Shell Water Detector
The Shell Water Detector (SWD) capsule determines the presence of finely dispersed
suspended water in jet fuel at concentrations lower than those normally detectable by visual
examination.
The presence of suspended water is indicated by a change in color of the centre portion of the
It changes from faint yellow to green if water is detected .
Each new-look box contains the same number of capsules (80), but there are now 8 tubes with 10 capsules per tube: previously, 8 capsules in 10 tubes. This change is permitted by the replacement of a desiccant sachet with a coating and reduces packaging waste.
The life for unused Shell Water Detector capsules is nine months from the time of
manufacture. The expiry date month and year is marked on the bottom of each tube of
capsules.
