Hello,
I am trying to do FR test for FRP samples in lab scale. I dont have any equipment for test. For lab scale what is the procedure for FR test and which can give good results.
UL 94 and Conecalorimetry are the advanced tests for finding FR results. you can also calculate through TGA...Follow my recent published paper for more details, entitle "Studies on thermal degradation and flame retardant behavior of the sisal fiber reinforced unsaturated polyester toughened epoxy nanocomposites", Journal of applied polymer science, DOI: 10.1002/app.42068
If you don't have UL 94, Conecalorimetry and TGA equipment's with you then simply you can born your sample vertically on gas flame. See below for rating..
V-2 burning stops within 30 seconds on a vertical specimen; drips of flaming particles are allowed.
V-1: burning stops within 30 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
V-0: burning stops within 10 seconds on a vertical specimen; drips of particles allowed as long as they are not inflamed.
There is the ASTM E2058 "Standard Test Methods for Measurement of Material Flammability Using a Fire Propagation Apparatus (FPA)" This test allows you to measure both the critical heat flux (CHF, [kW/m2]) and the thermal response parameter (TRP, [kW∙s1/2/m2]). Since this test has been performed on many different materials, it would be easy to make comparisons. for instance, wood (Douglas fir) has a reported TRP of 138 kW∙s1/2/m2. If treated with a fire retardant, the same wood has a TRP of 251 kW∙s1/2/m2. More details can be found in Chapter 4, Section 3 of the SFPE handbook of fire protection engineering.
Please check the following article:
https://www.sciencedirect.com/science/article/pii/B9781845692629500121
- Badges
- Science topic
- Similar topics
- Biological Science
- Microbiology
- Virology
- Virus