ISO/TC 226/WG 2 - Cathodes and ramming paste

This document specifies a method for the determination of the resistance to physical abrasion of a cathode sample.

This document specifies a method that covers the determination of linear expansion under external pressure due to sodium penetration in cathode-block materials used in the production of aluminium. The linear expansion of the blocks depends on the sampling direction due to anisotropy.

This document specifies the determination of expansion/shrinkage during baking of cold and tepid ramming pastes used in the production of aluminium.

ISO 15379-2:2015 specifies a method that covers the determination of linear expansion under external pressure due to sodium penetration in cathode-block materials used in the production of aluminium. The linear expansion of the blocks depends on the sampling direction due to anisotropy.

ISO 12986-1:2014 specifies a three-point method to determine the flexural strength of carbon and solid graphite materials at room temperature.

ISO 18515:2014 specifies a method to determine the compressive strength of solid carbon and graphite materials at room temperature.

ISO 12986-2:2014 specifies a four-point method to determine the flexural strength of carbon and solid graphite materials at room temperature.

ISO 11706:2012 describes a method for the determination of the fracture energy at room temperature. This property is relevant for the thermal shock resistance of prebaked anodes used in the electrolytic cell.

This International Standard specifies a reference method for determining the total sulfur content of calcined coke and calcined carbon products by the Eschka method, provided that they contain a minimum of by mass and preferably less than by mass of sulfur.

This International Standard specifies a method for the determination of the electrical resistivity of cathode blocks and baked anodes used in the production of aluminium, using samples at ambient temperature.

This part of ISO 8007 specifies procedures for sampling consignments of cathode blocks used in the production of aluminium and for taking test samples from individual blocks.

This part of ISO 8007 specifies procedures for the creation and execution of a sampling plan for prebaked anodes from a large consignment or from a batch. NOTE The term "batch" can be substituted by the term "lot" if desired. This part of ISO 8007 also specifies the preferred locations for taking test samples from individual anodes. Cathode blocks and prebaked anodes are considered separately. Procedures for sampling cathode blocks are given in ISO 8007-1. For advice on safety, the reader is referred to ISO 3165:1976, Sampling of chemical products for industrial use — Safety in sampling.

Describes a laboratory vibration mill procedure for the determination of the grain stability of calcined coke for the manufacture of carbon products used in the manufacture of aluminium.

Provides a method for the determination of the tapped bulk density of granular carbon and graphite materials. The carbonaceous materials are used in the manufacture of carbon electrodes for the production of aluminium.

Cancels and replaces the first edition (1988). Specifies a method for the determination, by gravimetric analysis, of the volatile matter in green coke used in the production of aluminium. Applicable to green cokes having volatile matter contents greater than 1 % (m/m).

ISO 15379-1:2015 specifies a method that covers the determination of linear expansion under external pressure due to sodium penetration in cathode-block materials used in the production of aluminium. The linear expansion of the blocks depends on the sampling direction due to anisotropy.

ISO 12986-2:2009 specifies a four-point method to determine the flexural strength of carbon and solid graphite materials at room temperature.

ISO 18515:2007 specifies a method to determine the compressive strength of carbonaceous and graphite materials (solids), for the production of aluminium, at room temperature.

ISO 14428:2005 specifies the determination of expansion/shrinkage during baking of cold and tepid ramming pastes used in the production of aluminium.

Describes a method for the determination of the electrical resistivity of granular carbon (calcined or graphitized) used in the manufacture of carbon electrode for the production of aluminium.