Normative Instruction number 121, 09 March 2022; (2 page(s), in Portuguese)

Draft Circular regulating the development, appraisal and promulgation of technical regulations; (24 page(s), in Vietnamese)

DMS 91-4: 2024, Chemicals used for treatment of water intended for human consumption – Part 4: Sodium chloride ; (11 page(s), in English)