ASTA Members can download an electronic version of the ASTA Cleanliness Specifications. In 1969, ASTA adopted its first Cleanliness Specifications for Unprocessed Spices, Seeds, and Herbs (Foreign and Domestically Produced). Subsequent revisions were approved by the membership in 1971, 1975, 1976, 1982, 1989, 1991, 1992, 1994, 1995, 1996, 1997, and 2007. Each of these revisions focused on providing for a credible set of Cleanliness Specifications or improving the Sampling and Analytical Procedures which are an integral part of the Specifications.

 The ASTA Cleanliness Specifications are widely recognized within the spice industry and members are encouraged to apply them in transactions between buyers and sellers of spices, including instances when an ASTA contract is utilized.