Manganese ores — Determination of vanadium content — Titrimetric method and phosphotungstovanadate p...
Method I is applicable to manganese ores having vanadium contents greater than 0.05 % (m/m), method II is applicable to manganese ores having vanadium contents less than 0.05 % (m/m). This second edition cancels and replaces the first edition (i.e. ISO 553-1975). Should be read in conjunction with ISO 4297.
This second edition cancels and replaces the first edition (i.e. ISO 548-1975). Should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sample, procedure and expression of results.
Coal — Determination of the crucible swelling number
The sample is heated in a covered crucible under standard conditions to a final temperature of 820 +- 5 °C. The coke button obtained is classified by comparison with the outlines of a set of standard profiles. The number of the profile most closely corresponding to the coke button obtained is the crucible swelling number. Gas or electrical heating may be used. When using an electrically heated…
Aluminium and aluminium alloys — Determination of zinc content — Flame atomic absorption spectrometr...
The method is applicable to products having zinc contents between 0,002 and 6 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
Aromatic hydrocarbons — Determination of residue on evaporation of products having boiling points up...
Applicable to products having boiling points lower than or equal to 150 0C. The lower limit of detection is 1 mg/100 ml. Based on evaporation of a test portion in a weighed dish, and determination of the increase in mass of the dish, which represents the residue.
Wood — Determination of radial and tangential shrinkage
Specifies a method which determines the linear dimensions of test pieces after drying at a moisture content in equilibrium with the normal environment and at a moisture content equal to or greater than the saturation point of the cellular wall of wood.
Aircraft — Pressure fuel dispensing system — Test procedure and limit value for shut-off surge press...
Includes a standard method for testing. The method specified and the limit value apply to all ground systems, fixed and mobile. Also, because these both are standardized, necessary knowledge is provided for aiding proper design of the aircraft fill control valve shut-off characteristics.
