Hydraulic fluid power — Filters — Evaluation of pressure drop versus flow characteristics
Specifies the method of measuring the pressure drop across a fluid filter under various conditions of flow. Two standards of measurement are specified: class A - for accurate evaluation for referee purposes - requiring laboratory conditions; class B - for evaluation for general purposes - requiring test facilities less stringent that laboratory conditions. Figure 1 shows an example for a suitable…
Vacuum technology — Vocabulary — Part 1: General terms
The theoretical definitions are given as precise as possible, bearing in mind the need for use of the concept in practice. In addition to terms used in the three official ISO-languages (E, F, R) the equivalent terms in German are given. The annexes deal with an alphabetical list of pressure units before the adoption of SI and conversion factors and alphabetical list of symbols.
Vacuum technology — Vocabulary — Part 2: Vacuum pumps and related terms
In addition to terms used in the three official ISO-languages (E, F, R) the equivalent terms in German are given. The annex provides a classification table of vacuum pumps in the above mentioned languages.
Vacuum technology — Vocabulary — Part 3: Vacuum gauges
In addition to terms used in the three official ISO-languages (E, F, R) the equivalent terms in German are given. General terms, general categories and characteristics are provided. The last two subsections deal with total pressure and partial pressure vacuum pumps, resp.
This second edition cancels and replaces the first edition (1973). Specifies the dimensions of the 50 coupling pin /dia. 50,8 mm (2 in)/ which is used for coupling semi-trailers to prime movers, taking into account the limitations of weight generally laid down by official requirements. Some figures illustrate shapes and the difference of types.
Specifies the requirements of refined copper listed in table 1, in the form of refinery shapes (unwrought products). The refinery shapes included are cathodes, horizontally, vertically and continuously cast wire bars, cakes, billets and ingots. This second edition cancels and replaces the first edition (i.e. ISO 431-1972), the ISO Recommendations R 1428, R 1429, and R 1430, and the International…
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…
