Specifies requirements for fittings for threaded connections, used mainly for industrial purposes. Table 1 contains diagrams ot types of fittings and their symbols. Tabulates the fitting dimensions (tables 2 to 10) with nominal sizes from DN 6 up to and including DN 80 (thread designation 1/8 to 3).
Ferrochromium and ferrosilicochromium — Determination of chromium content — Potentiometric method
The method is applicable to all grades of these ferroalloys. Specifies principle, reagents, apparatus, sample, procedure, expression of results and test report.