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  5. Thermo Scientific™ Ezy-Cal™ Count Precision Size Standards

Thermo Scientific™ Ezy-Cal™ Count Precision Size Standards

Catalog No. p-4530438
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Diameter (Metric):
10.00 ±0.08 μm
15.02 ±0.15 μm
2 μm
20 μm
25 μm
30 μm
5 μm
50 μm
70 μm
This item is not returnable. View return policy
This item is not returnable. View return policy

Description

Meet the unique and demanding requirements of the contamination control laboratory in modern industries.

Meet the unique and demanding requirements of the contamination control laboratory in modern industries with Thermo Scientific™ Ezy-Cal™ Count Precision Size Standards, easy-to-use liquid particle count controls at 2000 particles per mL. Designed for regular use in liquid particle counters to verify instrument calibration before each use, standards assure reproducibility of the particle counter by permitting a continuous record of its performance using a NIST™-traceable microsphere suspension with a precise concentration.

Features:
  • Ready-to-use (no dilution required) particle size standard for validating optical particle counters
  • Magnetic stir bar included in each bottle for clean, convenient and direct sampling
  • Aqueous suspension medium contains a combination of dispersing agents to keep particles from clumping or sticking to flow surfaces in the particle counter
  • Particle diameters traceable to the Standard Meter through the National Institute of Standards and Technology

Recommended for:

Checking the calibration of liquid particle counters.

TRUSTED_SUSTAINABILITY

Specifications

Additive Contains trace amount of surfactant
Concentration 2000 particles/mL ± 10%
Content And Storage Unless otherwise stated, refrigerate (2° to 8°C) product when not in use but do not freeze. Store upright and keep bottle tightly sealed. Mix product with gentle inversion by hand or vortex mixer. Product comes with stir bar for continual mixing duriong sampling.
Contents Polystyrene microspheres in water
Description Used for validating the performance of liquid particle counters
Color White or Colorless
For Use With (Application) Liquid Particle Counter Calibration
Material Polystyrene
Product Type Count Control Particles
Includes Certificate of Calibration and Traceability to NIST
Particle Density 1.05g/cm3
Quantity 100 mL
Refractive Index 1.59 at 589nm (25°C)
Size Distribution s = 0.022µm, 1.1% CV
Stability Product stable for a minimum of three months
Diameter (Metric) 2 μm
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