British Standards Institution

Source:: CEN
Committee:: B/540 - Energy performance of materials components and buildings
Categories:: Information management | Standardization. General rules

Scope

This standard specifies the test method for the determination of the thermal conductivity of high temperature thermal insulation by means of a guarded hot plate. The thermal conductivity of high temperature thermal insulation is tested in the temperature range of 100 °C to 800 °C. This standard is used to measure the thermal conductivity of high-temperature thermal insulation consisting of homogeneous materials.

Purpose

The guarded hot plate method is the standard method for the absolute or primary measurement of thermal conductivity. The existing International Standards ISO 8302 specifies the method to measure the steady-state heat transfer through flat specimens and the calculation of its heat transfer properties. However, the criteria used in ISO 8302 were built mainly for room temperature or near-room temperature applications. These criteria include the limit of the thermal resistance of the specimen to which the existing International Standard is applicable, the recommended temperature difference between hot and cold plates in the steady-state measurement, and achievable precision by employing the specified test method in a given temperature range. The proposed International Standards will be designed for a temperature range between 100 °C and 800 °C. The proposed International Standard may be viewed as an extension of the Technical Specification XP CEN/TS 15548-1 (Thermal insulation products for building equipment and industrial installations Determination of thermal resistance by means of the guarded hot plate method – Part 1: Measurements at elevated temperatures from 100 °C to 850 °C) to more accessible International Standard. Note: in case the WI is based on documents from other organizations than ISO/IEC, please specify it here

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

30/08/2024

Proposal end date:

12/10/2024

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

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New work item ballot - EN ISO 9900 New work item ballot for re-activation of the abandoned work item EN ISO 9900.

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