This standard specifies the quality and hygiene requirements for commercially available ham. This standard is applicable to meat products made from fresh pork hind legs that have been dry-salted, washed, sun-dried, and fermented (or not washed, sun-dried, and fermented).
GB 2731-1988 history
2015GB 2730-2015 Food safety national standard cured bacon products
2005GB 2730-2005 Hygienic standard for cured meat products