ČSN EN 15991   (726078) Žárovzdorné materiály a výrobky - Přímé stanovení hmotnostních podílů nečistot v práškovém a zrnitém karbidu křemičitém optickou emisní spektroskopií s indukčně vázaným plazmatem (ICP-OES) a s elektrotermickým odpařením (ETV)

Anotace textu normy ČSN EN 15991   (726078)

This document specifies a method for the determination of the mass fractions of the elements Al, Ca, Cr, Cu, Fe, Mg, Ni, Ti, V and Zr in powdered and granular silicon carbide.

Dependent on element, emission lines, plasma conditions and sample mass, this test method is applicable for mass fractions of the above trace contaminations from about 0,1 mg/kg to about 1 000 mg/kg, after evaluation also from 0,001 mg/kg to about 5 000 mg/kg.

After adequate verification, this document is also applicable to further metallic elements (excepting Rb and Cs) and some non-metallic contaminations (like P and S) and other allied non-metallic powdered or granular materials like carbides, nitrides, graphite, soot, coke, coal, and some other oxidic materials (see [1], [4], [5], [6], [7], [8], [9] and [10]).