• Hydrogen Technologies Standards form the basic framework for market ramp-up

    More information
  • Climate change Standards and specifications support climate targets

    More information
  • Smart Farming Standards and specifications are drivers for the digitalization of agriculture

    More information
Standards [CURRENT]

ABNT NBR 17086-5
Portland cement – Chemical analysis Part 5: Determination of the sulphur trioxide

Edition 2023-06-15
Original language Portuguese
Price from 18.50 €
Table of contents