19/30394894 DC - BS ISO 12743 AMD1. Copper, lead, zinc and nickel concentrates. Sampling procedures for determination of metal and moisture content

19/30394894 DC

BS ISO 12743 AMD1. Copper, lead, zinc and nickel concentrates. Sampling procedures for determination of metal and moisture content

Status : Current, Draft for public comment   Published : December 2019

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This document sets out the basic methods for sampling copper, lead, zinc and nickel concentrates from moving streams and stationary lots, including stopped-belt sampling, to provide samples for chemical analysis, physical testing and determination of moisture content, in accordance with the relevant International Standards. Where the concentrates are susceptible to significant oxidation or decomposition, a common sample that is sufficiently representative, i.e. unbiased and sufficiently precise, is used for moisture determination and chemical analysis to eliminate bias (see ISO 10251). Any large agglomerates (>10 mm) present in the primary sample are crushed prior to further sample processing. Sampling of concentrates in slurry form is specifically excluded from this document.

Stopped-belt sampling is the reference method for collecting concentrate samples against which mechanical and manual-sampling procedures can be compared. Sampling from moving streams is the preferred method. Both falling-stream and cross-belt samplers are described.

Sampling from stationary lots is used only where sampling from moving streams is not possible. The procedures described in this document, for sampling from stationary lots, only minimize some of the systematic sampling errors.




Standard Number19/30394894 DC
TitleBS ISO 12743 AMD1. Copper, lead, zinc and nickel concentrates. Sampling procedures for determination of metal and moisture content
StatusCurrent, Draft for public comment
Publication Date02 December 2019
Normative References(Required to achieve compliance to this standard)ISO 12744, ISO 10251, ISO 13292
Informative References(Provided for Information)ISO 3534-1, ISO 13543
International RelationshipsISO 12743:2018/DAmd 1
Draft Expiry Date20 January 2020
DescriptorsTest specimens, Metalliferous minerals, Chemical analysis and testing, Moisture measurement, Concentrates, Nickel ores, Sampling methods, Zinc ores, Copper ores, Determination of content, Lead ores, Physical property measurement
ICS73.060.99
Title in FrenchConcentrés de cuivre, de plomb, de zinc et de nickel — Procédures d'échantillonnage pour la détermination de la teneur en métal et de l'humidité — AMENDEMENT 1
CommitteeNFE/36
PublisherBSI
FormatA4
DeliveryYes
Pages84
File Size2.811 MB
NotesWarning: this draft is not current beyond its expiry date for comments.
Price£20.00


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