BS ISO 562:2010 pdf download

12-02-2020 comment

BS ISO 562:2010 pdf free download. Hard coal and coke – Determination of volatile matter.
In this International Standard the volatile matter is determined as the loss in mass, less that due to moisture, when coal or coke is heated out of contact with air under standardized conditions. The test is empirical and, in order to ensure reproducible results, it is essential that the rate of heating, the final temperature and the overall duration of the test be carefully controlled. It is also essential to exclude air from the coal or coke dunng heating to prevent oxidation. The fit of the crucible lid is, therefore, critical. The moisture content of the sample is determined at the same time as the volatile matter so that the appropriate correction can be made.
Mineral matter associated with the sample can also lose mass under the conditions of the test, the magnitude of the loss being dependent on both the nature and the quantity of the minerals present.
NOTE: When applying this International Standard for classification purposes, to samples obtained directly from coal seams, it is required to give special care to the ash.
The apparatus and procedure are specified so that one or more determinations can be performed simultaneously in the furnace.
BS ISO 562:2010 specifies a method of determining the volatile matter of hard coal and of coke. It is not applicable to brown coals and lignites.
Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 687, Solid mineral fuels — Coke — Determination of moisture in the general analysis test sample;
ISO 11722, Solid mineral fuels — Hard coal — Determination of moisture in the general analysis test sample by drying in nitrogen;

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