The test method for the flammability of leather can be assessed using an instrument called a Cone Calorimeter. This test method is widely accepted and complies with international standards such as ISO 5660 and ASTM E1354.

The following is an overview of the steps involved in conducting a leather flammability test using the Cone Calorimeter in general environments:

1. Sample preparation: Cut leather samples of appropriate size and shape according to the requirements of the test standard. The recommended sample size is 100 mm x 100 mm.

2. Test setup: Place the leather sample on the Cone Calorimeter test bench to ensure good contact between the sample and the instrument.

3. Burn test: A gas flame source is ignited in the Cone Calorimeter and touched to the bottom of the leather sample.

4. Test data collection: monitor and record multiple parameters through Cone Calorimeter, such as heat release rate (Heat Release Rate), black smoke production rate (Smoke Production Rate), gas production rate (Gas Production Rate), total heat release ( Total Heat Release), etc.

5. Data analysis: Evaluate the combustion characteristics of the leather sample according to the test results, such as heat release rate curve, black smoke production and gas production, etc.

The Cone Calorimeter test provides a range of parameters for assessing the flammability of leather, which helps researchers and manufacturers understand the combustion behavior of materials and its application when designing and specifying products. Note that ensuring compliance with applicable testing standards and safe operating practices is key to obtaining accurate and reliable results.