1. Single Flame Source (Ignitability Apparatus)

As per TUeV Germany,

Test apparatus corresponds to standard EN ISO 11925-2. Test results of the building structure can be classified according to standard 13501-1. The dimensions of the test specimens shall be (250 ) mm long by (90 ) mm wide.  45 degree-tilted burner is advanced horizontally until the flame (length 20 mm) reaches the pre-set contact point with the test specimen. Tests may need to be conducted to either surface exposure or edge exposure, or both. The flame application time is 15 or 30 seconds as required by sponsor.

During the test following is recorded:
whether ignition occurs.
whether the flame tip reaches 150 mm above the flame application point, and the time at which this occurs.
whether ignition of the filter paper occurs.
observations of physical behavior of the test specimen.

2. UL 94 test

As per Underwriters Laboratories, US

UL 94 the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances includes small scale tests that evaluate the flammability of polymeric (plastic)  materials, used for parts in devices and appliances, in response to a small, open flame or  radiant heat source under controlled laboratory conditions. The results of most UL 94 flammability tests are not applicable to materials whose thickness exceeds 13.0 mm, or whose surface area exceeds 1sqm.

when the test flame is applied to the end of the sample. To achieve a V rating (e.g. V-2, V-1, or V-0) the test samples, placed vertically with the test flame impinging on the bottom of the sample, must extinguish within specified times, not burning to the top clamp or dripping molten material which ignites a cotton indicator.

3. Small-scale burning tests for liquid combustibles storage group determination

This test was specifically developed for liquid organic peroxides in accordance with German Accident Prevention
Regulations BGV B4.

In this test burning surface area is kept constant.The burning rate is determined by measuring the weight loss of the sample as a function of time • rate (kg/m 2 x min), temperature of the substance Tcontrol + 10 K ( ≤ 25 °C) . In order to simulate the burning of a stack of packages the burning surface area of the test sample is divided into smaller segments. The test is carried out in a Duran glass beaker or a similar beaker (height 54 mm, internal diameter about 87 to 91 mm, wall thickness 2,5 mm). The beaker is insulated and  inside the test beaker there are 14 glass rings of 20 mm outside diameter, 29 mm height and 2 mm wall thickness are arranged (“to simulate the packages”). An electrical weighing balance is used to measure the decrease of the sample mass during the burning test.

Fire Testing on Building/Plastic Materials

~striving for a safer tomorrow~
तकनीकी जोखिम अनुसंधान एवं विश्लेषण समूह (ट्राग)