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73 MÄENDUS JA MAAVARAD
Uued standardid
ISO 23499:2026
Coal — Determination of bulk density of coal as it is handled in industrial practices
Käsitlusala: This document specifies a cone procedure for determining an uncompacted bulk density of crushed coal up to −45 mm nominal top size, as it is handled in industrial practices. It focuses on the uncompacted bulk density of coal resulting from flowing the material into a measuring container (box) in the absence of compacting forces. The determination of the bulk density of coal charged into coke ovens is a typical example.
This document also provides a method for determining the bulk density of dry powdered coal at −63 micrometres for boiler or utility application. It does not cover the determination of bulk density of coal in storage piles.
Alusdokumendid:
Asendab: ISO 23499:2013
Asendatud standardid
ISO 23499:2013
Coal -- Determination of bulk density for the use in charging of coke ovens
Käsitlusala: ISO 23499:2013 provides description of a cone procedure for determining an uncompacted bulk density of crushed coal less than 37 mm in size, such as is charged into coke ovens. It focuses on the uncompacted bulk density of coal resulting from flowing the material into a measuring container (box) in the absence of compacting forces.
ISO 23499:2013 does not cover procedures for determining a compacted coal bulk density nor to the testing of fine or powdered coal (for boiler or utility application) nor to the determination of bulk density of coal in storage piles.
Alusdokumendid:
Asendatud: ISO 23499:2026
Kavandid