Soil quality. Pretreatment of samples for determination of organic contaminants first edition
适用范围:This International Standard specifies three methods for the pretreatment of soil samples in the laboratory prior to the determination of organic contaminants: — if volatile organic compounds are to b...
实施日期:2003-03-15
Standard Test Methods for Precipitated Silica. Surface Area by Single Point B.E.T. Nitrogen Adsorption
适用范围:<p id="s00013">These test methods measure the approximate surface area of precipitated hydrated silicas that is available to the nitrogen molecule using an approximation of the B.E.T. method. While the...
实施日期:1996-06-10
Workplace atmospheres - Controlling and characterizing uncertainty in weighing collected aerosols (ISO 15767:2009)
适用范围:This International Standard provides recommendations for controlling the analytical uncertainty asssociated with aerosol collection medium instability.
实施日期:2010-10-01
Aluminium oxide used for the production of aluminium -- Determination of particles passing a 20 micrometre aperture sieve
适用范围:ISO 23202:2006 sets out a wet-sieving procedure for the determination of the percentage by mass of particles of smelter-grade alumina passing a 20 micrometre aperture sieve. This procedure is applicabl...
发布日期:2006-06-01 实施日期:2006-06-01
Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis
适用范围:<p>The method of powder dispersion in a liquid has a significant effect on the results of a particle size distribution analysis. The analysis will show a too-coarse, unstable, or nonrepeatable distribu...
实施日期:2010-09-01
Determination of particle size distribution -- Single particle light interaction methods -- Part 2: Light scattering liquid-borne particle counter
适用范围:ISO 21501-2:2007 describes a calibration and verification method for a light scattering liquid-borne particle counter (LSLPC), which is used to measure the size and particle number concentration of par...
发布日期:2007-05-01 实施日期:2007-05-01
适用范围:本部分规定了铁路碎石道砟粒径级配的试验方法与计算。本部分适用于铁路碎石道砟粒径级配的试验。
发布日期:2008-11-14 实施日期:2008-12-01
Measurement and characterization of particles by acoustic methods -- Part 2: Guidelines for linear theory
适用范围:ISO 20998-2:2013 describes ultrasonic attenuation spectroscopy methods for determining the size distributions of a particulate phase dispersed in a liquid at dilute concentrations, where the ultrasonic...
发布日期:2013-08-01 实施日期:2013-08-01
发布日期:2012-03-31
实施日期:2002-11-11
Metallic powder - Determination of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement (ISO 10076:1991)
Hydraulic fluid power. Calibration of liquid automatic particle counters. Procedures used to certify the standard reference material srm 2806 first edition
适用范围:This Technical Report describes the procedures used by the United States National Institute of Standards and Technology (NIST) for the certification of the calibration material SRM 2806, which is used ...
实施日期:2002-09-15
实施日期:1998-06-01
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