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Certified reference materials

The products developed in the LRM are prepared according to the recommendations of the International standard ISO/IEC 17034 and ISO Guide 35. All measurements taken in the LRM also follow the guidelines of the standard for competence in testing, ISO / IEC 17025.

Chemical composition reference materials are certified by consensus of groups expert labs from industry, university, and R&D centers, employing different measurement methods, giving security and credibility to certified values.

The viscosity and specific gravity standards are developed by means of exhaustive measurements performed at IPT, with direct traceability to the Inmetro, through calibrations of the instruments. The laboratory is also implementing measurement methodologies using Master viscometers to qualify certified kinematic viscosity values.

Types of reference materials of chemical composition

Metals

  • Steels
  • Cast iron
  • Ferro-alloys
  • Copper alloys
  • Silicon metal

Minerals

  • Limestones
  • Clays
  • Feldspar
  • Phosphate rock

Ceramics

  • Refractories

Types of physical properties standards

  • Viscosity
  • Density of liquids