We occupy a wide spectrum of physical investigation methods divided into three groups. In the successive structure several methods and possibilities to each subitem are presented. However, they do not depict our full range in this field. Please contact us via the contact formula or call us if you want to find out, weather we can offer a helpful product.
Optic and spectroscopic measurement procedures
- ex. Small stones and crystalline inclusions, schlieren and knots (with the aid of XRF, XRD, REM-EDX and microscopy)
Stress test of glass bodies
Transmission in UV-VIS and IR spectrum (determination of OH-concentration of glasses)
FTIR spectroscopy (f. ex. analysis of synthetic material)
Thermal analysis
Expansion coefficient and transformation temperature
DIN ISO 7884-8 “Glass; Determination of dilatometric transformation temperature”
DIN ISO 7991 “Determination of mean linear thermal expansion”
Working-Point (rotary viscosimeter)
DIN ISO 7884-1 “Glass – Viscosity and viscometric fixed points –
Part 1: Principles for determining viscosity and viscometric fixed points”
DIN ISO 7884-2 “Glass – Viscosity and viscometric fixed points –
Part 2: Determination of viscosity by means of rotation viscometers”
DSC (Differential Scanning Calorimetry) – Thermal analysis
DIN EN ISO 11 357-1 “Plastics – Differential scanning calorimetry (DSC) – Part 1: General principles”
DTA (Differential-Thermo-Analysis) – Thermal analysis
DIN 51004 “Thermal analysis (TA); Determination of melting temperatures of crystalline materials by differential thermal analysis (DTA)”
DIN 51005 „Thermal analysis (TA) – Terms”
DIN 51006 “Thermal analysis (TA) – Thermogravimetry (TG) – Principles
DIN 51007 “Thermal analysis (TA) – Differential Thermal analysis (DTA) – Principles”
Littleton-Punkt (Softening Point)
DIN ISO 7884-6 “Glass; Determination of Softening Point”
Annealing Point and Strain Point (Beam bending)
DIN ISO 7884-1 “Glass – Viscosity and viscometric fixed points –
Part 1: Principles for determining viscosity and viscometric fixed points”
DIN ISO 7884-4 “Glass – Viscosity and viscometric fixed points –
Part 4: Determination of viscosity by beam bending”
DIN ISO 7884-7 “Glass – Viscosity and viscometric fixed points –
Part 7: Determination of annealing and strain point by beam bending”
Loss on ignition
DIN 51081 “Testing of oxidic raw materials and materials – Determination of change in mass on ignition”
Investigation of crystallization, liquidus temperature
ASTM C 829 “Standard Practices for Measurement of Liquidus Temperature of Glass by the Gradient Furnace Method”
Remark: see also viscometric fixed points respectively viscosity-temperature-curve
Other physical investigations
Ability of wetting/measurement of contact angle
Determination of refraction index of compact samples and granulates
Density (buoyancy method, floating equilibrium method, pycnometer method)
ISO 5018 „Fireproof ceramic materials; Determination of density“
Sieving analysis
DIN 66165-1 “Particle size analysis – Sieving analysis – Part 1: Fundamentals”
DIN 66165-2 “Particle size analysis – Sieving analysis – Part 2: Procedure”