This Recommendation specifies • legal metrology requirements for prepackaged products (also called prepackaged commodities or prepackaged goods) labeled in predetermined constant nominal quantities of mass, volume, linear measure, area, or count, and • sampling plans and procedures for use by legal metrology officials in verifying the quantity of product in prepackages. Note: The sampling plans are not recommended for use in the quantity control processes of the packer. The following informative Annexes are also included: • Annex A - an examination procedure outline where sampling is used; • Annex B - procedures for determining average tare mass; • Annex C - procedures for determining the drained quantity of products in liquid medium; • Annex D - procedures for determining the actual quantity of frozen products; • Annex E - requirements for prohibition of misleading prepackages; • Annex F - basis for statistical sampling model used; • Annex G - a schematic representation to explain the application of T1 and T2 errors; • Annex H - an alternative sampling plan using a stepwise approach; • Annex I - detailed sampling plans; and • Annex J - references to documents mentioned.