Fertilizers. Determination of trace elements. Determination of chromium(VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)— 20 стр.
Characterisation of waste and soil. Determination of chromium (VI) in solid material by alkaline digestion and ion chromatography with spectrophotometric detection— 32 стр.
Accuracy (trueness and precision) of measurement methods and results. Basic methods for the determination of repeatability and reproducibility of a standard measurement method— 62 стр.
Fertilizers and liming materials. Determination of chromium(VI) by photometry (method A) and by ion chromatography with spectrophotometric detection (method B)— 24 стр.
