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.
Sintered metal materials, excluding hardmetals — Determination of apparent hardness — Part 2: Case-h...
Applies to sintered materials which have been heat treated in such a way that hardness is not uniform in the section to a depth of 5 mm below the surface (by treatments such as carburizing, carbonitriding, nitrocarburizing or sulphidizing). Gives principle, apparatus, sampling and preparation of test pieces, test requirements, expression of results and test report.t.
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.
Cellular plastics — Determination of volume percentage of open and closed cells of rigid materials
Specifies a general method ba measurement first of geometrical volume and of the air impenetrable volume of test specimens. This method provides for correcting the apparent open cell volume by taking into account the surface cell opened by cutting during specimen preparation. Two alternative methods and corresponding apparatus are specified for the measurement of the impenetrable volume. The…
Conveyor belts — Formula for transition distance on three equal length idler rolls
Specifies the formula to calculate conveyor belt transition distances. Tabulates the ratios of belt tension at transition to maximum rated belt tension from 1,0 to 0,05. Three figures illustrate shapes and reference quantities of concern. An annex gives the derivation of the formula for transition distance.
Air distribution and air diffusion — Aerodynamic testing and rating of constant and variable dual or...
Specifies methods for the aerodynamic testing and rating of assemblies suitable for use with air distribution systems operating at high or low velocity and high or low pressure. The tests cover: a) leakage past a closed valve; b) casing leakage; c) characteristics of the constant or variable flow rate controller; d) degree of temperature mixing achieved by a dual duct box; e) flow rate…
