ASTM E1354 PDF

Also included is a determination of the effective heat of combustion, mass loss rate, the time to sustained flaming, and smoke production. These properties are determined on small size specimens that are representative of those in the intended end use. Additional guidance for testing is given in X1. Scope 1. The effective heat of combustion is determined from a concomitant measurement of specimen mass loss rate, in combination with the heat release rate.

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More E Scope 1. The effective heat of combustion is determined from a concomitant measurement of specimen mass loss rate, in combination with the heat release rate. Smoke development is measured by obscuration of light by the combustion product stream. External ignition, when used, shall be by electric spark. The value of the initial test heat flux and the use of external ignition are to be as specified in the relevant material or performance standard see X1.

The normal specimen testing orientation is horizontal, independent of whether the end-use application involves a horizontal or a vertical orientation. The apparatus also contains provisions for vertical orientation testing; this is used for exploratory or diagnostic studies only.

Examples of material specimens include portions of an end-use product or the various components used in the end-use product. No other units of measurement are included in this standard. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

For specific hazard statements, see Section 7. Adequate safeguards for personnel and property shall be employed in conducting these tests.

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ASTM E1354 – Cone Calorimeter

More E Scope 1. The effective heat of combustion is determined from a concomitant measurement of specimen mass loss rate, in combination with the heat release rate. Smoke development is measured by obscuration of light by the combustion product stream. External ignition, when used, shall be by electric spark.

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ASTM E1354

The cone calorimeter became the premier dynamic research tool based on the principle of oxygen consumption calorimetry. Radiant heat is the major cause of fire spread and the cone measures intensity of the peak rate of heat release PRHR and the speed to reach PRHR; the critical factors in predicting the growth rate of fire. Various output data are collected including peak rate and average rate of heat release, total heat released, effective heat of combustion, specific extinction area, exhaust flow rate, mass loss rate and final sample mass, time to sustained ignition, O2, CO, CO2, and toxic gas concentrations, and smoke density as a function of time. Setup The test apparatus consists of the following components: a conical radiant electric heater; specimen holders; an exhaust gas system with oxygen monitoring and flow measuring instrumentation; an electric ignition spark plug; a data collection and analysis system; and a load cell for measuring specimen mass loss. A photo of the apparatus is shown below.

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