As per discussion with Ms. Kannika and Miss Piyanee , they have concluded that the registration and submission for food supplement
follow from Sor.Bor.3 (Notification of Ministry of Public Health No. 293).
The Notification of Ministry of Public Health (No. 293) has been tested items only on file attachment.
Therefore, do not test for inorganic arsenic (Please find the translated of Sor.Bor.3 attachment).
In addition, I made yellow highlight in the connected part.