Gives tolerances on capacities, mass and dimensions for blow moulded containers, made from polyolefins, up to 5 litres. Methods of measurement and test for important properties of the containers are specified. Recommendations of nett capacities for stock liquid containers is included. Covers scope, definitions, capacity, container mass, tolerances on dimensions, test requirements, sampling, method of measurement of brimful capacity, container mass, container height to neck face, container overall height, container diameter, neck height, neck and thread diameters, wall thickness, environmental stress and others are given.