ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] ONE of the major problems of coal analysis is the reduction of the sample taken in the field to a representative sample for laboratory work. From a bulk sample of coal, which in the case of large coal may amount to several hundredweights, it is necessary to prepare a small bottle of powdered coal ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/167980a0
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