BS 2782-1:Method 140C:1993

National foreword
Committees responsible
Method
1 Scope
2 Normative references
3 Definitions
4 Significance of test
5 Principle
6 Apparatus and materials
7 Specimens
8 Conditioning
9 Test procedures for bars
10 Test procedures for plates
11 Precision
12 Test report
Annexes
A (normative) Procedure for calibration of a 125 mm
     test flame
B (informative) Classification system for determining
     the combustibility of specimens using a 500 W
     ignition source
Tables
1 Gas sources
2 Precision data on the afterflame time after the
     fifth flame application
3 Precision data on the afterflame time or afterglow
     time after the fifth flame application
A.1 Gas sources
B.1 Criteria and categories for classifying burning
     behaviour
Figures
1 Test assembly for bars
2 Burner supply arrangement
3 Test assembly for plates
A.1 Thermal sensor
A.2 Arrangement to check the temperature of the flame
A.3 Burner supply arrangement
National annex
NA (informative) Details of laboratory burner
     (ignition source P/PF2)

Specifies a small scale laboratory screening procedure for comparing the relative burning behaviour of small specimens of plastics and also their resistance to burn through when exposed to an ignition source of medium energy level (500 W flame). Coverage includes definitions, specimens and precision. Also includes annexes, tables and diagrams.