GB/T 25943-2010
Active
GB/T 25945-2010
Active
National standards
GB/T 25945-2010 Aluminium ores—Sampling procedures
GB/T 25945-2010 Aluminium ores—Sampling procedures
Basic Information
Standard Code:
GB/T 25945-2010
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Metallurgical raw materials and auxiliary materials
ICS Name:
Aluminum mine
Publish Date:
2010-12-23
Implement Date:
2011-09-01
Pages:
33 pages
Scope
This standard specifies the necessary conditions for sampling bauxite. Samples are prepared from the total samples obtained from flowing ore streams and in a stationary state, including on a constrained conveyor belt. Compared with other sampling procedures, sampling on a constrained conveyor belt is the reference method for sample collection. Sampling from flowing ore streams is the preferred method. Only when it is impossible to sample from flowing ore streams can static sampling be considered. The static sampling procedures specified in this standard are only intended to reduce certain sampling errors.
This standard applies to all sampling of flowing bauxite ore streams. The recommended procedures may not be suitable for certain extreme segregation situations, such as very wet viscous materials or very dry materials prone to dust generation. In such cases, it may be necessary to switch to sampling on a constrained conveyor belt.
Development Information
Referenced Standards
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
ISO 565:1990
GB/T 3358.1-1993 Terms for statistics—Part 1:Terms for general statistics
GB/T 3358.1-2009 Statistics—Vocabulary and symbols—Part 1:General statistical terms and terms used in probability
Adopt standards
ISO 8685:1992
Related Standards
GB/T 25944-2010
Active
GB/T 25944-2010 Aluminium ores—Experimental determination of the heterogeneity of distribution of a lot
GB/T 25946-2010
Active
GB/T 25946-2010 Aluminium ores—Experimental methods for checking the bias of sampling
GB/T 25947-2010
Active
GB/T 25947-2010 Aluminium ores—Determination of the moisture content of bulk material
GB/T 25948-2010
Active
GB/T 25948-2010 Aluminium ores—Determination of total iron content—Titanium trichloride reduction method
GB/T 25949-2010
Active