1.1 This standard covers the following tests applicable to the products indicated alongside:
a) Visual inspection — for all products;
b) Water absorption test — for building pipes, sheets and building boards;
c) Test for impermeability — for sheets;
d) Acid resistance test — for corrugated, semicorrugated and flat sheets; building pipes; and sewerage and drainage pipes;
e) Load bearing capacity test — for corrugated and semi-corrugated sheets, flat sheets and building boards;
f) Transverse crushing test — for pipes;
g) Hydraulic pressure test — for pipes; h) Hydraulic bursting test — for pipes;
j) Longitudinal bending test — for pipes;
k) Straightness test — for pipes;
m) Measurement of density — for flat sheets;
n) Frost cracking test — for sheets; and
p) Determination of colour and staining power of pigments to be used for colouring corrugated and semi-corrugated sheets.