Chemical and hygienic transfer
Technical reference and selection guides on chemical and hygienic transfer.
15 guides
-
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…
-
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…
-
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…
-
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…
-
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…
-
How to assess a conformity document for food hose
A food conformity document must be read together with which product, which material and which contact conditions it was issued for. The manufacturer, product code, regulatory basis, food type, temperature and duration m…
-
Selection for fatty food and alcoholic beverage transfer
Suitability for fatty foods and products containing alcohol should not be considered the same as general water-based food service. The food type, fat/alcohol content, temperature, duration and cleaning cycle must be spe…
-
How do CIP and SIP conditions affect hose selection?
CIP refers to the cleaning-in-place approach and SIP to sterilization-in-place. In addition to the production fluid, the hose and seals must also meet the chemical, temperature and duration conditions of these cycles. T…
-
Checklist for taste- and odor-sensitive applications
Taste and odor assessment is a quality topic separate from, but related to, food contact suitability. The material, previous use, cleaning agent and storage conditions are examined. Appearing odorless or having a genera…
-
Dead volume in hygienic fitting and hose joints
Hygienic connection selection is not just about stainless material or an easily removed clamp. The internal passage, seal placement, gaps, drainage and cleanability are assessed together. Two parts being connectable doe…
-
Documents required for drinking water hoses
When selecting a hose for drinking water, the country where the product will be used, the water temperature, the contact condition and the product code covered by the document must be determined. General food-contact su…
-
Questions for a hose specification in pharmaceutical processes
In a pharmaceutical and bioprocess hose specification, the fluid, the cleaning/sterilization cycle, material traceability, particulates and process quality requirements are defined together. A biocompatibility or materi…
-
Hose outer surface in cleanroom applications
In cleanroom use, the hose's suitability for the internal fluid is evaluated separately from particle generation in the surrounding environment, cleanability and packaging requirements. A smooth or light-colored outer s…
-
Single-use and reusable transfer lines
The choice between single-use and reusable hose systems is made according to the intended use of the process and the validation approach. A single-use design should not be assumed to be cleanable and reusable; nor shoul…
-
Food-grade claims versus approval of the finished hose
A food-grade material and a finished hose assembly suitable for a food application are not the same thing. The inner tube, seal, fitting, assembly, cleaning and actual service conditions must be evaluated together. The …
Customers with an account can access all guides, terms and calculators. Sign in to see all guides