ISO 4696-1:2015 PDF
Iron ores for blast furnace feedstocks — Determination of low-temperature reduction-disintegration indices by static method — Part 1: Reduction with CO, CO2, H2 and N2
Iron ores for blast furnace feedstocks — Determination of low-temperature reduction-disintegration indices by static method — Part 1: Reduction with CO, CO2, H2 and N2
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 20 августа 2015 г.
- Издание:
- ISO IS 4696 edition 3 version 1
- ICS:
- 73.060.10
ISO 4696-1:2015 specifies a method to provide a relative measure for evaluating the degree of size degradation of iron ores when reduced with carbon monoxide, carbon dioxide, hydrogen, and nitrogen, under conditions resembling those prevailing in the low-temperature reduction zone of a blast furnace. ISO 4696-1:2015 is applicable to lump ores, sinters, and hot-bonded pellets.
Abstract
Overview
ISO 4696-1:2015 specifies a static laboratory method to determine low-temperature reduction‑disintegration indices (RDI) of iron ores for blast furnace feedstocks. The standard provides a relative measure of the degree of size degradation (disintegration) that lump ores, sinters, and hot‑bonded pellets experience when reduced under conditions similar to the low‑temperature reduction zone of a blast furnace. Results support quality control, contract specifications and research into blast furnace feed behaviour.
Key Topics and Requirements
- Test principle: Isothermal reduction at 500 °C ± 5 °C for 60 minutes in a fixed bed followed by mechanical tumbling and sieving to calculate RDI values.
- RDI indices: Mass percentages reported for:
- material > 6.30 mm,
- material
Технические детали
- Технический комитет
- ISO/TC 102/SC 3 - Physical testing
- SKU
- ISO 4696-1:2015
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