7.1 The retained sample container should be clean
and dry.
7.2 Immediately prior to filling the retained
sample container, the primary sample quantity should be thoroughly
agitated to ensure that it is homogeneous.
7.3 The retained sample should be of sufficient
quantity to perform the tests required but should not be less than
400 ml. The container should be filled to 90% ± 5% capacity
and sealed.