GB/T 25945-2010: Aluminium ores -- Sampling procedures

Delivery: 9 seconds. Download (and Email) true-PDF + Invoice.
Get Quotation: Click GB/T 25945-2010 (Self-service in 1-minute)
Newer / historical versions: GB/T 25945-2010

Preview True-PDF

Scope

This Standard sets out requirements for the sampling of aluminium ores from moving
streams and stationary situations, including slopped-belt sampling, to provide gross
samples for sample preparation. Stopped-belt sampling is the reference method for
collecting ore samples against which other sampling procedures may be compared.
Sampling from moving streams is the preferred method. Sampling from stationary
situations should only be considered when sampling from moving streams is not
possible. The procedures described in this Standard for sampling from stationary
situations merely minimize some of the sampling errors.
Although this Standard is intended to cover all aluminium ore sampling from moving
streams. the procedures recommended may not be applicable in cases of extreme
segregation. For example, very wet ore due to its sticky nature. or very dry ore due to
generation of dust. In such cases it may be necessary to revert to stopped-belt sampling.

Basic Data

Standard ID	GB/T 25945-2010 (GB/T25945-2010)
Description (Translated English)	Aluminium ores -- Sampling procedures
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H30
Classification of International Standard	73.060.40
Word Count Estimation	34,366
Date of Issue	2010-12-23
Date of Implementation	2011-09-01
Quoted Standard	GB/T 3358.1; GB/T 25943-2010; GB/T 25944-2010; GB/T 25946-2010; GB/T 25947-2010; GB/T 25949-2010; GB/T 25950-2010; ISO 565-1990
Adopted Standard	ISO 8685-1992, IDT
Regulation (derived from)	National Standard Approval Announcement 2010 No.10 (Total No.165)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the necessary conditions for bauxite samples. Ore from the flow stream in the static state and includes the conveyor belt stopper obtain total sample prepared by the sample. Compared with other sampling procedures, sampling is limited to moving conveyor belt reference sample collection methods. Sampling from moving streams is a method of precedence. Only when the mine can not be sampled from the flow stream can be considered static sampling. This standard static sampling procedures just to reduce some of the sampling error. This standard applies to all mobile bauxite ore flow sampling. Perhaps the recommended procedures for some extreme segregation does not apply, such as very wet sticky material, easy to produce dust or very dry materials. In this case, it may be necessary to convert the sample is limited to moving conveyor belt.