Propan-2-ol for industrial use — Methods of test — Part 1: General
Gives general intructions and specifies the methods for the determination of density at 20 °C, for the determination of boiling range, for the determination of dry residue after evaporation on a water bath, for the measurement of colour, for the determination of water content and of aldehydes and ketones content. International Standards ISO 756/1, ISO 756/2 and ISO 756/3 cancel and replace ISO…
Rubber compounding ingredients — Carbon black — Determination of sulphur content
Lays down two methods for the determination of the total sulphur content in all types of carbon black for use in the rubber industry: Method A, using an oxygen bomb calorimeter; Method B, using a combustion furnace. The total sulphur content, expressed as a percentage by mass, is given by a formula.
Sawn timber — Determination of the average moisture content of a lot
Two methods are specified: a) Measuring the electrical resistance or conductance of the test pieces using an electrical moisture meter and b) determining the loss in mass after drying test pieces until absolutely dry.
Aluminium and aluminium alloys — Determination of lead content — Flame atomic absorption spectrometr...
The method is applicable to products having lead contents between 0,01 and 1,5 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
Aluminium and aluminium alloys — Determination of chromium content — Flame atomic absorption spectro...
The method is applicable to products having chromium contents between 0,003 and 0,6 % (m/m). It may also be used for higher chromium contents Äup to 1,5 % (m/m) for instanceÜ. Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
Manganese ores — Determination of chromium content — Diphenylcarbazide photometric method and silver...
Method I is applicable to manganese ores having chromium contents less than 0.1 % (m/m), method II is applicable to manganese ores having chromium contents greater than 0.1 % (m/m). This second edition cancels and replaces the first edition (i.e. ISO 619-1975). Should be read in conjunction with ISO 4297.
Solid mineral fuels — Determination of arsenic content using the standard silver diethyldithiocarbam...
The sample is oxidized by nitric and sulphuric acids or by the use of Eschka mixture. Then, using the method specified in ISO 2590, the arsenic is reduced by zinc in sulphuric acid or hydrochloric acid medium. The arsine formed is absorbed in a solution of silver diethyldithiocarbamate in pyridine. The purplish-red colour produced by the colloidally dispersed silver is measured photometrically at…
Manganese ores — Determination of sulphur content — Barium sulphate gravimetric methods and sulphur ...
Describes three methods: methods I and II are gravimetric methods which are applicable to maganese ores having sulphur contents greater than 0.01 % (m/m), and method III is a titrimetric method. Should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sample, procedure and expression of results. A figure illustrates the apparatus for determination of sulphur content…
