GB/T 25945-2010 (English Version) PDF

Standard No.: GB/T 25945-2010
Language: Chinese, Available in English version
Release Date: 2010
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 25945-2010

Scope: This standard specifies the necessary conditions for sampling bauxite, taking aggregate samples for sample preparation from flowing ore streams and at rest, including on restrained conveyor belts. Sampling on a restraint conveyor is the reference method of sample collection compared to other sampling procedures. Sampling from mobile streams is the preferred method. Static sampling should only be considered when it is not possible to sample from a mobile stream. The static sampling procedure specified in this standard is intended only to minimize some sampling errors. This standard applies to sampling of all mobile bauxite streams. The recommended procedure may not be suitable for some extreme segregation situations, such as very wet sticky materials, or very dry materials prone to dust generation. In this case it may be necessary to switch to constrained transport upsampling.

GB/T 25945-2010 Referenced Document

GB/T 25943-2010 Aluminium ores.Experimental methods for checking the precision of sampling
GB/T 25944-2010 Aluminium ores.Experimental determination of the heterogeneity of distribution of a lot
GB/T 25946-2010 Aluminium ores.Experimental methods for checking the bias of sampling
GB/T 25947-2010 Aluminium ores.Determination of the moisture content of bulk material
GB/T 25949-2010 Aluminium ores.Preparation of samples
GB/T 25950-2010 Aluminium ores.Experimental determination of the heterogeneity of constitution
GB/T 3358.1 Statistics-Vocabulary and symbols-Part 1:General statistical terms and terms used in probability
ISO 565:1990 Test sieves; metal wire cloth, perforated metal plate and electroformed sheet; nominal sizes of openings