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ISO DIS 13909-3 2014 Edition, July 8, 2014 HARD COAL AND COKE - MECHANICAL SAMPLING - PART 3: COAL - SAMPLING FROM STATIONARY LOTS
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Availability date: 07/14/2021
Description / Abstract:
This part of ISO 13909 specifies procedures for the mechanical
sampling of coal from stationary lots, for example from wagons,
barges, ships and stockpiles. These procedures should be used when
it is not possible to sample the lots during loading or discharge
according to ISO 13909-2. Procedures for sample preparation are
given in ISO 13909-4.
This part is applicable to mechanical sampling from stationary
coal lots, to obtain samples from which test samples for the
determination of moisture, for general analysis including physical
and chemical tests, and for size analysis can be prepared in
accordance with the requirements and recommendations set out in ISO
13909-4.
In this part, the principles and procedures for designing a
sampling scheme are given, together with typical examples of
applications; in addition, practices for the execution of sampling
in different sampling situations are described. The methods
described are limited to those on which it is possible to conduct a
test for bias.