共找到 150 条与 轻金属矿 相关的标准,共 10 页
Methods for chemical analysis of titanium concentrate (rock minerals).The titanium chloride-potassium dichromate volumetric method for the determination of total iron content
Methods for chemical analysis of titanium concentrate (rock minerals).The potassium dichromate volumetric method for the determination of ferrous oxide content
Code for design of land reclamation project of bauxite mines
Sets out a dry sieve method, using electroformed sieves, for determining the mass distribution of the particle sizes in aluminium oxide primarily used for the production of aluminium.
Alumina - Determination of the mass distribution of particle sizes using electroformed sieves
Specifies the experimental methods to be applied for checking the precision of sampling of aluminium ores, expressed in terms of the standard deviation, being carried out in accordance with the methods prescribed in ISO 8685.
Aluminium ores - Experimental methods for checking the precision of sampling
The heterogeneity of distribution is characterized by the distribution variance and is determined by experimentally measuring the sampling variance. Because both the composition variance and distribution variance contribute to the measured sampling variance, it is necessary to separate these two components. Two methods of data analysis are permitted: Visman's theory of sampling which uses classical statistics and the variogram method which gives a better estimate because of taking into account serial correlation between adjacent increments.
Aluminium ores; experimental determination of the heterogeneity of distribution of a lot
Method for determination of ignition lossfor export Europium-Rich,Yttrium-Rich,Sm-Eu-Gd qxides.Gravimetric method
Method for determination of total rare earth qxides contentfor export Europium-Rich,Yttrium-Rich,Sm-Eu-Gd qxides.Gravimetric method
Method for determination of moisture contentfor export Europium-Rich,Yttrium-Rich,Sm-Eu-Gd qxides.Gravimetric method
Sets out requirements for the sampling from moving streams and stationary situations, including stopped-belt sampling, to provide gross samples for sample preparation. The procedures recommended may not be applicable in cases of extreme segregation, e.g. very wet ore due to its sticky nature, or very dry ore due to generation of dust.
Aluminium ores; sampling procedures
Specifies a titrimetric method, free from mercury pollution, using potassium dichromate as titrant after reduction of the trivalent iron by tin(II) chloride and titanium(III) chloride. Applies to ores containing between 2 % and 50 % of iron oxide.
Aluminium ores; determination of total iron content; titanium trichloride reduction method
Specifies methods of treatment of gross samples and subsamples in order to preparate samples for the determination of moisture, chemical analysis and physical testing. Annex A forms an integral part of this standard. Annexes B, C, D, E and F are for information only.
Aluminium ores; preparation of samples
Specifies an experimental method for determining the heterogeneity of constitution which is required for the determination of the minimum sample mass. Shows an example of typical calculation.
Aluminium ores; experimental determination of the heterogeneity of constitution
Specifies experimental checking methods, if the sampling is carried out in accordance with ISO 8685 or ISO 6140. Describes the analysis of experimental data as well as sampling and sample preparation methods. Includes numerical examples (tables 3 to 5).
Aluminium ores; experimental methods for checking the bias of sampling
Sets out an X-ray diffraction method for the determination of the alpha alumina content of smelter-grade alumina containing alpha phase levels up to 50%.
Alumina - Determination of alpha alumina content by X-ray diffraction
Prezentul standard stabile?te parametrii principali ai grupurilor frigorifice pentru lichide, cu circuit ?nchis, compuse din compresor cu piston cu o treapt? de comprimare (deschis, se-miermetic sau ermetic), condensator (r?cit cu ap? sau cu aer), r?citor
Refrigerating equipment. Refrigera tors for liquids, with piston compressors main parameters
Prezentul standard stabile?te parametrii principali ai vaporizatoarelor r?citoare de aer ?i condensatoarelor r?cite cu aer, prin convec?ie for?at?, utilizate ?n instala?iile frigorifice.
Refrigerating equipment. Air vaporizer coolers and air cooled condensers by forced convection. Main parameters
Is applicable to ores containing between 0,005 % (m/m) and 0,1 % (m/m) of vanadium pentoxide. Specifies principle, reagents, apparatus, sampling and samples, procedure, expression of results and test report. Annex A (normative) gives the flowheet of the procedure for the acceptance of test results, annex B (informative) shows the graphical representation of precision data.
Aluminium ores; determination of vanadium content; BPHA spectrophotometric method
Method using fused cast bead technique. General requirements for instrumentation and full details of calibration and determination of correction factors.
Analysis of aluminium ores - Method for multi-element analysis by wavelength dispersive X-ray fluorescence
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号