Norm

NEN-EN-ISO 9514:2004 Ontw. en

Verven en vernissen - Bepaling van de houdbaarheid van vloeibare systemen - Voorbereiding en conditionering van monsters en aanbevelingen voor de beproeving

  • Deze norm is ingetrokken sinds 01-04-2005

25,62

Over deze norm

Status Ingetrokken
Aantal pagina's 11
Commissie Verfwaren
Gepubliceerd op 01-01-2004
Taal Engels
This International Standard describes a method, carried out under standard conditions, for preparing and storing a sample and subsequently assessing its pot-life by measuring a particular property. Reactive systems curing within a short, e.g. 3-h, period of time will have the end of their pot-life so near to the gel point that they will need to be tested for that particular property in accordance with ISO 2535. Special "low-temperature" grades will need to be tested at a lower specified temperature to reflect the conditions under which they will be used in practice. Additionally, it may be a requirement to determine pot-life at a specified temperature or temperatures in order to cover a range of practical conditions under which a paint will be used. The value obtained may be subject to modification by suppliers for practical reasons (e.g. starting temperature) when giving advice to users and should then be called the "practical pot-life" The method may be carried out either as a pass/fail test by determining the particular property after a specified period of time, or as determination of the pot-life by repeating determinations at convenient intervals of time. This International Standard is not intended for in situ control on products during their application. It is intended to determine "pot-life" in the laboratory.

Details

ICS-code 87.040
Nederlandse titel Verven en vernissen - Bepaling van de houdbaarheid van vloeibare systemen - Voorbereiding en conditionering van monsters en aanbevelingen voor de beproeving
Engelse titel Paints and varnishes - Determination of the pot-life of liquid systems - Preparation and conditioning of samples and guidelines for testing
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