Polydisperse Particle Standards - Nominal Size Range:

500 - 2000 microns
Detailed review-results by weight/volume

The 500-2000μm standard was not part of the original range of ‘Mirror’ standards but was requested later by some laser particle size manufacturers who specialized in large particle size analysis.  The data below was referenced against the NIST calibrated stage reference graticule.
 

Table of Results 

 Percentile

Method

Test

 1 5 10 25 50 75 90 95

(7g samples)

 1 521 621 687 853 1007 1242 1518 1665
2 524 624 696 856 1022 1251 1527

1681

3 524 624 690 853 1004 1226 1487 1653
4 527 627 696 856 1013 1254 1518 1665
5 524 624 690 850 1010 1245 1537 1687
6 524 624 690 856 1016 1233 1515 1668
7 527 627 693 850 1007 1236 1527 1681
8 524 624

693

853 1007 1236 1518

1700

9 524 624 693 853 1010 1254 1552 1690
10 524 624 693 859 1019 1254 1537

1684

11

526

 619 692 850

1013

1259 1558 1699
12 526

619

686

850 1007

1259

1564 1721
13 526 623 692 856 1017 1268 1555 1699
14 526 620

689

847

1007 1237 1542

1687
15 526 623 692

853

1010 1259 1558 1718

Final Mean size

x(n=15)

524

623

691

853

1011

1248

1534

1687

SD(sample)

xsn-1

1.6

2.5

2.9

3.9

5.2

12

21

19

Uncertainty

95% confidence

3.2

4.9

5.7

7.8

11

24

48

38

 
Graphical Review
 - Individual Analyses