Normas ISO

ISO 965-5:1998/Amd 1:2021

ISO general purpose metric screw threads -- Tolerances -- Part 4: Limits of sizes for hot-dip galvanized external screw threads to mate with internal screw threads tapped with tolerance position H or G after galvanizing

ISO general purpose metric screw threads -- Tolerances -- Part 3: Limit deviations for screw threads

ISO 965-2:1998/Amd 1:2021

Fine ceramics (advanced ceramics, advanced technical ceramics) -- Test method for air-purification performance of semiconducting photocatalytic materials -- Part 5: Removal of methyl mercaptan

Fine ceramics (advanced ceramics, advanced technical ceramics) -- Test method for air-purification performance of semiconducting photocatalytic materials -- Part 4: Removal of formaldehyde