Ammonium nitrate for industrial use — Determination of water content — Karl Fischer method
Describes a method applicable to products having water contents equal to or greater than 0,05 % (m/m). The principle of determination is based on the reaction of water with a solution of iodine and sulphur dioxide in a pyridine-methanol mixture (Karl Fischer reagent) which is standardized previously by titration of an exactly known mass of water. The end point of the reaction is then determined…
Sulphur for industrial use — Determination of chloride content — Photometric method
Is applicable to products having chloride contents, expressed as chlorine, greater than 2 mg/kg. The principle of determination consists in extracting the chlorides by boilling a test portion in aqueous 2-propanol, followed by a quantitative displacement of the thiocyanate ions of mercury(II) thiocynate by the chloride ions contained in an aliquot portion of the extraction solution, and reaction…
Sodium hexafluorosilicate for industrial use — Determination of iron content — 1,10 phenanthroline s...
Applicable to products having Fe contents between 0.0004 % (m/m) and 0.1 % (m/m). The residue from the determination of the loss of mass according to ISO 5444 is used to prepare the test sample. Decomposition of the hexafluorosilicate and elimination of silica by evaporation with hydrofluoric and sulphuric acids. Dissolution of the residue in hydrochloric acid and reduction of the iron(III) with…
Sodium fluorosilicate for industrial use — Determination of loss in mass at 105 degrees C
Applicable to the determination of losses equal to or more than 0.008 % (m/m). The principle consists in drying of a test portion at (105 1) °C for 6 h. The dried test portion is retained for the other determinations given in the annex. Has also been approved by the IUPAC.
Certification of Nondestructive Testing Personnel (Industrial Radiography
Method)
1. Scope
1.1 This standard provides recommended course guidelines for the minimum
essential training of, and a procedure for the certification of three
levles of personnel to perform industrial radiography according to
generally accepted and recognized procedures and techniques.
1.2 Such certification shall provide recognition of the qualifications and…
