Research of metrological support in chemical analysis of organic substances

Abstract

The article describes the main provisions, as well as the Standards of the Republic of Kazakhstan in the field
of metrological support in the development of standard reference samples in the Republic of Kazakhstan. The overreaching
objective of the work is the development and metrological research of the mass fraction of water in organic liquids using the 1
class accuracy burette with a one-way valve for titration. The preparation of titrating substances is described in the form of a
solution of known concentration and devices for the potentiometric (volumetric) Karl Fischer’s titration method. The progress
of work on determining the mass fraction of water in carbon is described in detail. The results of the determination of water
in hydrocarbons are shown in tabular form. The determination of the stability of the test sample of the mass fraction of water
is described in an organic liquid. The proposals for studying is given the possibility of using the developed samples and their
certification as state standard samples