Materials for interconnection structures - Part 8: Sectional specification set for non-conductive films and coatings - Section 7: Marking legend inks

Details requirements for the qualification of marking inks used for legends and other identifications used on printed boards. Information in this specification will also provide guidance regarding the suitability of printed boards which feature marking inks.

Materialien für Verbindungsstrukturen - Teil 8: Rahmenspezifikationen für nichtleitende Folien und Beschichtungen - Hauptabschnitt 7: Beschriftungslacke

Matériaux pour les structures d'interconnexion - Partie 8: Collection des spécifications intermédiaires pour films non conducteurs et revêtements - Section 7: Encres de marquage

Détaille les exigences pour l'homologation des encres de marquage destinées au marquage et autres identifications utilisées sur les circuits imprimés. Les renseignements de cette présente spécification pourront aussi servir de guide relatif à l'aptitude des cartes imprimées qui caractérisent les encres de marquage.

Materials for interconnection structures - Part 8: Sectional specification set for non-conductive films and coatings - Section 7: Marking legend inks (IEC 1249-8-7:1996)

General Information

Status
Published
Publication Date
08-Aug-1996
Withdrawal Date
31-Mar-1997
Drafting Committee
IEC/TC 91 - IEC_TC_91
Parallel Committee
IEC/TC 91 - IEC_TC_91
Current Stage
6060 - Document made available - Publishing
Start Date
09-Aug-1996
Completion Date
09-Aug-1996

Relations

Effective Date
03-Feb-2026
Effective Date
03-Feb-2026
Effective Date
03-Feb-2026
Effective Date
09-Feb-2026
Effective Date
09-Feb-2026
Effective Date
03-Feb-2026

Overview

EN 61249-8-7:1996 (CLC) is the European sectional specification that defines requirements for the qualification of marking legend inks used on printed circuit boards (PCBs). It covers non-conductive films and coatings specifically for marking/legend inks and provides guidance on assessing the suitability of printed boards that include such inks. The document is aligned with the IEC variant referenced in the source (IEC 1249-8-7:1996).

Key Topics

The standard addresses the practical and performance aspects necessary to ensure reliable PCB markings. Major technical topics and requirements include:

  • Scope and definitions for marking/legend inks and related terms used on printed boards.
  • Qualification criteria for inks used for component identifiers, logos, polarity marks and other board legends.
  • Performance characteristics the inks must meet, such as adhesion, durability, and legibility under normal handling and assembly.
  • Environmental and ageing considerations that affect mark permanence and readability over the product lifetime.
  • Process compatibility with PCB manufacturing and assembly (soldering, cleaning, conformal coating compatibility).
  • Inspection and acceptance guidance to evaluate printed boards that feature marking inks.
  • Documentation and labelling expectations for ink materials and qualification evidence.

Note: The standard provides requirements and guidance rather than prescriptive numeric process parameters; consult the full text for specific test and acceptance clauses.

Applications

EN 61249-8-7:1996 is directly useful for:

  • PCB manufacturers selecting or qualifying marking/legend inks for new or existing board finishes.
  • Ink formulators and suppliers who need to validate product performance for PCB applications.
  • Quality engineers and test laboratories that perform qualification, conformity checks, and failure analysis of board markings.
  • Contract assemblers and OEMs ensuring that markings remain legible and non-detrimental through soldering and assembly.
  • Procurement teams specifying compliant marking inks in material purchase specifications.

Benefits include improved traceability, reduced assembly errors, and assurance that markings will withstand manufacturing and in-service conditions.

Related Standards

  • The EN classification is part of the wider Materials for interconnection structures series and is aligned with the referenced IEC sectional document (IEC 1249-8-7:1996).
  • Relevant to broader PCB material and process standards concerning solderability, conformal coatings, and printed wiring board quality (consult full standards list for exact cross-references).

Keywords: marking legend inks, PCB marking inks, EN 61249-8-7, qualification of inks, printed boards, non-conductive films, legend durability, PCB ink standards.

Frequently Asked Questions

EN 61249-8-7:1996 is a standard published by CLC. Its full title is "Materials for interconnection structures - Part 8: Sectional specification set for non-conductive films and coatings - Section 7: Marking legend inks". This standard covers: Details requirements for the qualification of marking inks used for legends and other identifications used on printed boards. Information in this specification will also provide guidance regarding the suitability of printed boards which feature marking inks.

Details requirements for the qualification of marking inks used for legends and other identifications used on printed boards. Information in this specification will also provide guidance regarding the suitability of printed boards which feature marking inks.

EN 61249-8-7:1996 is classified under the following ICS (International Classification for Standards) categories: 31.180 - Printed circuits and boards. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 61249-8-7:1996 has the following relationships with other standards: It is inter standard links to HD 323.2.3 S2:1987, HD 323.2.20 S3:1988, EN 60068-2-38:1999, EN 115-1:2008+A1:2010, EN 115-1:2017, EN 61192-1:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 61249-8-7:1996 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Materials for interconnection structures - Part 8: Sectional specification set for non-conductive films and coatings - Section 7: Marking legend inks (IEC 1249-8-7:1996)Materialien für Verbindungsstrukturen -- Teil 8: Rahmenspezifikationen für nichtleitende Folien und Beschichtungen -- Hauptabschnitt 7: BeschriftungslackeMatériaux pour les structures d'interconnexion -- Partie 8: Collection des spécifications intermédiaires pour films non conducteurs et revêtements -- Section 7 : Encres de marquageMaterials for interconnection structures -- Part 8: Sectional specification set for non-conductive films
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