British Standard method of test for the ignitability of bedcovers and pillows by smouldering and flaming ignition sources.

BS 7175:1989 describes the method of test for bedcovers and pillows using smouldering and flaming ignition sources. There are three categories of test material distinguished within the method.

Eight possible ignition sources may be used. Source 0 is a smouldering cigarette, 1 to 3 are butane flames and 4 to 7 are wooden cribs. More details regarding these sources are given in the BS5852 (1979 & 1980). The combination of ignition sources used during testing varies according to the items end use and the particular specifications set by Fire Officers dealing with an individual installation. The positioning of the ignition sources and the compliance limits of burning/damage etc. sustained by the test specimen varies according to the ignition source used and the sample category (1 to 3 above) being considered.

The most commonly encountered situation is an individual bedcover being used in a hotel. Fire Officers would normally require testing using sources 0, 1 and 5. An illustration of source 5 testing is shown opposite with the ignition source placed in both the positions specified by the method. The sample sizes varies with ignition source (450mm x 1350mm for source 0 and 650mm x 650mm for sources 1 to 7)

Prior to testing fabric samples are maintained in an air conditioned environment (in which both temperature and relative humidity are controlled) for a specified time. The tests are also conducted within specified temperature and humidity ranges