5.1 A means should be provided to seal the sampling
equipment throughout the period of supply.
5.2 Attention should be given to:
.1 the form of set up of the sampler;
.2 the form of the primary sample container;
.3 the cleanliness and dryness of the sampler
and the primary sample container prior to use;
.4 the setting of the means used to control the
flow to the primary sample container; and
.5 the method to be used to secure the sample
from tampering or contamination during the bunker operation.
5.3 The primary sample receiving container should
be attached to the sampling equipment and sealed so as to prevent
tampering or contamination of the sample throughout the bunker delivery