SieveMatic is compact being 340mm (w) × 330mm (d) × 230mm (h) and weighs in at 16kg. As a mechanical screenings device, SieveMatic ticks all the boxes in relation to the reference methods as laid down by GTA for wheat and barley (which is also applied to other cereals and can be by default, pulses). Namely:
- 40 shakes in 68 seconds for wheat with the option of 20 shakes (where applicable) for barley;
- Utilises the same mechanical action as the reference instrument;
- Accommodates all 300mm sieve pans; and
- Provides results that are statistically indistinguishable from the current reference method.
Internal company trials of SieveMatic show results which correlate highly with the current GTA reference method. The actual method to validate SieveMatic used a set of wheat samples covering a screenings range from below 2% to in excess of 16%. Results were measured multiple times on Agtator equipped with a certified 2.00mm sieve and then on SieveMatic with the same samples and certified sieve. The vertical error bars on the graphical representation of the trial results show a small spread around the mean SieveMatic result. This observation is confirmed by the smaller co-efficient of variation for the SieveMatic results when compared to those of the reference method. Independent verification of this relationship between the two methods is currently being undertaken.
Provided below is a graphical representation of a series of trials running SieveMatic in parallel with the current reference GTA method. From the tabulated results a clear statistically significant correlation exists between the reference method and SieveMatic with no discernible bias.
Internationally, SieveMatic also has the potential to be utilised within GAFTA & FGIS frameworks for methods requiring hand or mechanical sieving.