Heat exchangers — Verification of thermal balance of water-fed or steam-fed primary circuits — Princ...
A number of suitable arrangements of test apparatus are illustrated in the annex. ISO 3147 is applicable to tests of primary circuits performed in the steady-state condition, in accordance with the specifications laid down for each type of appliance in the relevant International Standards. Where appropriate, special arrangements required for certain types of appliance may also be given in these…
Zinc alloys — Determination of copper content — Electrolytic method
The method is applicable to zinc alloy Zn Al 4 Cu 1. It is suitable for the determination of copper contents between 0,5 and 3,5 %. This International Standard specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report.
Standard reference temperature for industrial length measurements
The temperature is fixed at 20 degrees centigrade, i.e. a metre gauge with the indication: reference temperature 20 degrees centigrade has at 20 degrees centigrade the same length as the international prototype at 0 degree centigrade.
Plugs and socket-outlets for domestic and similar general use. Standards.
Contains specification sheets for three groups of plugs and socket-outlets for domestic and similar general use:
Group A:American National Standards Institute (ANSI)
Group B:British Standards Institution (BSI)
Group C:International Commission on Rules for the Approval of Electrical Equipment (CEE)
This publication has the status of a technical report.
Plastics — Determination of residual styrene monomer in polystyrene by gas chromatography
The specified method is applicable both to styrene homopolymers and to butadiene modified polystyrene. It may be used also for the simultaneous determination of other volatile aromatic hydrocarbons in polystyrene. Dissolution of the polymer sample in chloroform or dichloromethane. Precipitation of the polymer by the addition of methanol and injection of a small volume of the remaining solution…
Prints and printing inks — Assessment of light fastness
Is in technical conformity with CEI specification 02-59 of the European Comittee of the Paint and Printing Ink Manufacturers' Associations, and is in agreement with the ISO Recommendations and International Standards on light fastness tests for textiles. Applies to print substrates such as paper, board, metal and plastics, and to all printing processes such as letterpress, litho and gravure…
Brown coals and lignites — Classification by types on the basis of total moisture content and tar yi...
Brown coals are classified in this International Standard according to the following properties: total moisture content calculated on the ash-free basis; tar hiels calculated on the dry, ash-free basis. In tables class numbers, group number and code numbers of brown coal types are given.
Textiles — Integrated conversion table for replacing traditional yarn numbers by rounded values in t...
This International Standard is intended to facilitate the changeover by industry and commerce from traditional yarn numbering systems to the Tex System. It provides a range of recommended rounded linear densities in the Tex System to replace the yarn numbers in the six main traditional numbering systems.
