EN 1094-2:1998
(Main)Insulating refractory products - Part 2: Classification of shaped products (ISO 2245:1990 modified)
Insulating refractory products - Part 2: Classification of shaped products (ISO 2245:1990 modified)
This European Standard specifies a classification of shaped insulating refractory products, based on the determintaion of permanent change in dimension on heating, with a secondary classification based on bulk density to cover lightweight products (Class L). Products composed of ceramic fibres are excluded.
Feuerfeste Erzeugnisse für Isolationszwecke - Teil 2: Klassifizierung geformter Erzeugnisse (ISO 2245:1990 modifiziert)
Diese Europäische Norm legt die Klassifizierung geformter feuerfester Erzeugnisse für Isolationßwecke auf der Grundlage der Bestimmung der bleibenden Längenänderung nach Temperatureinwirkung, einschließlich einer Sekundärklassifizierung auf der Grundlage der Rohdichte zur Berücksichtigung von Erzeugnissen für Isolationßwecke mit höherer Porosität (Klasse L) fest. Sie gilt nicht für Erzeugnisse aus keramischen Fasern.
Produits réfractaires isolants - Partie 2: Classification des produits façonnés (ISO 2245:1990 modifiée)
La présente norme européenne spécifie une classification des produits réfractaires isolants façonnés basée sur la détermination de la variation permanente de dimensions sous l'action de la chaleur, avec une classification secondaire basée sur la masse volumique apparente pour inclure les produits légers (classe L). Les produits constitués de fibres céramiques sont exclus de cette classification.
Toplotnoizolacijski ognjevzdržni izdelki - 2. del: Razvrstitev oblikovanih izdelkov (ISO 2245:1990, modificiran)
General Information
- Status
- Published
- Publication Date
- 20-Oct-1998
- Withdrawal Date
- 29-Apr-1999
- Technical Committee
- CEN/TC 187 - Refractory products and materials
- Drafting Committee
- CEN/TC 187 - Refractory products and materials
- Current Stage
- 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
- Start Date
- 02-Sep-2025
- Completion Date
- 02-Sep-2025
Relations
- Effective Date
- 28-Jan-2026
Overview
EN 1094-2:1998 (CEN) - Insulating refractory products - Part 2: Classification of shaped products - is a European standard derived from ISO 2245:1990 (modified). It defines a classification system for shaped insulating refractory products based primarily on the determination of permanent change in dimension on heating, with a secondary classification by bulk density to identify lightweight products (designated Class L). The standard explicitly excludes products composed of ceramic fibres.
Key topics and requirements
- Classification criteria: Primary classification is determined by measuring the permanent dimensional change after heating, providing a measure of thermal stability for shaped insulating refractories.
- Secondary classification (bulk density): Products with low bulk density are identified as lightweight (Class L), addressing thermal insulation performance and handling characteristics.
- Scope limitation: Ceramic fibre–based insulating products are excluded from this part of the standard.
- Standard lineage: EN 1094-2 implements a modified form of ISO 2245:1990, aligning European classification practice with international methodology.
- Intended outputs: A consistent set of product classes that manufacturers, testers, and specifiers can reference for selection, specification, and quality control of shaped insulating refractories.
Applications and who uses it
EN 1094-2 is practical for professionals involved with high-temperature insulation and refractory selection:
- Manufacturers of shaped insulating refractories (bricks, blocks, preformed shapes) for classifying product lines and communicating performance.
- Materials engineers and designers specifying insulating refractories for furnaces, kilns, incinerators and other high-temperature industrial equipment.
- Procurement and QA teams using standardized classes to set acceptance criteria and perform incoming inspections.
- Testing laboratories that determine permanent dimensional change and measure bulk density for compliance and certification.
- Standards committees and regulatory bodies referencing harmonized classification methods for safety and performance documentation.
Practical benefits include clearer product selection, improved interoperability between suppliers and end-users, consistent quality control, and better matching of insulating refractory performance to thermal and structural requirements.
Related standards
- EN 1094-2 is based on ISO 2245:1990 (modified).
- Users should consult complementary standards and test-method documents for detailed measurement procedures (e.g., standards on refractory test methods, bulk density measurement, and thermal stability testing) when implementing EN 1094-2 classifications.
Frequently Asked Questions
EN 1094-2:1998 is a standard published by the European Committee for Standardization (CEN). Its full title is "Insulating refractory products - Part 2: Classification of shaped products (ISO 2245:1990 modified)". This standard covers: This European Standard specifies a classification of shaped insulating refractory products, based on the determintaion of permanent change in dimension on heating, with a secondary classification based on bulk density to cover lightweight products (Class L). Products composed of ceramic fibres are excluded.
This European Standard specifies a classification of shaped insulating refractory products, based on the determintaion of permanent change in dimension on heating, with a secondary classification based on bulk density to cover lightweight products (Class L). Products composed of ceramic fibres are excluded.
EN 1094-2:1998 is classified under the following ICS (International Classification for Standards) categories: 81.080 - Refractories. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1094-2:1998 has the following relationships with other standards: It is inter standard links to EN ISO 2477:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1094-2:1998 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.Toplotnoizolacijski ognjevzdržni izdelki - 2. del: Razvrstitev oblikovanih izdelkov (ISO 2245:1990, modificiran)Feuerfeste Erzeugnisse für Isolationszwecke - Teil 2: Klassifizierung geformter Erzeugnisse (ISO 2245:1990 modifiziert)Produits réfractaires isolants - Partie 2: Classification des produits façonnés (ISO 2245:1990 modifiée)Insulating refra
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