Does the AP in the seal AP – Certified by the Arts and Crafts Materials Institute [ACMI] mean “Archival Product”?
As with ASTM D4236, this seal pertains to the product health safety issues. The seal is described on the ACMI website as “The new AP (Approved Product) Seal, with or without Performance Certification, identifies art materials that are safe and that are certified in a toxicological evaluation by a medical expert to contain no materials in sufficient quantities to be toxic or injurious to humans, including children, or to cause acute or chronic health problems.
