Chemical service
Chemical service: scope, limits of use and technical checkpoints.
5 guides
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How to read a chemical compatibility table
A chemical compatibility table is a pre-screening source; on its own it is not approval for use of a finished hose assembly. The fluid's concentration, temperature, contact time and the seal/fitting materials along with…
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Recording concentration and temperature in chemical transfer
Chemical suitability is assessed based on concentration, temperature, contact time and mode of use in addition to the chemical's name. A material that appears suitable in a table may not give the same result at a differ…
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How to select hose and seal together for solvent transfer
In solvent transfer, the seals, connection metal and, if necessary, electrical properties are assessed as much as the hose inner tube. A material appearing resistant to a solvent does not show that the whole assembly is…
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Requesting manufacturer approval for chemical mixtures
For mixtures, each component appearing suitable individually does not prove that the mixture is also suitable. The actual composition, ratio, temperature and mode of contact must be communicated to the manufacturer. Ins…
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Washing and cross-contamination risk in chemical transfer
The cleaning method must be suitable for the hose and must also meet the requirements of the next product to be conveyed. Removing visible dirt does not on its own prove that the risk of cross-contamination has been eli…
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