Radio interference characteristics of overhead power lines and high-voltage equipment. Part 2: Metho...
The methods of measurement detail the techniques and procedures for
use when measuring fields on site near to an overhead line and also
the techniques and procedures for making laboratory measurements of
interference voltages and currents generated by line equipment and
accessories.
The procedures for determining limits define the expected values of
radio noise field and the width of the "…
Rubber, vulcanized — Determination of adhesion to wire cord
Two methods are given which are applicable primarily to test pieces prepared in the laboratory under standard conditions, such as may be used for the development and control of materials and processes used in the manufacture of products reinforced with wire cord. Test pieces of cord and rubber are prepared together by vulcanizing them under pressure. In method 1 the exterior surface of the rubber…
Industrial-process control valves. Part 8: Noise considerations. Section One: Laboratory measurement...
Defines equipment, methods and procedures for obtaining laboratory measurements of airborne sound-pressure levels radiated by control valves and/or associated piping configurations, including fixed restrictions, through which compressible fluids are passing. Provides a method of testing the noise-generating characteristics of control valves. The noise characteristics to be determined are useful…
Chemical products for industrial use — Sampling techniques — Solid chemical products in the form of ...
From the lot to be sampled a certain number of increments is taken. The increments are mixed to form either a bulk sample or several primary samples, depending on the purposes of the sampling. By means of replicate reductions a reduced sample is prepared from the bulk sample or from each primary sample, then several laboratory samples, each stage of the division being preceded in each case by…
Soils - Moisture-Density Relations Modified Proctor Test
The present standard describes the method to determine the relation between the
moisture content and the density of soils and soil aggregates when these are
compacted in standard moulds using 4,54 kg rammers dropped a height of 457 mm.
Four methods are described herein.
NOTE 1 - The laboratory compaction tests described in this standard generally
provide good measures of optimum moisture…
