Filter Testing
Services

Filter Cut Point Testing

Our most popular test is our Filter Cut Point or 'Challenge Test'. Performed dry, glass microspheres are fluidised by a Sonic sifting action, challenging the filter to provide the d97%.

Our Requirements:
Samples must have an estimated cut point of between 20 and 600 microns.  We require 90mm flat circular discs in order to perform the test (if possible, please send 2 samples per test.  This is simply to ensure a good set up)

Please label your samples clearly - Whatever you label your samples with will be referenced on your certificate. Ideally send your samples sealed in a labelled plastic bag.  Also, if possible, please indicate an estimated nominal pore size for each sample.

Results are returned as a PDF NIST Traceable Certificate via email within 5 days of our receiving your samples.

Charging and Expansion

The first rule of any technology used in a business is that automation applied to an efficient operation will magnify the efficiency. The second is that automation applied to an inefficient operation will magnify the inefficiency.

Video Support

Engineering or technology is all about using the power of science to make life better for people, to reduce cost, to improve comfort, to improve productivity, etc.

Operating Requirements

Technology is nothing. What's important is that you have a faith in people, that they're basically good and smart, and if you give them tools, they'll do wonderful things with them.

For a small additional fee, an Express Service is available which will ensure we drop everything to test your samples! The Express Service will ensure your results are returned within 1-2 days.

FILTER TESTING (2020)

FILTER THICKNESS MEASUREMENT
NIST traceable – with Test Certificate
£95
AIR PERMEABILITY
Textest with Test Certificate
£100
DIRECT MEASUREMENT BY IMAGE ANALYSIS
Measured by PoreSizerTM using transmitted light.
Size range 2 – 2000microns
NIST traceable Test Certificate supplied
£195
FILTER CUT-POINT (DRY CHALLENGE TEST) MEASUREMENT
Glass reference microspheres fluidised by Sonic sifting action over the filter
Gravimetric interpolation method equates to the d97% cut point
Size range 20 – 1000 microns
NIST traceable Test Certificate supplied
£275
MAXIMUM PORE SIZE BY PENETRATING GLASS MICROSPHERES
An aqueous suspension of glass reference microspheres are fluidised byultrasonic action over the filter. Dry Sonic action may be used for larger pore sizesPenetrating particles are analysed by the PoreSizerTM Image Analyser
Maximum pore size is measured at d99.5, measurement uncertainty >7%
Size range 2 – 500 microns,
NIST traceable Test Certificate supplied
£450
SAND SCREENS. MAXIMUM PASSING PARTICLE
Based on Annex D of ANSI/API Specification 19S and ISO 17824
Glass reference microspheres are fluidised by Sonic sifting action over 5 x 90mmdiameter discs. At least 5000 beads passing through each disc are countedand the largest particle passing (d100) measured by microscopy (PoreSizerTM)
The largest particle from the 5 tests is recorded along with the calculated
Measurement Uncertainty.
NIST traceable Test Certificate supplied
£550
FILTER WATER FLOW RATES: AQUAPORETM
Glass reference microspheres are fluidised by Sonic sifting action over 5 x 90mmdiameter discs. At least 5000 beads passing through each disc are countedand the largest particle passing (d100) measured by microscopy (PoreSizerTM)
The largest particle from the 5 tests is recorded along with the calculated
Measurement Uncertainty
.NIST traceable Test Certificate supplied
£450
ISO17025 compliant

Customer Testimonials

I am always completely satified with the service and relationship.

It is always a pleasure working with you all.

R K - USA

I am really happy with the prompness and quality.

Good Job.

A S - UK

I called Whitehouse Scientific directly from the USA and I got my standards in 2 days at the price I was quoted.

Fantastic Service!

M.D USA

We are always satified with your business.

Y.K Japan

I am really happy with the prompness and quality.

Good Job.

A S - UK

I called Whitehouse Scientific directly from the USA and I got my standards in 2 days at the price I was quoted.

Fantastic Service!

M.D USA

We are always satified with your business.

Y.K Japan

I called Whitehouse Scientific directly from the USA and I got my standards in 2 days at the price I was quoted.

Fantastic Service!

M.D USA

We are always satified with your business.

Y.K Japan

We are always satified with your business.

Y.K Japan