ACP Fireproof Sheets Quality Standard

A. Fire-resistant aluminum sheet detection signs and requirements (B1 grade refractory material)

(1) The average remaining length of each set of test pieces, according to the test, is 150mm (the remaining length of any of the test pieces. 0), and the average flue gas temperature peak of each test is 200 degrees C.

(2) The flame tip height index in the test is 150mm, which prevents the burning drops from igniting the filter paper phenomenon.

(3) According to the results of the test, the smoke density grade (SDR) is s.75.

B. Fire-resistant aluminum plastic plate detection indicators and requirements (A-grade non-combustible composite core material)

(1)The average remaining length of each set of test pieces is 350mm (the remaining length of any of the test pieces is 200mm), and the average flue gas temperature peak per test is 125 degrees C, the rear of the test piece without any combustion occurrence.

(2) According to the results of the test, smoke density rating (SDR) 15

(3) According to and test, the material heat value is 4.2MJ/kg, with a heat release per unit area of the test piece of s.16.8MJ/kg m2.

(4) According to the test, the total non-lethal concentration Lco of the material combustion flue gas is 25.0 mg/L, the infected period of the mice did not die, the infected within three days of the mouse did not die, and the weight regained.

Before fire-resistant B1 or A-grade detection and grading, specific flame-retardant polyethylene granules must be extruded into the plate on the production line and joined with the aluminum plate to form a fire-resistant aluminum sheet.

Because of their plastic core material, ordinary aluminum sheets require flammable polyethylene as the substrate. Because the aluminum plate heat transfer speed is very quick, it is used in vertical combustion furnaces for fire-grade detection. Polyethylene core material in high temperature and flame direct contact as a result of the high-temperature core material and aluminum plate delayer. While polyethylene is simple to burn drop and ignite a fire, it does not meet the B1 grade signs and is categorized as a B2 grade flammable material.

Due to its plastic core material using special heat-resistant polyethylene material, in the fire performance testing process in the vertical combustion furnace experiment), after the aluminum plate heat, still can not quickly fire, is very difficult to burn, also does not produce toxic corrosive gas, no drops, smoke is very little. The product combustion fumes Toxic total non-lethal concentration of Lco 25mg/L, infected mice do not die, infected mice do not die within three days, and weight recovery, to reach the quasi-safe level, the indicators can meet the national standard requirements, so it is classified as B1 grade refractory material or A-grade non-combustible (composite core) material.