EN 1946-2:1999
(Main)Thermal performance of building products and components - Specific criteria for the assessment of laboratories measuring heat transfer properties - Part 2: Measurements by guarded hot plate method
General Information
- Abstract
This part 2 of this standard provides specific technical criteria for the assessment of laboratories to undertake steady-state heat transfer property measurements by the guarded hot plate method according to prEN12667 and prEN12664. It complements the common criteria in part 1. Guidance is given on the organization and contents of the equipment manual, the calibration and maintenance files and the measurement procedure document.
- Status
- Published
- Publication Date
- 19-Jan-1999
- Technical Committee
- CEN/TC 89 - Thermal performance of buildings and building components
- Drafting Committee
- CEN/TC 89/WG 8 - Thermal test methods
- Current Stage
- 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
- Start Date
- 19-Oct-2020
- Completion Date
- 17-Sep-2026
- 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
Not Harmonized89/106/EEC - Construction products
Overview
EN 1946-2:1999 (CEN) defines specific technical criteria for the assessment of laboratories performing steady-state heat transfer property measurements of building products by the guarded hot plate method. This Part 2 standard complements the common assessment criteria in Part 1 and gives concrete guidance on how laboratories should organize documentation, calibrate equipment, maintain apparatus, and document measurement procedures when testing thermal performance and thermal insulation properties of building components.
Key Topics and Requirements
- Scope of measurement method: Focus on the guarded hot plate method for steady-state determination of heat transfer properties of building products and components.
- Laboratory assessment criteria: Specific technical requirements that laboratories must meet to ensure reliable, reproducible results when using the guarded hot plate technique.
- Documentation and manuals: Guidance on the content and organization of the equipment manual - including descriptions of guarded hot plate apparatus, accessories and operational limits.
- Calibration and maintenance: Requirements for calibration files and maintenance records to demonstrate traceability and ongoing performance of sensors, plates and control systems.
- Measurement procedures: Expectations for the measurement procedure document, detailing steady-state test setup, environmental control, data acquisition and uncertainty considerations.
- Complementary criteria: How Part 2 complements the common laboratory criteria in EN 1946‑1, addressing method-specific issues for the guarded hot plate.
Applications and Users
EN 1946-2:1999 is targeted at organizations and professionals involved in thermal testing and certification of building materials:
- Testing and calibration laboratories seeking assessment, accreditation, or to demonstrate competence in guarded hot plate measurements.
- Manufacturers of thermal and sound insulating materials and building components who require validated thermal conductivity or resistance data for product development and declarations.
- Certification bodies and notified bodies assessing laboratory capabilities and conformity of thermal performance data.
- Researchers and consultants working on thermal performance, building physics, and energy efficiency analyses.
Practical benefits include improved measurement reliability, transparent documentation for audits, and better comparability of thermal property data across labs.
Related Standards
- EN 1946-1 - Common criteria for assessment of laboratories measuring heat transfer properties (complements Part 2).
- prEN 12667 and prEN 12664 - Measurement methods referenced for guarded hot plate testing of thermal properties.
Keywords: EN 1946-2:1999, guarded hot plate method, thermal performance, heat transfer, laboratory assessment, thermal insulation, building products.
Relations
- Effective Date
- 25-Aug-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Get Certified
Connect with accredited certification bodies for this standard
DIBt (Deutsches Institut für Bautechnik)
German Institute for Building Technology.
DIN CERTCO
DIN Group product certification.
Aboma Certification B.V.
Specialized in construction, metal, and transport sectors.
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Frequently Asked Questions
EN 1946-2:1999 is a standard published by the European Committee for Standardization (CEN). Its full title is "Thermal performance of building products and components - Specific criteria for the assessment of laboratories measuring heat transfer properties - Part 2: Measurements by guarded hot plate method". This standard covers: This part 2 of this standard provides specific technical criteria for the assessment of laboratories to undertake steady-state heat transfer property measurements by the guarded hot plate method according to prEN12667 and prEN12664. It complements the common criteria in part 1. Guidance is given on the organization and contents of the equipment manual, the calibration and maintenance files and the measurement procedure document.
This part 2 of this standard provides specific technical criteria for the assessment of laboratories to undertake steady-state heat transfer property measurements by the guarded hot plate method according to prEN12667 and prEN12664. It complements the common criteria in part 1. Guidance is given on the organization and contents of the equipment manual, the calibration and maintenance files and the measurement procedure document.
EN 1946-2:1999 is classified under the following ICS (International Classification for Standards) categories: 91.100.01 - Construction materials in general; 91.120.10 - Thermal insulation of buildings. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1946-2:1999 has the following relationships with other standards: It is inter standard links to ISO 8302:1991, EN 13763-19:2003, EN 12664:2001, EN 1946-1:1999, EN 12667:2001, EN 12939:2000, EN 14529:2005, CEN/TS 15548-1:2014, EN 1946-5:2000, EN 16012:2012+A1:2015, CEN/TS 15548-1:2011, EN ISO 22097:2023, EN 16012:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1946-2:1999 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
EN 1946-2:1999 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.Wärmetechnisches Verhalten von Bauprodukten und Bauteilen -Technische Kriterien zur Begutachtung von Laboratorien bei der Messungen von Wärmeübertragungseigenschaften - Teil 2: Messung nach Verfahren mit dem PlattengerätPerformance thermique des produits et composants pour le bâtiment - Criteres particuliers pour l'évaluation des laboratoires mesurant les propriétés de transmission thermique - Partie 2: Mesurages selon la méthode de la plaque chaude gardéeThermal performance of building products and components - Specific criteria for the assessment of laboratories measuring heat transfer properties - Part 2: Measurements by guarded hot plate method91.120.10Toplotna izolacija stavbThermal insulation9
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