ISO/TS 19850:2022 PDF

Name: ISO/TS 19850:2022 — Fire tests — Use of LED (light-emitting diode) as an alternative to white light for measuring smoke parameters
SKU: ISO/TS 19850:2022
Price: 25 EUR
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Fire tests — Use of LED (light-emitting diode) as an alternative to white light for measuring smoke parameters

Название (английский):

ISO/TS 19850:2022

Fire tests — Use of LED (light-emitting diode) as an alternative to white light for measuring smoke parameters

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 19
Дата публикации:: 11 мая 2022 г.
Издание:: ISO TS 19850 edition 1 version 1
ICS:: 13.220.40

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Описание (английский):

This document specifies methodologies for comparing the smoke density and the smoke production rate during fire tests measured by LED (light-emitting diode) with those measured by white light. These methodologies are intended for the identification of suitable LEDs which can be used as alternatives to white light sources.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO/TS 19850:2022 provides methodologies to validate the use of LED (light-emitting diode) light sources as alternatives to traditional white light (gas-filled tungsten incandescent lamps) for measuring smoke parameters in fire tests. The technical specification focuses on comparing measurements of smoke density, optical density, transmittance, and smoke production rate obtained with LEDs against those obtained with conventional white light systems. Its purpose is to identify suitable LED sources that produce equivalent measurement results for established fire-test apparatus.

Key topics and requirements

Purpose and scope: Defines the approach to compare LED-based measurements with white-light baselines used in smoke extinction methods.

Measurement principles: Covers definitions (opacity, optical density, transmittance, smoke production rate) and the general measurement principle used in existing standards.

Spectral comparison: Procedures for comparing the spectral distributions of candidate LEDs with original white light sources to assess suitability.

Apparatus-specific methods: Guidance for adapting and comparing LEDs in apparatus specified in standards such as ISO 9705-1, ISO 24473, ISO 9239-1, EN 13823 and IEC 61034-1. Two comparison approaches (Method A - preferred - and Method B) are described.

Alternative experimental setup: A dedicated test arrangement (smoke generator, ducts, light source system) for controlled comparison when in-situ replacement is impractical.

Calibration and measurement fidelity: References to the light-receiving system (achromatic lenses, silicon photo-diodes with spectral filters) and calibration practices (neutral density filter checks, measurement accuracy requirements).

Data comparison and analysis: Procedures for comparing transmission and derived smoke parameters between LED and white-light systems.

Applications and users

ISO/TS 19850:2022 is intended for:

Fire test laboratories transitioning to LED light sources for smoke measurement.

Manufacturers of smoke-measurement instruments and LED light sources seeking compliance guidance.

Standards committees and test-house engineers updating test rigs in standards such as ISO 9239-1 or IEC 61034-1.

Building safety engineers and product certification bodies who rely on consistent smoke measurement data for materials and product testing.

Practical benefits include future-proofing test apparatus as incandescent white lamps are phased out and ensuring continuity and comparability of smoke measurement data when using LEDs.

Related standards

ISO 9239-1, ISO 9705-1, ISO 24473 (fire test methods using light extinction)

IEC 61034-1 (smoke density test apparatus)

EN 13823, EN 50399 (building product reaction-to-fire tests and calibration)

ISO 3182 (light-receiving system specifications)

Keywords: ISO/TS 19850:2022, LED smoke measurement, smoke density, smoke production rate, white light replacement, fire tests, optical density, transmittance.

ISO/TS 19850:2022 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

SIST ISO 9705-1:2018

Reaction to fire tests -- Room corner test for wall and ceiling lining products -- Part 1: Test method for a…

ISO 24473:2008

Fire tests — Open calorimetry — Measurement of the rate of production of heat and combustion products for fir…

SIST EN ISO 9239-1:2025

Reaction to fire tests for floorings - Part 1: Determination of the burning behaviour using a radiant heat so…

ISO 3182:2022

Light measuring system for smoke emission testing