ISO 340 Conveyor Belt Vertical Burning Test Chamber 1. Scope:
This tester is suitable for conveyor belts and steel cord conveyor
belts with textile bodies, and is also suitable for testing the
flammability and flame propagation characteristics of horizontally
oriented conveyor belt samples;
2. Principle:
For a given period of time, the ends of the horizontally oriented
conveyor belt specimens were exposed to flames, and the conveyor
belt response to ignition sources was evaluated on a small scale.
The duration of removal of the burner flame was measured, and after
the flame died, a stream of air passed through the sample to
measure the duration of afterglow.
3. According To The Standard:
This tester is produced according to the standards and requirements
of AS 1334.10 1994 "Determination of Flammability and Flame
Propagation Characteristics of Conveyor Belts" and ISO 340-2022
"Conveyor Belts - Laboratory Scale Flammability Characteristics -
Requirements and Test Methods".
4. Relevant Definitions:
This test uses the following definitions:
1. Flame duration: after 60s, after the burner under the sample is
removed, the sample continues to burn;
2. Afterglow: slow burning without flame;
3. Flame period: the total flame duration of a single group of
tests;
4. Afterglow period: the total afterglow time of a single group of
tests;
5. Acceptance test: a test in accordance with AS 1334.10 1994 to
prove that the sample complies with its technical requirements;
6. Type certification: in accordance with AS 1334.10 1994 in order
to comprehensively identify and evaluate product quality;
7. Vertical test: test according to ISO 340-2022. Parameters | Items | Specification | | Ignition time setting range | 0～999.9s | | Combustion timing range | 0～999.9s | | Bunsen burner | The inner diameter is 10.5mm | | Bunsen burner rotation angle | 45°~90° | | Thermocouple | Type k armor | | Thermocouple display range | 0～1300℃ | | Test flame temperature | 1000±20℃ | | Flame ruler | 50～150/180mm | | Combustion chamber dimensions | 500mmx500mm×500mm | | Combustion gas | Propane gas, purity > 95% | | Volume (wxdxh) | 555x651x738mm | | Weight (approx.) | ≈40kg | | Power supply | Ac 220v±10%,50～60hz |
|
