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The lead is extracted from a diluted test portion into a solution of diethylammonium diethyldithiocarbamate in xylene. The xylene extract is separated and aspirated into the acetylene/air flame of an atomic absorption spectrometer. The spectrometric measurements are carried out at a wavelength of about 217 nm or, alternatively, about 283 nm. The method is applicable to phosphoric acids having…

Specifies a method based on the fusion of a test portion with sodium carbonate and boric acid and dissolution in perchloric acid solution, followed by formation of the ammonium molybdophosphate complex and extraction of the complex with isobutyl acetate. The solution is absorbed into an acetylene/dinitrogen monoxide flame and the molybdenum, and hence the phosphorus, is determined by measuring…

Defines physical factors usually employed in the industrial cold storage, such as temperature, relative humidity, air-circulation ratio, rate of air change, and provides information concerning their measurement, inclusive suitable instruments.

This part of ISO 6743 establishes the detailed classification of family F which belongs to the class L (lubricants, industrial oils and related products) and should be read in conjunction with ISO 6743-0.

Within this class 18 families of products are defined according to application in order to cover, as far as possible, all the applications for which these products are used. The detailed classification of each family will be given in subsequent parts of ISO 6743 as the need arises. The classification concerns only new products.

Establishes the detailed classification. Should be read in conjunction with ISO 6743-0. Each category is designated by a code. The designation can be supplemented by the addition of viscosity grades. Products are designated in a uniform manner for example in complete or in an abbreviated form.

Gives general instructions ans also specifies the methods to be used for the determination of density at 20 C, the determination of aldehydes and ketones content, the determination of destillation yield, the determination of dry residue after evaporation on the water bath, the determination of bromine number, the measurement of colour and the determination of water content. International…

The principle consists in titration of the acidity of a test portion with a standard volumetric sodium hydroxide solution, using phenolphthalein as indicator. This document should be read in conjunction with ISO 755/1. International Standards ISO 755/1, ISO755/2 and ISO 755/3 cancel and replace ISO Recommendation R 755-1968, og which they constitute a technical revision. It as also been approved…

The principle consists in treatment of a test portion with sufphuric acid solution under specified conditions, comparison of the colour developed with that of the same volume of an agreed colour standard. By agreement between the interested parties, the colour developed may be measured in Hazen units (platinum-cobalt scale).