Standards & References

We supply a host of Standards & References for Particle Characterisation

Size Standards
NIST Traceable Size Standards

2000 Series Duke™ Standards Uniform Beads

5 μm – 40 μm

3000 Series Nanosphere Size Beads

20 nm – 900 nm

4000 Series Duke Standards Monosized Beads

1 μm – 160 μm

4000 Series Duke Standards Monosized Beads (Dry)

200 μm – 1000 μm

8000 Series Nanosphere Size Silica Beads

0.5 μm – 1.6 μm

9000 Series Duke Standards Borosilicate Glass (Dry)

2 μm – 2000 μm

ChromoSphere-T™ Certified Size Standards-Red

50 μm – 500 μm

ChromoSphere-T Certified Size Standards-Black

50 μm – 500 μm

Dri-Cal™ Particle Size Standards Beads

5 μm – 100 μm

4D Series Size Standard Beads (Dry)

3 μm – 10 μm

SURF-Cal

Surf-Cal™ Particle Size Standards Beads

0.047 μm – 3.04 μm

Surf-Cal Particle Size Standards Beads

0.047 μm–1.112 μm

Count Controls
Count Controls

3K Series Duke Standards

0.1 μm – 1.6 μm

4K Series Duke Standards

2 μm – 100 μm

Pharm-Trol™ Count Precision Standards

15 μm

Validex™ Count Precision Standards

5 μm

Validex Count Precision Standards

10 μm 

Count-Cal™ Count Precision Standards

2 μm – 70 μm

Ezy-Cal™ Particle Size Standards

2 μm – 70 μm

Flow Cytometry Beads
Cyto-Cal™ Flow Cytometry Beads

488 Alignment Beads (Orange)

3 μm

Alignment Beads (Red)

3 μm

Cyto-Plex™ Flow Cytometry Beads

Red

4 μm – 5 μm

Dyed Beads
Color-Rich™ Dyed Carboxylate-Modified Beads

Blue

0.85 μm – 0.4 μm

Red

0.4 μm

Black

0.4 μm

ChromoSphere™ Beads (Dry)

Red

50 μm – 500 μm

Black

50 μm – 500 μm

Fluorescent Beads
Fluoro-Max™ Europium Chelate Carboxylate Modified Beads

Excitation: 333 nm, Emission: 615 nm

0.1 μm - 0.3 μm

Fluoro-Max Europium Chelate Streptavidin- Coated Beads

Bead: Green, Excitation: 443, Emission: 510

~ 25 nm – 900 nm

~1 μm – 10 μm

Bead: Red, Excitation: 542, Emission: 612

~ 25 nm – 900 nm

~1 μm – 3 μm

Bead: Blue, Excitation: 365/388/412, Emission: 447/473

~ 50 nm – 900 nm

~1 μm – 2 μm

Fluoro-Max Green and Red Beads Dry

Green

~5 μm – 160 μm

Red

~5 μm – 160 μm

Undyed Diagnostic Beads
Opti-Link™ Carboxylate-Modified Beads


0.04 μm  5 μm

Opti-Bind™ Sulfate Beads


0.1 μm  2.5 μm

Power-Bind™ Streptavidin- Coated Beads


0.3 μm  0.85 μm

Specialty Beads
5000 Series Polymer Bead Suspensions


0.03 μm – 3.2 μm

7000 Series Polymer Bead Suspensions


3.2 μm – 222 μm