intersciencefire

ASTM D7309

Microscale Combustion Calorimeter — MCC

Determines fundamental thermo-chemical data in seconds from 1–5 mg specimens and predicts fire properties of materials.

Standard Test Method for Determining Flammability Characteristics of Plastics and Other Solid Materials Using Microscale Combustion Calorimetry

Micro Calorimeter test equipment

Test overview

The Micro Calorimeter was developed in co-operation with the Federal Aviation Administration (FAA). It determines fundamental thermo-chemical data in seconds and predicts fire properties of materials.

The technique enables parameters such as Specific Heat Release Rate (W/g), Heat of Combustion (J/g) and Ignition Temperature (°C) to be quickly determined from very small (1–5 mg) specimens. It is a low cost and accurate technique; typical repeatability is ±5%.

Micro Calorimeter data has been shown to correlate with fire test data (Cone Calorimeter, OSU), flammability results (LOI, UL 94) and combustion tests (Bomb Calorimeter) and is therefore seen as a powerful, low-cost tool to assess and predict flammability properties.

Sample requirements

Sample dimensions, quantities, mounting, substrate and conditioning requirements for this test are confirmed with you before testing begins. Contact our technical team for the sample requirements for your product.

Equipment and outputs

Equipment used
Micro Calorimeter
Reported measurements
Specific heat release rate (W/g) · Heat of combustion (J/g) · Ignition temperature (°C)

Related tests

ISO 5660-1 · ASTM E1354

Cone Calorimeter

The most significant bench-scale instrument in fire testing — measures heat release, smoke production and mass loss under preset fire conditions.

Measures:
Heat release rate · Time to ignition · Mass loss rate · Smoke production rate
Markets:
Railway · Marine · Plastics
Related classification:
EN 45545-2
View test method

BS EN ISO 4589-2 · ASTM D2863

Oxygen Index — OI

Measures the minimum percentage of oxygen in a test atmosphere required to marginally support combustion.

Measures:
Oxygen index (%)
Markets:
Plastics · Railway
Related classification:
EN 45545-2
View test method

Not certain whether this is the correct test for your product?

Send us a datasheet or a short description of your product and we will tell you exactly which tests apply, before any testing is booked.