Rechercher

Covers a method, the principle of which is based on the extraction from a test portion of compounds soluble in acetic acid solution and weighing of the residue after heating at 600 °C, removal from the residue, of silica by evaporation with hydrofluoric acid solution and of residual fluorides by heating with ammonia solution, and reweighing of the residue after heating at 600 °C. Is applicable to…

The method applies to alloys having a vanadium content less than or equal to 85 % (m/m). Specifies principle, reagents, apparatus, sample, procedure, expression of results, repeatability and test report.

Describes a method comprising the heating of the pitch under reflux with xylene, collection in a receiver of the condensate of xylene and water and measurement of the volume of water which separates out in the graduated part of the receiver. Applies to pitches having water contents in the range between 0,1 and 2 % (m/m).

Specifies a laboratory method for exposing samples to detrimental environments, measuring the effect on strength and shape and comparing the results with those from uncontaminated samples. Applies to drum brake linings and disc brake pads being of organic content and intended for service on road vehicles.

Specifies a method consisting in determining the amount of water entrained by azeotropic distillatiom, using an organic liquid immiscible with water, and collected in a graduated tube. Lists the apparatus to be used and describes sampling, procedure, expression of results and the details to be included in the test report. An example of an entrainment distillation apparatus is given in an annex.