Nickel and nickel alloys — Rules for material description based on chemical symbols
Applies to the description of refined nickel as well as of wrought and cast nickel and nickel alloys. The description for nickel alloys shall consist of the chemical symbols of the base element (Ni) and the alloying elements, followed preferably by whole numbers indicating their amount (the chemical symbols being listed in decreasing order according to the nominal alloy contents). Varieties of an…
Draughting media for technical drawings — Draughting film with polyester base — Part 1: Requirements...
Specifies definitions as well as requirements for the following properties of film to be used as a medium for drawn and written information which it is possible to duplicate, revise and store: thickness, dimensional stability, permanent dimensional change, stability of form, adhesion, marking from metal objects, fold marks, surface resistance, visual density, draughting quality. In addition,…
Specifies general requirements for audiometers and particular requirements for pure-tone audiometers designed for use in determining hearing threshold levels in comparison with the standard reference threshold level by means of psycho-acoustic test methods. The contents of the corrigendum of February 1993 have been included in this copy.
Manganese ores and concentrates — Determination of hygroscopic moisture content in analytical sample...
The method is based on drying of an air-dried test portion to constant mass in a laboratory oven at 105 °C to 110 °C, and measurement of the loss in mass. The determination is intended to be carried out simultaneously with that of other constituents of the same analytical sample, so that the contents of the other constituents can be calculated on the basis of the absolutely dry ore. Should be…
Implants for surgery — Metallic materials — Part 9: Wrought high nitrogen stainless steel
Specifies the characteristics (chemical composition, microstructure in fully annealed condition, inclusion content, corrosion resistance, mechanical properties) of, and corresponding test methods for, wrought stainless steel containing 0,25 % and 0,5 % nitrogen for use in the manufacture of surgical implants for which high levels of strength and corrosion resistance are required.
Nickel, ferronickel and nickel alloys — Determination of phosphorus content — Phosphovanadomolybdate...
Phosphorus content can be determined in the range of 0,000 5 % (m/m) to 0,05 % (m/m). As, Cr, Hf, Nb, Si, Ta, Ti, W interfere, but the interferences can be avoided. The principle is dissolution of a test portion in a mixture of nitric and hydrochloric acids, fuming with perchloric acid, removal of chromium, complexation of silicon, conversion of phosphorus to phosphovanadomolybdic acid,…
Nickel alloys — Flame atomic absorption spectrometric analysis — Part 7: Determination of aluminium ...
Silicon content can be determined in the range of 0,2 % (m/m) to 1 % (m/m). The principle is dissolution of a test portion in acid, filtration and aspiration of the test solution into a nitrous oxide-acetylene flame of an atomic absorption spectrometer, combustion of the filter, volatilization of silica, fusion of the residue, dissolution of the melt in dilute acid, aspiration of this second…
