Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 4: Determination by two-roll milling

This Part of EN 12877 describes a method for determining the colour stability of colouring materials under defined conditions in plastics by two-roll milling. The result of the determination is a relative value, not an absolute one. The method is mainly used for testing colouring materials in polyvinyl chloride.

Farbmittel in Kunststoffen - Bestimmung der Beständigkeit der Farbe gegen Hitze beim Verarbeiten von Farbmitteln in Kunststoffen - Teil 4: Bestimmung im Dauerwalztest

Dieser Teil von EN 12877 beschreibt ein Verfahren zur Bestimmung der Beständigkeit der Farbe von Farbmitteln in Kunststoffen durch Prüfung im Dauerwalztest unter definierten Bedingungen. Das Ergebnis der Bestimmung ist ein relativer und kein absoluter Wert. Das Verfahren wird haupstächlich zum Prüfen von Farbmitteln in Polyvinylchlorid angewendet.

Matières colorantes dans les plastiques - Détermination de la stabilité de la couleur à la chaleur au cours de la mise en oeuvre des matières colorantes dans les plastiques - Partie 4: Détermination par calandrage sur bicylindre

Cette partie de l'EN 12877 décrit une méthode servant à déterminer la stabilité de la couleur des matières colorantes dans des conditions définies, pour les plastiques mis en oeuvre par calandrage sur bicylindre. Le résultat obtenu est une valeur relative et non une valeur absolue. Cette méthode est principalement utilisée pour l'évaluation des matières colorantes dans le polychlorure de vinyle.

Sredstva za obarvanje v polimernih materialih - Določevanje barvne stabilnosti na vročino med predelovanjem sredstev za obarvanje v polimernih materialih - 4. del: Določevanje z valjanjem dveh valjčkov

General Information

Status
Published
Publication Date
19-Oct-1999
ICS
83.040.30 - Auxiliary materials and additives for plastics
Technical Committee
CEN/TC 298 - Pigments and extenders
Drafting Committee
CEN/TC 298/WG 1 - Colouring materials in plastics
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
21-Aug-2024
Completion Date
14-Apr-2025
Ref Project
SIST EN 12877-4:2001 - Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 4: Determination by two-roll milling

Relations

Parent
EN 12877-1:1999 - Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 1: General introduction
Effective Date
22-Dec-2008
Parent
EN 12877-2:1999 - Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 2: Determination by injection moulding
Effective Date
22-Dec-2008

Overview

EN 12877-4:1999 (CEN) specifies a laboratory method for assessing the colour stability of colouring materials in plastics by means of two-roll milling. The procedure exposes colouring materials under defined processing-like thermal and mechanical conditions and produces a relative value describing how the colour changes during heat treatment. This Part 4 procedure is primarily intended for testing colouring materials used in polyvinyl chloride (PVC) formulations.

Key topics and requirements

  • Scope and purpose: Determine colour stability to heat during processing of colouring materials in plastics using two-roll milling.
  • Test principle: Simulate processing heat/mechanical action via a two-roll mill; assess colour change after the defined treatment.
  • Result type: Provides a relative indication of colour stability (not an absolute metric).
  • Material focus: Mainly applied to colouring materials for PVC; relevant to pigments, dyes and masterbatches used in polymer processing.
  • Standard context: Part 4 of the EN 12877 series and published by CEN; falls under ICS 83.040.30 (auxiliary materials and additives for plastics).
  • Documentation and reproducibility: The method specifies defined conditions to enable comparable, repeatable test results across laboratories and suppliers.

(Note: EN 12877-4 defines the method and conditions; specific measurement techniques and acceptance criteria depend on user requirements or companion standards.)

Applications

  • Quality control for pigment and masterbatch manufacturers assessing heat-induced colour change during compounding and processing.
  • Product development and R&D to screen colouring materials for thermal stability before scale-up.
  • Incoming inspection by PVC compounders and converters to ensure colour performance under processing conditions.
  • Independent testing laboratories providing comparative data on colouring materials’ behaviour during heat and shear exposure.
  • Regulatory or customer specifications where relative colour stability data are required for material selection and formulation decisions.

Who should use this standard

  • Colourant manufacturers (pigments, dyes, masterbatches)
  • Polymer compounders and PVC processors
  • Quality assurance managers and product developers
  • Materials testing laboratories and conformity assessment bodies

Related standards

  • EN 12877-4 is part of the broader EN 12877 series covering colouring materials in plastics; users may reference other parts of the series or complementary colour measurement standards for full evaluation and reporting practices.

Keywords: EN 12877-4, two-roll milling, colour stability, colouring materials in plastics, PVC pigment testing, CEN standard, heat stability test, masterbatch quality control.

Frequently Asked Questions

EN 12877-4:1999 is a standard published by the European Committee for Standardization (CEN). Its full title is "Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 4: Determination by two-roll milling". This standard covers: This Part of EN 12877 describes a method for determining the colour stability of colouring materials under defined conditions in plastics by two-roll milling. The result of the determination is a relative value, not an absolute one. The method is mainly used for testing colouring materials in polyvinyl chloride.

This Part of EN 12877 describes a method for determining the colour stability of colouring materials under defined conditions in plastics by two-roll milling. The result of the determination is a relative value, not an absolute one. The method is mainly used for testing colouring materials in polyvinyl chloride.

EN 12877-4:1999 is classified under the following ICS (International Classification for Standards) categories: 83.040.30 - Auxiliary materials and additives for plastics. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 12877-4:1999 has the following relationships with other standards: It is excused to EN 12877-1:1999, EN 12877-2:1999. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

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Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Farbmittel in Kunststoffen - Bestimmung der Beständigkeit der Farbe gegen Hitze beim Verarbeiten von Farbmitteln in Kunststoffen - Teil 4: Bestimmung im DauerwalztestMatieres colorantes dans les plastiques - Détermination de la stabilité de la couleur a la chaleur au cours de la mise en oeuvre des matieres colorantes dans les plastiques - Partie 4: Détermination par calandrage sur bicylindreColouring mat
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