EN 1246:1998

Adhesives - Determination of ash and sulphated ash

This European Standard specifies two conventional methods for the determination of ash and sulphated ash content of a synthetic or natural adhesive.

Klebstoffe - Bestimmung der Aschegehaltes und des Sulfat-Aschegehaltes

Diese Norm legt zwei übliche Verfahren zur Bestimmung des Asche- und des Sulfat-Asche-Anteils von synthetischen und natürlichen Klebstoffen fest.

Adhésifs - Détermination du taux de cendres total et du taux de cendres sulfatées

La présente norme européenne spécifie deux méthodes classiques pour déterminer le taux de cendres total et le taux de cendres sulfatées, d'un adhésif synthétique ou naturel.

Lepila – Določevanje pepela in sulfatnega pepela

General Information

• Status: Published
• Publication Date: 17-Feb-1998
• Withdrawal Date: 30-Aug-1998
• ICS: 83.180 - Adhesives
• Technical Committee: CEN/TC 193 - Adhesives
• Drafting Committee: CEN/TC 193/WG 1 - General terminology - General physical and chemical tests
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 22-Oct-2020
• Completion Date: 23-Sep-2025
• Ref Project: SIST EN 1246:1999 - Adhesives - Determination of ash and sulphated ash

Overview

EN 1246:1998 is a European standard developed by CEN that defines methods for determining the ash and sulphated ash content in adhesives. This standard applies to both synthetic and natural adhesives, providing a reliable and conventional approach to assess inorganic residues after the combustion of adhesive samples. The accurate measurement of ash content is essential for quality control, formulation verification, and ensuring compliance with product specifications.

Key Topics

• Ash Content Determination
  The standard outlines a conventional method for measuring the total ash content resulting from the combustion of adhesive materials. This helps identify the inorganic residue remaining after organic components have been burned off.

• Sulphated Ash Determination
  EN 1246:1998 specifies a method that includes treatment with sulfuric acid before ignition to determine the sulphated ash content, which is vital for understanding the sulphur-related inorganic compounds within adhesives.

• Scope of Adhesives
  The methods cover both natural adhesives, typically derived from biological sources, and synthetic adhesives, made from chemically formulated polymers.

• Standardized Procedures
  The document provides step-by-step guidance on sample preparation, ignition conditions, and calculation formulas ensuring repeatability and consistency across laboratories.

Applications

• Quality Control
  Manufacturers use EN 1246:1998 methods to verify ash content as a quality parameter in adhesive production, ensuring product consistency and performance.

• Formulation Analysis
  Determining ash and sulphated ash helps in the analysis of adhesive composition, especially to detect fillers or additives that impact end-use properties.

• Regulatory Compliance
  Adhering to EN 1246 ensures compliance with European standards for adhesive materials, which can be critical for market acceptance and legal requirements.

• Research and Development
  Adhesive formulators and R&D teams utilize these ash determination techniques to innovate and optimize adhesive formulations for improved performance.

Related Standards

• EN 1939 - Adhesives - Testing of mechanical properties
  Provides complementary methods for evaluating the physical and mechanical characteristics of adhesives.

• ISO 3451 - Plastics - Determination of Ash
  Though focused on plastics, these methods are related and sometimes referenced for similar ash content analysis in polymer-based adhesives.

• EN 13173 - Adhesives - Sampling for testing
  Describes proper sampling techniques that ensure representative adhesive specimens for testing including ash content.

By following EN 1246:1998, industry professionals can reliably determine the inorganic residue content in adhesives, contributing to product quality assurance and regulatory adherence. This standard plays a crucial role in the adhesive manufacturing and testing process, supporting high standards in adhesive performance and safety.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Klebstoffe - Bestimmung der Aschegehaltes und des Sulfat-AschegehaltesAdhésifs - Détermination du taux de cendres total et du taux de cendres sulfatéesAdhesives - Determination of ash and s
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