The DIN_EN_ISO standards also provide guidelines for the selection and calibration of reference materials, sample preparation and handling, and data analysis and reporting. These standards help ensure the accuracy, reproducibility, and comparability of measurements made in different laboratories and by different users around the world.

DIN_EN_ISO Standard Norms and Instruments for UV/Vis Spectroscopy
UV/Vis Spectrophotometric Method for Accurate Optical Measurements
DIN_EN_ISO refers to the harmonization of DIN standards with the International Organization for Standardization (ISO) standards.
The DIN_EN_ISO standards for UV/Vis spectroscopy provide globally recognized protocols for the use of spectrophotometers and accessories for quantitative and qualitative measurements.
These standards cover topics such as the measurement of photometric properties, wavelength accuracy, stray light, and absorbance accuracy.

DIN EN ISO 6878:2004. Determination of Phosphorus Content
This standard specifies the determination of phosphorus using ammonium molybdate spectrometrically.
DIN EN ISO 7887:2012. Color of the Water
This standard specifies the method for the determination of the color of water when examining water quality.





