High-voltage cable plug and socket connections for medical X-ray equipment
Deals with essential dimensions to ensure mechanical interchangeability recommended dimensions, wiring connections to contacts of plug and socket, and marking of contacts of plug and socket. The contents of the corrigendum of April 2010 have been included in this copy.
Analogue signals for process control systems. Part 2: Direct voltage signals
Applicable to analogue direct voltage signals used in industrial process measurement and control systems. lt specifies ranges of analogue direct voltage signals and the signal common; it also deals with ripple content. The analogue direct voltage signal, unlike the analogue direct current signal specified in IEC 60381-1, is not intended for transmission over long distances. This standard does not…
Steel — Determination of nitrogen content — Spectrophotometric method
This method is applicable to non-alloy and low-alloy steels containing between 0.002 % (m/m) and 0.050 % (m/m) of nitrogen and less than 0.6 % (m/m) of silicon. It allows the determination only of the nitrogen content which can be converted to an ammonium salt. Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
Nitric acid for industrial use — Determination of chloride ions content — Potentiometric method
Applicable to products having chloride contents equal or more than 0,0002 % (m/m). Potentiometric titration of the ions with silver nitrate solution in a nitric acid acetone-water medium using a silver measurement electrode and a calomel reference electrode.
Ammonium sulphate for industrial use — Determination of chloride ions content — Potentiometric metho...
Applicable to products having chloride ion contents of equal to or more than 0.0005 % (m/m). Potentiometric titration of the ions with silver nitrate solution in a nitric acid-acetone-water medium, using a silver measurement electrode and a calomel referende electrode.
Ammonium nitrate for industrial use — Determination of chloride ions content — Potentiometric method
Applicable to products having chloride contents equal or more than 0.0002 % (m/m). Potentiometric titration of the ions with silver nitrate solution in a nitric acid-acetone-water medium using a silver measurement electrode and a colomel reference electrode.
Sodium sulphate for industrial use — Determination of sodium sulphate content — Gravimetric method
Applicable to products in which not all impurities are known or determined. The methods specified in ISO 3237 cannot be applied. The principle consists in dissolution of a test portion, removal of insoluble matter, iron, aluminium and calcium from the solution and evaporation to dryness in the presence of sulphuric acid. Heating and weighing of the total amount. Calculation of the sodium sulphate…
Sodium carbonate for industrial use — Determination of sulphur compounds content — Method by reducti...
Applicable to products having a S compounds content, expressed as sulphate, of equal to or more than 5 mg/kg. Bases of progressive neutralization, with evolution of carbon dioxide, by adding slowly a mixture of hydriodic acid and hypophosphoruos acid. Reduction of the compounds to hydrogen sulphide by heating. Distilation of the hydrogen sulfide, entrainment in a flow of oxygen-free nitrogen and…
Leather — Determination of sulphated total ash and sulphated water-insoluble ash
To determine the total mineral content, for example within the framework of a complete leather analysis, the inorganic substances can be ascertained by calculation or determined separately. The principle consists of the carbonization of the leather followed by treatment with sulphuric acid and ashing in an open crucible. The method is applicable to all types of leather.
