Acoustics — Measurement of sound insulation in buildings and of building elements using sound intens...
ISO 15186-3:2002 specifies a sound intensity method to determine the sound reduction index and the element-normalized level difference of building elements at low frequencies. This method has significantly better reproducibility in a typical test facility than those of ISO 140-3, ISO 140-10 and ISO 15186-1. The results are more independent of the room dimensions of the laboratory and closer to…
Digital codification of dental laboratory procedures
ISO/TR 15599:2002 provides a code of dental laboratory procedures which is digital so as to render it language-independent. This makes it convenient to use as a basic reference for existing or future dental codes, and ensures their compatibility through simple softwares, which is the fundamental goal of the exercise.
In addition the digital code is intended to provide, as a result of built-in…
Optical fibres - Part 1-42: Measurement methods and test procedures - Chromatic dispersion
Four methods are described for measuring chromatic dispersion: (a) phase shift, (b) spectral group delay in the time domain, (c) differential phase shift, and (d) interferometry. Methods (a), (b) and (c) apply to class A1 graded-index multimode fibres and class B single-mode fibres. Method (d) applies to single-mode fibres, class B1 to B3 in the 1000 nm to 1700 nm wavelength range. The methods…
CAN/CSA-A5-98 Portland Cement
1. Scope
1.1 Scope
This Standard addresses the definition of Portland cement; the chemical, physical, and uniformity requirements; the tests required; the procedures for inspection and sampling; the units of measurement, packaging, marking, and storage.
1.2 Types
The five types of Portland cement covered in this Standard are identified as follows:
Type…
Water quality — Determination of surfactants — Part 1: Determination of anionic surfactants by measu...
Spectrometric method for the determination of anionic surfactants by measurement of the methylene blue index (MBAS) in aqueous media. Suitable for drinking water, surface water and waste water. Does apply for laboratory scale and technical large-scale waste-water treatment plants.
Methods of Testing Pulp and Paper
The Laboratory Beating of Pulp
(Valley Beater Method)
1. PURPOSE AND SCOPE
1.1 This method is intended to indicate the response of the fibre to a
standardized mechanical treatment, as an index of its papermaking
quality.
1.2 This method may be used to define the papermaking quality of pulp by
subjecting it to treatment in a standardized laboratory beater
according to a definite schedule.
1.3 This method…
Optics and optical instruments — Veiling glare of image forming systems — Definitions and methods of...
Adopts both the veiling glare index (VGI) and the glare spread function (GSF) as measures of the veiling glare characteristics of optical and electrooptical imaging systems. Laboratory measurement techniques are described in general terms and recommendations are made regarding the performance of the main subunits of the equipment. The measurement techniques described are chiefly valid for the…
Methods of Testing Pulp and Paper The Determination of Freeness
1.1
The Canadian Standard Freeness test is designed to give a measure of the
rate at which a dilute suspension of pulp may be dewatered. The drainage rate,
or freeness, has been shown to be related to the surface conditions and
swelling of the fibres, and is a useful index of the amount of mechanical
treatment given to the pulp.
1.2
The procedure was originally designed to yield a test value…
Soils - Determination of Minimum and Maximum Densities of Cohesionless Soils -
Vibrating Table Test
Determines the testing methods that shall be used to determine minimum and
maximum densities of cohesionless soils in the laboratory by pouring the loose
material and by densification of the material using vibration respectively.
These two densities are used to calculate the relative density index.
Laboratory apparatus — Vocabulary relating to apparatus made essentially from glass, porcelain or vi...
In addition to terms used in the three official ISO languages (English, French, Russian) the equivalent ones are given in German. A list of sections and subsections is given followed by the names for items of apparatus. Closely all apparatus are accompanied by a drawing. The vocabulary has an index of the proper names used to identify some of the items and a multilingual index is included.