Umwelt-Mikroskopie Evelyn Bieg

Gisela Bieg, Microscopic Investigations

Qualified petrographic analyses are offered:

  • seam coal
  • steam coal
  • coking coal
  • blends
  • barbecue charcoal and barbecue charcoal briquettes

Basis of the standardised microscopic analyses are polished particulate blocks from samples of coal or coal blends.
A polished particulate block of crushed coal is investigated in white light and blue light (fluorescence) using a polarizing reflected light microscope.


My company regulary participates in round robin tests and international accreditation programs for quality control.