Copper, lead, zinc and nickel concentrates. Experimental methods for checking the bias of sampling Ingestion-build-79769 BS EN ISO 17662:2016 supersedes

BS EN ISO 17662:2016 supersedes BS EN ISO 17662:2005 which is withdrawn

will be published in September 2020

with individual bedrooms and the provision of kitchen/sanitary facilities constructed within a fire compartment

It is applicable to all types of textile floor coverings used in the horizontal position

this European standard should only be used for guidance

Copper, lead, zinc and nickel concentrates. Experimental methods for checking the bias of sampling Ingestion-build-79769 BS EN ISO 17662:2016 supersedes1 Scope This International Standard specifies methods for checking whether there is any bias in the sampling of copper, lead, zinc and nickel concentrates, where the sampling is carried out in accordance with the methods specified in ISO 12743. These methods can also be used for comparing alternative sampling regimes, checking whether there is any bias in sample processing and for checking possible significant differences in sampling at different