Individual samples shall have not more than double the tolerances specified, except that at least one defective or offsize potato may be permitted in any sample: Provided, that en route or act destination one-tenth of the samples may contain three times the tolerances permitted for potatoes which are frozen or affected by soft rot or wet breakdown; and provided further, that the averages for the entire lot are within the tolerances specified for the grade.
01-001 C.M.R. ch. 253, § V