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Information × Registration Number 0306U001424, 0105U003088 , R & D reports Title Development and certification of techniques of fulfilment of measurements of mass lobes of a silicon oxide (IV), oxide of zirconium (IV), natron and oxide of potassium in chromcontaining refractories popup.stage_title Розробка і атестація методик виконання вимірювань масових часток оксиду кремнію (IV), оксиду цирконію (IV), оксиду натрію і оксиду калію в хромвміщуючих вогнетривах. Head Spirin U., Registration Date 23-03-2006 Organization The open joint stock company " The Ukrainian research institute of refractories named A.S.Berezhnoy" popup.description2 The subject of investigation - chemical composition of chromecontaining refractories. The purpose of the work - new methods creation of measurements realization of mass proportions of silicon oxide (IV), zirconium oxide (IV), potassium oxide and sodium oxide in chromecontaining refractories. While making the measurements, the following equipment was used: photoelectric laboratory colorimeter КФК-2, laboratory scales of general purpose of 2-nd accuracy class such as ВЛР-200, flame photometer ПАЖ-1. Methods of measurement - chelatometric, photometric and flame-spectrometric. 3 procedures of measurements realization of mass proportions of silicon oxide (IV) in the range from 0,1 up to 10,0 %, zirconium oxide (IV) in the range from 0,5 up to 15,0 %, potassium and sodium oxides in the range from 0,1 up to 0,5 % in chromecontaining refractories are developed and certificated. Procedures are intended for supervision ensuring of chemical composition inspection of trial lots output of chromecontaining refractories. Metrological certification of the developed procedures is carried out and certificates about attestation №№ 5, 6, 7 are received.5635 Product Description popup.authors popup.nrat_date 2020-04-02 Close