AS 2883-2000 pdf download.Analysis Of Metals – Procedures For The Setting Up, Calibration And Standardization Of Atomic Emission Spectrometers Using Arc/Spark Discharge. AS 2883 specifies practices for the setting up. calibration and standardization of equipment for the atomic emission spectrornetric analysis of metals using arc/spark discharge. This Standard details test procedures used to ensure optimum response from this equipment. NOTE: A glossary of terms used in this Standard is included for reference in Appendix A. 5.3 STANDARDIZATION 5.3.1 Principle Standardization is also known as ‘normalization’, drift correction’. or ‘recalibration’. The measured intensities obtained from spectrometer channels for a specific set of conditions vary with time. To compensate for this variation and to ensure that the intensities being referred to the stored calibration are valid for that calibration, it is necessary to adjust the currently measured intensities for each channel. The standardization is performed by referring intensities obtained currently on normalization standards to intensities obtained on the same standards at the time of initial calibration (Clause 5.2). The frequency of standardization, which will depend on the stability of the instrument and the required precision of the determination, should he determined by each individual laboratory. The need for standardization can be determined…