Methods
Quality & Accreditation
CAS operates within a quality framework certified to ISO 9001:2015. For selected testing methods, CAS holds accreditation by DAkkS in accordance with DIN EN ISO/IEC 17025:2018 (Accreditation No. D PL-14511-02-01).
Spectroscopy
Mass Spectrometry
- GCMS, Pyrolysis-GCMS
- HPLC-HRMS, GC-HRMS
Infrared Spectroscopy UV/VIS Spectroscopy Fluorescence Spectroscopy NMR Spectroscopy
- Quantitative NMR (qNMR)
- NMR (1H-, 13C-, 14N-, Si-, P-, F-)
- 2D-NMR (DOSY, COSY, HSQC, HMBC, etc.)
Chromatography
- GC with different detection and sample preparation possibilities
- Headspace-GC
- Gas analysis (CO2, CO, H2, CH4 etc.)
- HPLC (UV, ELSD, CAD, RID, MSD etc.)
- Ion chromatography (IC)
- Gel permeation chromatography (GPC), organic/aqueous
- Absolute molecular weight determination (light scattering/viscometer)
- High temperature GPC (HT-GPC)
- 2D polymer analysis (Liquid adsorption chromatography, LAC)
Coupling techniques
- LC/MS, LC-HRMS, LC-QQQ-MS
- GC/MS
- Headspace-GCMS
- DC
Preparative Chromatography
- Thin layer chromatography (TLC)
- Column chromatography
Physical Properties
- Microscopy
- Elemental analysis via EDX
- Scanning electron microscope
- Light microscope
- Particle size distribution
- Raman microscope
- Particle Analysis
- Visual analysis
- Laser diffraction analysis
- Dynamic light scattering
- Rheology
- Viscosity measurements
- Intrinsic viscosity
- Flow curve, yield point, visco elastic behaviour, thixotropy
- Surface Activity
- Surface and interfacial tension
- Contact angle
- Thermal Methods/Safety Parameter
- Dynamic differential calorimetry (DSC)
- Thermal gravimetric analysis (TGA)
- Flash point
- Polymer mechanics
- Tensile and bending test
- Notched impact (Charpy)
- High pressure capillary rheometer
- Physical Measurements
- Sieve analysis
- Density
Wet Chemical Methods
- Potentiometric and visual titration methods
- Acid-base titrations
- Redox titrations
- Surfactant titrations
- Complexometric titrations
- Precipitation titrations
- Fluoride-sensitive electrode
- Water determination
- Karl-Fischer titration
- Coulometric titration w/o sample oven technique
- Dry residue determination
- Oven method*
- Halogen moisture analyser
- Rotary evaporator
- UV/VIS spectrophotometer
- Colorimeter
- Turbidimeter
Accredited Testing Methods
*Accredited testing method in accordance with DIN EN ISO/IEC 17025:2018 (DAkkS, D-PL-14511-02-01) – applied for the determination of water solubility of synthetic polymer particles (microplastics) to assess compliance with the EU microplastics restriction (Regulation (EU) 2023/2055)
Scope No. Parameter Matrix In-house Method 1.1 Total Carbon Content (TC) Polymers AA-1020-0201* 1.2 Dissolved Organic Carbon (DOC) Polymers AA-1020-0202* 1.3 Water Solubility Polymers AA-1020-0203*