Normas ISO

Acoustics -- Reference zero for the calibration of audiometric equipment-- Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz

Dentistry -- Dental units-- Part 1: General requirements and test methods

Non-destructive testing -- Penetrant testing-- Part 2: Testing of penetrant materials

Welding consumables -- Wire electrodes, wires, rods and deposits for gas-shielded arc welding of creep-resisting steels -- Classification

Petroleum and natural gas industries -- Completion fluids and materials-- Part 5: Procedures for measuring the long-term conductivity of proppants

Plastics -- Methods for marine exposure