Ignition Temperature Tester 

Product Introduce

The ISO 871 Ignition Temperature Tester is a professional equipment designed based on the ISO 871:2022 international standard, which is used to determine the ignition temperature of plastic materials. The instrument uses a hot air furnace to accurately control the air flow rate and temperature rise rate to determine the spontaneous combustion or ignition temperature of plastics in a high temperature environment. It is suitable for thermal stability and fire hazard assessment of thermoplastics and thermosetting plastics. The test objects are mainly solid plastic specimens, which are widely used in construction, automobiles, electronics and other industries to help select safe and reliable materials and ensure compliance with fire protection regulations. The equipment has standardized operation and reliable results, and is an important tool for testing the combustion performance of plastic materials.

Standard

ISO 871:2022

Plastics — Determination of ignition temperature using a hot-air furnace

Content: Specifies a laboratory method for determining the flash point temperature and auto-ignition temperature of plastics using a hot-air furnace. The test is

performed by heating a plastic sample and observing whether it ignites by an external flame (flash point) or ignites spontaneously (without an external flame) at different temperatures. The test results are used to compare the ignition characteristics of different materials, but do not directly assess the flammability or risk under actual fire conditions.

Applicability: Mainly for plastic materials, not for solid or high-boiling point chemicals, as these materials may thermally degrade at the test temperature.

ASTM D1929: Standard Test Method for Determining Ignition Temperature of Plastics
Equivalency: ASTM D1929 is similar to ISO 871:2022 in technical details (Note: ISO 871-2022 Option 1 is technically consistent with ASTM D1929).

Content: Determines the flash point and auto-ignition temperature of plastics in a hot-air furnace, using a method similar to ISO 871. The sample is placed in a vertical tube, heated by a hot air furnace, and the temperature at which it ignites or spontaneously combusts is observed.

Applicability: Also applicable to plastic materials, the test results are used to compare the ignition characteristics of materials and are not directly used for fire risk assessment.

Product content tested

According to ISO 871 and its related standards, the product content tested is mainly:

Material type:

Plastic (including thermoplastics and thermosetting plastics).

Specifically including:

common plastics such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS).
Not suitable for non-plastic materials such as high-boiling chemicals, wood, paper, cotton, etc., because these materials may thermally degrade at the test temperature, resulting in unreliable results.

Test objectives:

Flash point temperature (FIT): The lowest ambient air temperature at which the flammable gases released by the decomposition of plastics can be ignited by an external flame.

Self-ignition temperature (SIT): The lowest ambient air temperature at which the plastic can spontaneously ignite without an external flame.

Purpose of test results:

Comparison of ignition characteristics of different plastic materials.

As part of fire risk assessment, but not directly used to determine the flammability or safe temperature upper limit of the material under actual fire conditions.

Help manufacturers design safer plastic products that meet regulatory requirements (such as building codes or industrial standards).

Technical parameters:

1. The instrument surface is painted, beautiful and elegant;

2. The inner diameter of the furnace tube is 100mm±5mm, the length is 240mm±20mm, and the temperature resistance is not less than 750℃ ceramic tube;

3. The inner diameter of the inner tube is 75mm±2mm, the length is 240mm ±20mm, temperature resistance not less than 750℃;

4. Stainless steel container size: inner diameter 9mm, height 48mm;

5. Butane igniter inner diameter 1.8mm±0.3mm nozzle, flame height 10mm-20mm can be adjusted arbitrarily;

6. Copper ingot furnace can maintain constant temperature at any temperature between (150-450)℃;

7. Equipped with built-in fan to provide air source, and equipped with imported flow meter to accurately control gas flow;

8. The insulation layer is composed of thermal insulation mineral wool greater than 60mm thick, and is wrapped with stainless steel;

9. 3 imported thermocouples and temperature meters detect the temperature in the furnace and the sample temperature;

10. The sample container is made of stainless steel;

11. Timer accuracy 0.1s;

12. Automatic heating program;

13. Ambient temperature: room temperature ~ 40℃;

14. Ambient humidity: ≤75%;

15. Temperature control accuracy: ±2℃, It can be adjusted between 150℃~450℃;

16. Display accuracy: ±0.5℃;