Description
Ezy-Cal Polystyrene Monosized Particles Count Precision Standards are ready-to-use uniform polystyrene microsphere suspensions designed for validating liquid particle counters. Each 100 mL bottle includes a magnetic stir bar for resuspension, enabling clean, convenient, and direct instrument sampling. The aqueous suspension medium contains dispersing agents to prevent particle clumping or sticking to flow surfaces.
Particle diameters are traceable to the Standard Meter through NIST. These count controls are ideal for setting or checking calibration of channel thresholds and verifying count precision of liquid borne particle counters.
Specifications:
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- Composition: Polystyrene
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- Density: 1.05 g/cm³
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- Index of Refraction: 1.59 @ 589 nm (25°C)
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- Additives: Contains trace amount of surfactant
Part Number |
Bottle Size |
Count/mL |
Particle Diameter |
Price per 100 mL Bottle |
| AP-6002 | 100 mL | 2000/mL ± 10% | 2 µm |
$ 320.00 |
| AP-6005 | 100 mL | 2000/mL ± 10% | 5 µm |
$ 320.00 |
| AP-6010 | 100 mL | 2000/mL ± 10% | 10 µm |
$ 320.00 |
| AP-6015 | 100 mL | 2000/mL ± 10% | 15 µm |
$ 320.00 |
| AP-6020 | 100 mL | 2000/mL ± 10% | 20 µm |
$ 320.00 |
| AP-6025 | 100 mL | 2000/mL ± 10% | 25 µm |
$ 320.00 |
| AP-6030 | 100 mL | 2000/mL ± 10% | 30 µm |
$ 320.00 |
| AP-6050 | 100 mL | 2000/mL ± 10% | 50 µm |
$ 320.00 |
| AP-6070 | 100 mL | 2000/mL ± 10% | 70 µm |
$ 320.00 |






