SIST EN 993-2:1998

Methods of test for dense shaped refractory products - Part 2: Determination of true density

This part of EN 993    specifies a method for measuring the true density of refractory products and materials

Prüfverfahren für dichte geformte feuerfeste Erzeugnisse - Teil 2: Bestimmung der Dichte

Dieser Teil von EN 993  legt ein Verfahren zur Messung der Dichte von feuerfesten Erzeugnissen und Werkstoffen fest.

Méthodes d'essai pour produits réfractaires façonnés denses - Partie 2: Détermination de la masse volumique absolue

La présente partie de l'EN 993 spécifie une méthode de détermination de la masse   volumique absolue des matières premières et des produits réfractaires.

Metode za preskušanje gostih oblikovanih ognjevzdržnih izdelkov - 2. del: Ugotavljanje gostote

General Information

• Status: Published
• Publication Date: 31-Mar-1998
• ICS: 81.080 - Refractories
• Technical Committee: IKER - Ceramics
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-1998
• Due Date: 01-Apr-1998
• Completion Date: 01-Apr-1998
• Directive: Harmonized Standard305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive:

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  Not Harmonized89/106/EEC - Construction products
• Mandate: M/103 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on thermal insulating products
• Ref Project: EN 993-2:1995 - Methods of test for dense shaped refractory products - Part 2: Determination of true density

Relations

• Referred By: SIST EN 993-1:2019 - Methods of test for dense shaped refractory products - Part 1: Determination of bulk density, apparent porosity and true porosity
• Effective Date: 28-Jan-2026
• Amended By: SIST EN 993-2:1998/A1:2004 - Methods of test for dense shaped refractory products - Part 2 : Determination of true density
• Effective Date: 22-Dec-2008

Overview

SIST EN 993-2:1998 specifies standardized test methods for determining the true density of dense shaped refractory products and materials. Developed by the European Committee for Standardization (CEN), this standard is essential for industries involved in the manufacturing, quality control, and certification of refractory materials. True density measurement is a critical parameter for assessing a refractory's structural integrity and operational suitability, directly impacting performance in high-temperature environments.

Key Topics

• True Density Definition
  The standard outlines the procedure for accurately measuring the true density of refractory products, which is defined as the mass of the material divided by its true volume, excluding pores or voids.

• Sample Preparation
  Guidance is provided on how to prepare dense shaped refractory samples to ensure reliable and repeatable results.

• Measurement Techniques
  SIST EN 993-2:1998 describes the recommended method for density determination, ensuring consistency and comparability across laboratories and industries.

• Importance of Density
  A refractory's true density is directly related to its level of purity and the extent of porosity, which significantly affect properties such as thermal conductivity, mechanical strength, and chemical resistance.

• Quality Assurance
  Following the standard enables manufacturers and users of refractory products to maintain high quality and performance standards, ensuring compliance with international requirements.

Applications

SIST EN 993-2:1998 is widely used in several fields involving refractory materials, including:

• Manufacturing and Production
  Ensuring that dense shaped refractories meet correct density specifications helps optimize their service life, strength, and resistance to heat and chemical attack.

• Research and Development
  Laboratories and researchers rely on precise density data to develop improved refractory formulations and evaluate new raw materials.

• Construction and Maintenance
  In industries like steel, glass, cement, and ceramics, accurate density measurements contribute to the selection and qualification of materials for furnaces, kilns, and other high-temperature installations.

• Quality Control and Certification
  Following SIST EN 993-2:1998 supports product certification, consistency, and traceability, making it a vital component of quality management systems for refractory producers and users.

Related Standards

For comprehensive refractory testing and quality assessment, SIST EN 993-2:1998 is often used alongside other standards, including:

• EN 993-1 – Sampling and sample preparation for shaped refractory products
• EN 993-3 – Determination of bulk density, apparent porosity, and true porosity of dense shaped refractory products
• EN 1094 – Thermal insulating refractory products
• ISO 1927 – Monolithic (unshaped) refractory products

Utilizing SIST EN 993-2:1998 in conjunction with related standards ensures robust characterization of refractory properties, fostering enhanced product reliability and international market acceptance.

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Keywords: SIST EN 993-2:1998, true density, refractory products, dense shaped refractories, CEN standard, methods of test, quality control, refractories testing, density measurement, industrial standards.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-1998
Metode za preskušanje gostih oblikovanih ognjevzdržnih izdelkov - 2. del:
Ugotavljanje gostote
Methods of test for dense shaped refractory products - Part 2: Determination of true
density
Prüfverfahren für dichte geformte feuerfeste Erzeugnisse - Teil 2: Bestimmung der
Dichte
Méthodes d'essai pour produits réfractaires façonnés denses - Partie 2: Détermination
de la masse volumique absolue
Ta slovenski standard je istoveten z: EN 993-2:1995
ICS:
81.080 Ognjevzdržni materiali Refractories
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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