There are two standards related to barium fluoride window slice in this topic.
In the international standard classification, barium fluoride window slice involves nuclear energy engineering and inorganic chemistry.
In the Chinese standard classification, barium fluoride window slice relates to instruments, instrument materials and components, and inorganic salts.
State Administration of Market Supervision and Administration, China National Standardization Administration, Standards for Barium Fluoride Window Plate
GB/T 37,398-2019 Barium fluoride scintillation crystals
Industry standard – chemical industry, standard for barium fluoride window slice
HG/T 4499-2013 Barium fluoride for industrial use