Thermo Fisher, 3700A, 3000 Series Nanosphere™ Size Standards

Name: 3000 Series Nanosphere™ Size Standards
Brand: Thermo Fisher
SKU: 3700A

Diameter (Metric): 700 nm, Unit Size: Each, Conveniently check the sizes of bacteria, viruses, ribosomes and sub-cellular components with Thermo Scientific™ 3000 Series Nanosphere™ Size Standards, excellent for use with any application that requires a NIST™ traceable size standard with a very narrow standard deviation. The 20 to 900nm range of spheres is ideal for the calibration of electron and atomic force microscopes. Standards are also used in laser light scattering studies and colloidal sys

Catalog Number: 3700A

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Category

Polymer Standards

TagsCell Analysis Products Microspheres

CollectionsThermo Fisher Cell Analysis Products: Viability, Apoptosis, ROS & Calcium Imaging Assays Thermo Fisher Clinical Analyzers & Instruments for Diagnostic Labs Thermo Fisher General Lab Supplies for Daily Workflows — Nalgene, Nunc, Samco & Matrix

Description

Diameter (Metric): 700 nm
Unit Size: Each
Thermo Scientific™ 3000 Series Nanosphere Size Standards are highly uniform polystyrene spheres calibrated within billionths of a meter (nanometers) with NIST traceable methodology. One nanometer is 0.001 micrometer (μm) or 10 angstroms. Spheres have a density of 1.05 g/cm^3 and an index of refraction of 1.59 at 589nm (25°C).
• Available as uniform polymer spheres in a range of discrete sizes from 20 to 900nm
• Diameters calibrated with linear dimensions transferred from NIST
• Spheres used instead of irregularly shaped particles to minimize response of analytical systems to shape effects
• Standards packaged as aqueous suspensions in 15mL dropper-tipped bottles
• Concentrations optimized for ease of dispersion and colloidal stability
• Packages lot-numbered for convenient technical service and support Includes: Certificate of Calibration and Traceability to NIST, including description of the calibration method and its uncertainty, table of chemical and physical properties, and Material Safety Data Sheet with handling and disposal instructions. Note: Thermo Fisher Scientific has its own engineering, production and metrology facilities for better quality control and response to customer needs. In addition to this line of polymer size standards, we also offer calibration standards in silica and glass materials. Ask our technical service department for information about specific applications or other product needs not listed here.

Specifications

General

Additive	Contains trace amount of surfactant to inhibit agglomeration and promote stability
Concentration	1% solids
Contents	Polymer particles in water
Description	3000 Series Nanosphere Size Standards come in optimized concentrations for easy dispersal and colloidal stability.
Includes	Certificate of Calibration and Traceability to NIST
Particle Density	1.05g/cm³
Quantity	15 mL
Refractive Index	1.59 at 589nm (25°C)
Size Distribution	≤ 1.8%
Stability	Product stable for a minimum of 24 months
Color	White or Colorless
Diameter (Metric)	700 nm
For Use With (Application)	Electron Microscope Calibration
Material	Polystyrene
Product Type	Size Standard Particles
Unit Size	Each

FAQs

Question: What is the nominal particle diameter?

Answer:The nominal diameter is 700 nm.

Question: What is the particle material?

Answer:The particles are polystyrene spheres in an aqueous suspension.

Question: What documentation is included?

Answer:A certificate of calibration and traceability to NIST is included.

Application Note

3000 Series Nanosphere™ Size Standard, 700 nm is used for calibration and verification of particle-sizing methods in electron microscopy, atomic force microscopy, laser light scattering, and colloidal systems research. The standard contains uniform 700 nm polystyrene spheres suspended in water at 1% solids. A narrow size distribution of no more than 1.8% supports reproducible instrument checks, while the regular spherical shape reduces measurement variation caused by irregular particle geometry. The particles have a density of 1.05 g/cm³ and a refractive index of 1.59 at 589 nm and 25 °C. Each 15 mL bottle includes a certificate of calibration and traceability to NIST. A trace amount of surfactant is present to limit agglomeration and maintain colloidal stability. This 700 nm standard provides a convenient reference point for laboratories validating particle-size response across the submicron range or comparing measurements between instruments and methods.

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