2.10.1 The type and model of the sewage treatment
plant and the name of the manufacturer should be noted by means of
a durable label firmly affixed directly to the unit.
2.10.2 Administrations should examine the manufacturer's
installation, operating and maintenance manuals for adequacy and completeness.
2.10.3 Qualifications of testing facilities should
be carefully examined by the Administration as a prerequisite to their
participation in the testing programme. Every attempt should be made
to assure uniformity among the various facilities.