Glass Beads for Sieve Calibration

Impact offers two ranges of glass beads

Calibration Beads - for accurate sieve calibration in a matter of minutes
Calibration Check Beads - used with a set of master sieves for performance checks

Glass Calibration Beads

Supplied in sets of 5 single shot bottles, each shot is suitable for one calibration test, thereby avoiding operator error. These provide a quick and economical method of calibrating sieves.

These Sieve Calibration Beads are manufactured from soda-lime glass and certified using NIST & NPL traceable electroformed sieves. They are accurate to 1 micron for the smaller aperture sieves and are supplied with a certificate of analysis.

Part No (5 shots)	To Calibrate Sieve Size/s	Weight per Shot	Part No (5 shots)	To Calibrate Sieve Size/s	Weight per Shot
SZ660	20µm	0.8g	SZ675	300µm, 315µm	2.5g
SZ661	25µm	0.8g	SZ676	355µm	2.5g
SZ662	32µm	1g	SZ677	400µm, 425µm, 450µm	2.5g
SZ663	36µm, 38µm, 40µm	1g	SZ678	500µm	2.5g
SZ664	45µm, 50µm	1g	SZ679	560µm, 600µm, 630µm	2.5g
SZ665	53µm, 56µm	1g	SZ680	710µm	2.5g
SZ666	63µm	1g	SZ681	800µm, 850µm, 900µm	2.5g
SZ667	71µm, 75µm, 80µm	1g	SZ682	1mm	7g
SZ668	90µm	1g	SZ683	1.12mm, 1.18mm, 1.25mm	10g
SZ669	100µm, 106µm, 112µm	1g	SZ684	1.40mm	15g
SZ670	125µm	1.5g	SZ685	1.60mm, 1.70mm, 1.80mm	15g
SZ671	140µm, 150µm, 160µm	1.5g	SZ686	2.00mm	20g
SZ672	180µm	1.5g	SZ687	2.24mm, 2.36mm, 2.50mm	20g
SZ673	200µm, 212µm, 224µm	1.5g	SZ688	2.80mm, 3.15mm	25g
SZ674	250µm, 280µm	2.5g	SZ689	3.35mm, 3.55mm	25g

Glass Calibration Check Beads

Supplied in 1kg packs

These beads are to be used for performance checks, together with a set of master sieves.

Part Number	Bead Ø	Part Number	Bead Ø
SV100	0.0 to 0.050mm	SV136	2.850 to 3.300mm
SV102	0.040 to 0.070mm	SV138	3.300 to 3.600mm
SV104	0.070 to 0.110mm	SV140	2.0mm +/ - 0.1mm
SV106	0.090 to 0.150mm	SV142	3.1mm +/- 0.1mm
SV108	0.100 to 0.200mm	SV144	4.0mm +/ - 0.3mm
SV110	0.150 to 0.250mm	SV146	4.5mm +/ - 0.3mm
SV112	0.200 to 0.300mm	SV148	5.0mm +/ - 0.3mm
SV114	0.250 to 0.500mm	SV150	6.0mm +/ - 0.3mm
SV116	0.400 to 0.600mm	SV152	7.0mm +/ - 0.3mm
SV118	0.500 to 0.750mm	SV154	8.0mm +/ - 0.4mm
SV120	0.750 to 1.000mm	SV156	9.0mm +/ - 0.4mm
SV122	1.000 to 1.250mm	SV158	10.0mm +/ - 0.5mm
SV124	1.250 to 1.550mm	SV160	11.0mm +/ - 0.5mm
SV126	1.550 to 1.850mm	SV162	12.0mm +/ - 0.5mm
SV128	1.700 to 2.000mm	SV164	14.0mm +/ - 0.5mm
SV130	2.000 to 2.400mm	SV166	16.0mm +/ - 0.5mm
SV134	2.400 to 2.900mm