Keywords: EN ISO 23900-6:2018, ISO 23900-6, pigments and extenders, dispersibility, dispersion, film test, plastics, thermoplastic polymer, extrusion, speck area ratio, camera inspection, transmission illumination.

EN ISO 23900-6:2018 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and practical value

Who should use this standard

Related standards

Технические детали

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