BS 3261-1:1973

Co-operating organizations
Foreword
Specification
1 Scope
2 Definition
3 Classification
4 Materials
5 Colour and surface characteristics
6 Dimensions
7 Requirements
8 Sampling and compliance
9 Marking
Appendices
A Conditioning of samples
B Method of measuring thickness
C Method of measuring width
D Method of measuring size of tiles
E Method of measuring squareness of tiles
F Method of test for residual indentation
G Method of test for flexibility
H Method of test for ply adhesion
J Method of test for dimensional stability
K Method of measuring curling
L Method of measuring moisture movement
M Method of measuring heat ageing and exudation
N Method of measuring resistance to various substances
P Method of test for elastic product
Table
1 Requirements for homogeneous unbacked flexible PVC
   flooring
Figures
1 Size of tiles
2 Ply adhesion test piece
3 Dimensional stability test piece
4 Suitable apparatus for curling test
5 Apparatus for moisture movement
6 Scratch tool

Deals with flooring supplied in continuous lengths or in tile form without backing. Specifies requirements for two types (Type A and Type B) with regard to dimensions and physical properties. Also gives methods of test.