Callington · NDT & Inspection Equipment
Callington CalCheck F-MAG is a fluorescent magnetic particle suspension that produces yellow-green indications under ultraviolet light, with 2.0–5.0 µm particles in a refined light petroleum distillate, achieving SAE sensitivity of 7 holes and compliant with ASTM E1444, ASTM E709, AMS 2641 and ISO 9934-2.
Price on request. Supplied from Abu Dhabi across the UAE and GCC — quotations include confirmed lead time and delivery terms.
Where it is used
Features
F-MAG achieves 7 holes on the SAE ring test, against 6 holes for the black B-MAG. That one step is the practical reason to accept the cost of a darkened area and a UV lamp: it resolves finer and deeper-lying discontinuities than a visible-light method will.
The particles are brown in daylight and fluoresce yellow-green under ultraviolet light. Yellow-green sits at the peak of dark-adapted human eye sensitivity, which is why every fluorescent NDT system in use converges on that colour.
A low background colour keeps the unindicated surface dark under UV, so an indication reads as a bright line against black. Contrast, not brightness alone, is what makes a fine crack detectable.
Particles are easily agitated and fast acting, producing defined indications quickly and accurately. Consistent re-dispersion matters across a long inspection run, where settled particles would make later parts less sensitive than earlier ones.
Suitable for both stationary magnetic test benches and portable equipment, so the same aerosol serves a dedicated inspection bay and a site yoke inspection.
Complies with ASME Boiler and Pressure Vessel Code Section V, AMS 2641, AMS 3044, AMS 3045, AMS 3046, ASTM E1444, ASTM E3024, ASTM E709 and ISO 9934-2 — covering both the aerospace and pressure equipment specification families.
Technical data
Published manufacturer specifications. Where a figure affects your welding procedure, confirm it against the instruction manual for your specific configuration.
| Colour | Brown |
|---|---|
| Fluorescence | Yellow / green under ultraviolet light |
| Particle concentration | Bulk 0.1–0.4 ml; aerosol 0.15–0.3 ml |
| Particle size | 2.0–5.0 µm, average 3.0 µm |
| SAE sensitivity | 7 holes |
| Suspension fluid | Clear highly refined light petroleum distillate |
| Viscosity | <3 cSt ± 5% (ASTM D445 at 38 °C / 100 °F) |
| Flash point | >93 °C (>200 °F) |
| ASME Boiler and Pressure Vessel Code Section V | Compliant |
|---|---|
| AMS 2641 | Compliant |
| AMS 3044 | Compliant |
| AMS 3045 | Compliant |
| AMS 3046 | Compliant |
| ASTM E1444 | Compliant |
| ASTM E3024 | Compliant |
| ASTM E709 | Compliant |
| ISO 9934-2 | Compliant |
| Packaging | 400 ml aerosol |
|---|---|
| Storage | Protect from sunlight. Do not expose above 50 °C / 122 °F. |
| Batch traceability | Batch numbers on the bottom of aerosol cans or on bulk container labels. Certificate of Conformance supplied with the product. |
| Hazard | DANGER. Extremely flammable aerosol. Pressurised container: may burst if heated. May be fatal if swallowed and enters airways. |
|---|---|
| Precautions | Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Do not spray on an open flame or other ignition source. Do not pierce or burn, even after use. |
| Disposal | Dispose of contents and container in accordance with local regulation. |
Ordering information
Quote these part numbers on your enquiry or LPO to guarantee the exact configuration. If you are unsure which variant suits your application, send us the joint details and we will specify it.
| Description | Part number |
|---|---|
| CalCheck F-MAG fluorescent magnetic particle suspension, 400 ml aerosol | 1566/400 |
| Description | Part number |
|---|---|
| CalCheck B-MAG Black Magnetic Particle, 400 ml aerosol — visible-light alternative | 1567/400 |
| CalCheck WCP White Contrast Paint, 400 ml aerosol — for B-MAG, NOT for F-MAG | 1568/400 |
Operating essentials
Clean the test surface and allow it to dry. No contrast paint is applied for a fluorescent inspection — the method depends on a dark background under UV, which a white coating would destroy.
The longer F-MAG is stirred or agitated, the more uniform the spray. Apply a liberal coating to the inspection area so there is sufficient magnetic particle to flow over the surface, then allow the excess fluid to run off.
Inspect the surface under ultraviolet light. Collections of fluorescent magnetic particles reveal discontinuities at the leakage fields, appearing yellow-green against a dark background. Allow time for dark adaptation before interpreting — reading too soon is a common cause of missed indications.
Clean and repeat the process with the magnetising direction changed. A discontinuity lying parallel to the field produces little or no leakage field, so a single orientation is never a complete inspection.
These directions describe the basic process only. They may need to be amended by the user to comply with the applicable specification and inspection criteria provided by the contracting agency. Where this sheet and your approved written procedure differ, the written procedure governs.
Downloads
Need the instruction manual or spare parts list for this machine? Request it from weldiv@pofis.ae and we will send the current revision.
Frequently asked
F-MAG is more sensitive — SAE 7 holes against 6 — but it requires ultraviolet light and a darkened inspection area. B-MAG is read in ordinary light over white contrast paint and suits site and daylight work. If your procedure specifies a fluorescent method, or calls up ASTM E1444 or the AMS 3044–3046 family, use F-MAG.
No, and you should not use it. Contrast paint provides a white background so black particles are visible in daylight. A fluorescent method needs a dark background under UV, so a white coating works against it. WCP is for B-MAG only.
Yellow-green under ultraviolet light. The particles themselves are brown in ordinary daylight. Yellow-green is used because it sits at the peak sensitivity of the dark-adapted human eye.
ASME Boiler and Pressure Vessel Code Section V, AMS 2641, AMS 3044, AMS 3045, AMS 3046, ASTM E1444, ASTM E3024, ASTM E709 and ISO 9934-2.
2.0 to 5.0 µm with an average of 3.0 µm, in a clear highly refined light petroleum distillate with viscosity below 3 cSt at 38 °C. Aerosol particle concentration is 0.15 to 0.3 ml.
Yes — it works with both stationary magnetic test benches and portable equipment such as yokes and prods, provided the inspection area can be darkened sufficiently for UV interpretation.
POFIS supplies the Callington CalCheck range from Abu Dhabi across the UAE and GCC. Request a quotation on this page or email weldiv@pofis.ae for price, pack quantities, lead time and Certificate of Conformance.
Procurement & supply
The Callington CalCheck F-MAG Fluorescent Magnetic Particle is supplied from Abu Dhabi by Perfect Oilfield & Industrial Supply LLC across the UAE and GCC. The information below covers what procurement and QA/QC departments normally need before raising a purchase order.
Stock items dispatch from Abu Dhabi within 24–48 hours. Indent items are quoted with a confirmed lead time at the time of offer.
POFIS is an approved ADNOC vendor and is listed on the approved vendor lists (AVL) of major operators and EPC contractors across the GCC. We can complete supplier registration and prequalification documentation on request.
Standard credit terms are available to registered corporate accounts. LPO, LC and advance payment are all accepted.
Delivery across the UAE and the wider GCC. Quotations can be issued on EXW, FOB, CIF or DDP terms to suit your project.
Product is supplied to the manufacturer’s published specification, with a Certificate of Conformance available for every batch.
Technical support on product selection, inspection procedure and resupply from our Abu Dhabi welding division.
Price on request
Send the form and the POFIS welding division replies with pricing, confirmed lead time, delivery terms and availability. Tell us who you are and what the job is, so the reply can be specific to it rather than a catalogue price list.
