Magnaflux PeneCert™ Service
Non Destructive Testing (NDT) specifications require the regular testing of in-use penetrant materials to ensure that they are maintained in their optimum condition. Magnaflux PeneCert™ offers a speedy and convenient testing service for all in-use materials. The benefits include:
- Tailored test frequency to each customer’s requirements.
- Testing which satisfies ASTM, MIL and other industry standards.
How to use PeneCert™
- Get a quote
Contact Magnaflux EMEAR for a price quotation for your PeneCert service.
- Collect samples
For each in-use material to be tested, collect a sample – Magnaflux are able to supply bottles for this purpose. If the material is not manufactured by Magnaflux, please also include a sample of the unused material for use as a testing standard.
- Label bottle(s)
Fill out a label (supplied with our bottles) and attach to the appropriate sample bottle(s). Please ensure that each bottle cap is tightened securely.
- PeneCert menu
Fill out the PeneCert menu form, indicating the testing that you require. You will receive an email containing a copy of your form; print this email and include with your sample(s). If you are sending more than one sample of penetrant, please complete one form per sample.
- Send samples
Send your samples to: Aerotech Laboratories Ltd, (Magnaflux PeneCert), Unit 20, Mercia Business Village, Westwood Business Park, Coventry, CV4 8HX, UK. For convenience, please use the pre-printed address labels supplied with your bottles for labelling your sample package.
We will endeavour to despatch your results within 72 working hours of receiving your samples. If you prefer, we can fax or email your results – please indicate your preference on the PeneCert menu sheet and ensure that we have the appropriate contact details. To obtain further sample bottles please let us know when you send in your menu sheet.
Invoices will be issued from the Magnaflux office in Swindon, UK.
Magnaflux therefore recommends that all users perform regular checks on in-use penetrants to ensure the compliance and conformity both with industry standards and also with internal procedures. Such checks also help to establish the point of performance loss and/or the point where a penetrant might no longer be fit for use.
Causes of contamination include:
Contamination from water is the most common form of contamination. The water can come from pre-washed parts that are not fully dried, careless rinsing or from leakage from pipes. Water contamination is not generally a risk until the point where the water tolerance of the penetrant is met.
- Dirt and insoluble solids
Dirt and insoluble solid contamination can result from poor cleaning or allowing contaminant materials to fall into the tank.
- Organic material
Oils, lubricants, paints, greases, organic solvents, cleaning solvents and degreasing fluid are all sources of organic material contamination. Whilst penetrants are able to absorb amounts of oils and solvents, their level of fluorescence will be decreased and the penetrant washability will also be affected.
- Alkaline cleaners and acids
Alkaline cleaners and acids represent the most serious type of contamination as they destroy fluorescence when they come into contact with a penetrant. In addition, some alkaline cleaners contain metasilicates, which can prevent penetrants from entering and therefore detecting a crack.
Causes of penetrant degradation include:
In some cases heat can be used to speed up the action of a penetrant. However, prolonged exposure to temperatures over 60 °C can reduce the fluorescence of a penetrant. Temperatures in excess of 120 °C will destroy fluorescence completely.
Penetrants stored in open tanks will undergo continuous evaporation, especially if the tanks are large and exposed to warmer temperatures. Evaporation may cause an increase in viscosity, which would subsequently increase the time taken to remove the penetrant.
- Faulty equipment
Un-calibrated or faulty equipment and accessories can compromise penetrant systems. For example, drying oven thermostats or controls that are set improperly set can lead to incorrect oven temperatures. Similarly water pressure gauges can malfunction or the UV output from black light bulbs can be reduced with aged bulbs.
The effects of contamination and degradation will depend on the type and amount present. Any change in colour or consistency should be addressed immediately to ensure consistent inspection results.
|In-Use Penetrant Test Requirements||ASTM E1417|
|Developer Contamination (Soluble and Suspendable)||Daily|
|Developer Concentration (Soluble and Suspendable)||Weekly|
|Developer Condition – Dry Powder||Daily|
|Water Content (Water Washable only)||Monthly|
|Emulsifier concentration (Hydrophilic Only)||Weekly|
|Penetrant Sensitivity||As required per 7.8.3|
|Fluorescent Brightness – Measured Brightness||Quarterly|
|Emulsifier Water Content (Lipophilic only)||Monthly|
|Penetrant Removability (Water Washable only)||As required per 7.8.3|
|Emulsifier Removability (Lipophilic and Hydrophilic)||As required per 7.8.3|
Facilities that do not have the instrumentation or resources to carry out on-site testing can opt to use the Magnaflux PeneCert Service.