Power sources for manual metal arc welding with covered electrodes and for the TIG process
Specifies the information to appear on the rating plate and describes test methods to verify the compliance of the power source with this International Standard. Applies to the types of power sources most commonly used in industrial applications for manual metal arc welding with covered electrodes and for the TIG process, except for oil-cooled power sources.
Caprolactam for industrial use — Determination of absorbance at a wavelength of 290 nm
The spectrometric measurement of the absorbance of a 50 % caprolactam water solution is carried out at a wavelength of 290 nm. The absorbance, expressed in relation to an optical path length of 1 m, is given by a specified formula in which AO is the correction for the difference in absorbances of the cells; A1 is the absorbance of the test solution, and 1 is the optical path length, in…
Caprolactam for industrial use — Determination of crystallizing point
A sample of liquid caprolactam, or a liquefied sample of crystalline caprolactam is cooled and the temperature at which crystallization occurs is observed.
Gives general instructions and specifies methods od analysis. The methods to be used are determination of density at 20 °C, determination ofdry residue after evaporation on a water bath, measurement of colour, determination of distillation yield, determination of water content, detection of the alkalinity or acidity to phenolphthalein, spectrometric detection of content of carbonyl compounds in…
Textile machinery and accessories — Dyeing and finishing machinery — Vocabulary for stenters
Gives an illustrated nomenclature of machines known as stenters, used in the textile finishing industry (bleaching, dyeing, printing and finishing), for the thermal treatment of fabric with maintainance of the width and adjustment of latter, if necessary. The terms used are placed under the following headings: Types of stenter; Machine features; Designation of side and indication of dimensions;…
