TIS 3438-2565 (2022) specifies type, model, size and capacity, material, chemical migration, specifications, packing, marking and labeling, sampling, hygiene requirements and test method for paper, hard paper, and paper containers made of pure fiber or mixing of pure fiber with non-coloring synthetic fiber, intended to use in contact with food for filtering hot liquid, heating, or cooking under 220 ℃ where there is a possibility of chemical migration into food. 

This standard was issued on 9 September 2022 by the Ministry of Industry. It took effect on December 1, 2022, the day it was officially released in the Royal Gazette.