ISO/TS 9124:2025 PDF

Name: ISO/TS 9124:2025 — Paints and varnishes — Thermal performance of paint films — Determination of solar irradiation penetration ratio with heat flow meter
SKU: ISO/TS 9124:2025
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Paints and varnishes — Thermal performance of paint films — Determination of solar irradiation penetration ratio with heat flow meter

Название (английский):

ISO/TS 9124:2025

Paints and varnishes — Thermal performance of paint films — Determination of solar irradiation penetration ratio with heat flow meter

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 24
Дата публикации:: 1 декабря 2025 г.
Издание:: ISO TS 9124 edition 1 version 1
ICS:: 87.040

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Описание (английский):

This document specifies the heat flow measurement method of the solar irradiation penetration ratio of paint films used for roofs and outer walls of buildings, structures, equipment or facilities situated outdoors and exposed to solar irradiation.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO/TS 9124:2025 - Paints and varnishes - Thermal performance of paint films - Determination of solar irradiation penetration ratio with heat flow meter specifies a laboratory measurement method to quantify how much solar energy penetrates paint films used on roofs and exterior walls. The Technical Specification defines the heat flux method using a heat flow meter and solar simulator to derive the paint film solar irradiation penetration ratio (ηp), a direct thermal metric expressed in heat units (W, W/m²).

Key Topics and Requirements

Measurement principle: Use of a solar simulator to irradiate the paint film and a heat flow meter to measure heat transmitted through the specimen. The penetration ratio ηp is the fraction of incident solar energy that is absorbed and conducted to the interior surface.

Apparatus composition: Required components include a solar simulator, climatic chamber (external airflow path) and a measuring unit (heat flux meter, sensors, radiometer).

Sampling and specimen preparation: References ISO 1513, ISO 2808 and related conditioning standards for sample preparation and film thickness control.

Test conditions and settings: Procedures for setting the external surface heat transfer coefficient, adjusting solar irradiance, and controlling environmental conditions during measurement.

Verification and calibration: Use of primary standard plates and verification plates; verification methods and environmental checks are specified to ensure reproducibility.

Measurement and calculation: Parameters to be measured (temperatures, heat flux, irradiance) and the formulas to calculate heat flow rates, penetration ratio and related heat balances.

Precision and reporting: Guidance on precision, uncertainties and mandatory items for the test report.

Annexes: Normative and informative annexes cover external heat transfer coefficient settings (Annex A), theoretical heat-balance calculations (Annex B), correlation with solar reflectance (Annex C) and heat flux measurements without solar irradiation (Annex D).

Applications

Evaluate and compare thermal barrier performance of exterior coatings irrespective of underlying technology (e.g., reflective pigments, insulating additives).

Input for building energy models, roof and façade thermal performance assessments, and life‑cycle energy calculations.

Product development and R&D for cool roof coatings, heat‑shielding paints, and energy‑saving exterior finishes.

Performance verification for specifications, procurement, and certification of thermal paint properties.

Who Should Use This Standard

Paint and coating manufacturers conducting thermal performance testing and product R&D

Independent testing laboratories and certification bodies

Architects, façade engineers and building energy modelers specifying exterior coatings

Facility managers and sustainability teams assessing retrofit options for roofs and walls

ISO/TS 9124:2025 PDF

Abstract

Похожие стандарты

Overview

Key Topics and Requirements

Applications

Who Should Use This Standard

Related Standards

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