Microbiology of food and animal feeding stuffs -- Horizontal method for the detection of Shigella spp.
适用范围:ISO 21567:2004 specifies a horizontal method for the detection of Shigella species. Subject to certain limitations, ISO 21567:2004 is applicable to products intended for human consumption and the feedi...
发布日期:2004-11-01 实施日期:2004-11-01
Surface active agents - Determination of the pH value of solutions or dispersions
适用范围:This document specifies a method for the determination of pH value of solutions or dispersions of surface active agents and gives a method for their preparation. The method is applicable to aqueous sol...
Pruefverfahren fuer Wasser fuer industrielle Zwecke. Siliziumdioxid:reaktiv,total und suspendiert Water Used in Industry Part 104:Silica:Reactive,Total and Suspended Methodes d'essai de l'eau. usage in...
适用范围:Reactive silica by formation of molybdosilicic acid, reduction to molybdenum blue and spectrophotometric measurement. Applicable to up to 50 $Gmg of SiO$d2 in up to 100 ml. Total silica by prior fusion...
实施日期:1983-01-01
Test methods for forage seed suspension velocity
适用范围: 本标准规定了牧草种子悬浮速度的测定条件、测试设备、测试步骤与方法。 本标准适用于牧草种子及农作物种子、花卉、林木等种子悬浮速度的测定。
发布日期:2007-08-01 实施日期:2008-01-01
Microbiology of food and animal feeding stuffs. Preparation of test samples,initial suspension and decimal dilutions for microbiological examination. Part 4:Specific rules for the preparation of produc...
适用范围:This part of ISO 6887 specifies rules for the preparation of samples and decimal dilutions for the microbiological examination of food products other than those covered in other parts of ISO 6887. ISO ...
发布日期:2003-07-25 实施日期:2003-08-01
Sample preparation - Dispersing procedures for powders in liquids
适用范围:This International Standard was developed to help particle size analysts make good dispersions from powder/liquid combinations with which they are not experienced. It provides procedures for - wetting ...
实施日期:2010-03-01
Soil quality - Determination of pH
适用范围:This International Standard specifies an instrumental method for the routine determination of pH using a glasselectrode in a 1:5 (volume fraction) suspension of soil in water (pH in H20), in 1 mol/I po...
实施日期:2005-12-01
Method for the assessment of the degree of pigment or carbon black dispersion in polyolefin pipes, fittings and compounds
发布日期:2002-03-01 实施日期:2002-03-01
Method for Determination at Total Suspended Particles in Atmosphere
发布日期:1976-03-08 实施日期:1976-03-08
Grenzflaechenaktive Stoffe. Messung des pH-Wertes von Loesungen oder Dispersionen Surface active agents Determination of pH value of solutions or dispersions Agents de surface. Determination de la vale...
适用范围:This European Standard specifies a method for the determination of pH value of solutions or dispersions of surface active agents and gives a method for their preparation. The method is applicable to aq...
实施日期:2003-11-25
Determination of pH value of an aqueous suspension of pigments
适用范围:本标准规定了测定颜料水悬浮液pH值的通用试验方法。
发布日期:1986-08-25 实施日期:1987-07-31
实施日期:2008-11-01
Environmental tobacco smoke Estimation of its contribution to respirable suspended particles Determination of particulate matter by ultraviolet absorbance and by fluorescence
适用范围:本标准规定了环境烟草烟气(ETS)对可吸入悬浮颗粒物(RSP)影响率估测的采样和测定方法。
发布日期:2007-10-16 实施日期:2008-01-01
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