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Hydrogeology Laboratory

Asst. Prof. Dr. Şükran AÇIKEL
About the Laboratory
In the Hydrogeology Laboratory, experimental testing is carried out on hand specimens of lithological units collected from the field in order to determine their hydrogeological properties, applying standardized methods defined by the American Society for Testing and Materials (ASTM).
Analysis / Experimental Infrastructure

Equipment and apparatus available in the laboratory:

  1. Equipment for determining grain size distribution of soil materials.
  2. Beckman Air Pycnometer: Used to measure the volumes of powder, unconsolidated granular, porous, and irregularly shaped samples.
  3. Constant-head permeameter apparatus for determining hydraulic conductivity of unconsolidated samples.
  4. Falling-head permeameter apparatus for determining hydraulic conductivity of unconsolidated samples.
  5. Equipment for pycnometer specific gravity testing on unconsolidated samples.
  6. Ruska Gas Permeameter: Used for hydraulic conductivity testing on consolidated core samples.
  7. Equipment for determining moisture equivalent content in unconsolidated samples.
Analyses & Standard Testing Methods

Standard testing methods applied in the laboratory:

  1. Particle-size distribution determination of soil materials (ASTM D 421-85 (1998), ASTM D 422-63 (1998), ASTM D 2217-85 (1998), and ASTM D 1140-97)
  2. Volume measurement via air pycnometer
  3. Dry unit weight determination (ASTM D 1895)
  4. Hydraulic conductivity testing on unconsolidated samples via constant-head permeameter (ASTM D 2434-68 (1994))
  5. Hydraulic conductivity testing on unconsolidated samples via falling-head permeameter (ASTM D 5084-90 (1997))
  6. Specific gravity determination by pycnometer method (ASTM D854-98)
  7. Porosity determination (ASTM D 425-88 (1997))
  8. Hydraulic conductivity testing on consolidated core samples via Ruska gas permeameter (ASTM D 4525-90 (1995))
  9. Moisture equivalent content determination (ASTM D 425-88 (1994/2000))
Analysis Rates & Fees (Year 2026)
Test / Analysis Description 2026 Unit Rate (excl. VAT)
Grain size distribution determination of soil materials 2,222 TL / sample
Volume measurement via air pycnometer 1,285 TL / sample
Dry unit weight determination 1,560 TL / sample
Hydraulic conductivity via constant-head permeameter (unconsolidated) 3,510 TL / sample
Specific gravity determination by pycnometer method 1,930 TL / sample
Porosity determination 1,560 TL / sample
Hydraulic conductivity via Ruska gas permeameter (consolidated cores) 3,510 TL / sample
Specific Yield + Specific Retention + Porosity 3,510 TL / sample
Note: Unit rates are per sample and exclude VAT.
Downloadable Forms
Analysis Request Form Proforma Request Form
Contact Information
Laboratory Supervisor: Asst. Prof. Dr. Şükran AÇIKEL
Address: Hacettepe University, Dept. of Geological Engineering, Hydrogeology Laboratory, 06800 Beytepe / Ankara / TURKEY
Phone: +90 (312) 780 76 07  |  Fax: +90 (312) 299 21 36
E-Mail: jeo@hacettepe.edu.tr