In This Issue:

1. Cover           – Australian Owned & Australian Made ~ Smartchem

2. News            – From the Sales Desk  –    

                             = New FEREX – API Model 4.035

                                                  =  Karl Deutsch – MPI Test & Reference Blocks

3. Special         – 30% OFF Econoscope, NDT Borescope

4. Application  – Analysis of Precious Metals by Velocity

Australian Owned & Made – from Australian Sourced Ingredients

UPGRADE your Dye Pen and MPI products

to Smartchem

Contact us for a Pricing or SDS

Like more Information – 02 8850 3755

Karl Deutsch, MPI Test & Reference Blocks

Test and Reference blocks

for Magnetic Particle Testing

For magnetic particle testing many reference
blocks are offered by Karl Deutsch, to comply
with various German and international standards.

Like more Information – 02 8850 3755

An important task is the unambiguous determination of the authenticity of the precious metals. This unusual NDT task can be handled with the ECHOMETER simply and easily.

From time to time falsified coins and bars appear on the market. The precious metal is being replaced by materials with a similar density and then covered by a thin layer of the precious metal. An authentication by measuring the density would fail in this case. Also XRF measurement has limitations in this application with a very low depth of penetration, especially for Au at around only 10µm. The measurement of the sound velocity is a far better approach.

Gold and silver have very different sound velocities compared with the materials used for their replacement. After entering the ECHOMETER  with the measured thickness of the material you can easily measure the sound velocity. The measurement is carried out with the aid of the probe DSE 4.2/4 PB 8 which covers a measuring range from 0.7 mm to 25 mm (in steel). Due to its small contact area, it is also possible to use it for coins with strong curvatures. The miniature probe is coupled on small flat surfaces. This figure shows the measurement of sound velocity of an Australian silver dollar. The coin with a thickness of 12.30 mm shows a measured sound velocity of 3605 m/s. This is a typical value for this grade silver.

KK&S Instruments have for many years provided the Echometer for this purpose.

Have any questions or like further details?;

contact us now !

Ph 02 88503755 or Email