Particle-Size Standards

Particle-size standards are certified for mean diameter and are traceable to the National Bureau of Standards (NBS). Duke Scientific's new line of standards in the submicrometer size range is called Nanosphere Size Standards™, and Monosized Polymer Microspheres.

  • Nanosphere Size Standards are highly uniform polystyrene spheres calibrated in billionths of a meter (nanometer) with NBS traceable methodology.
  • Nanosphere Size Standards are used in the calibration of electron microscopes, aerosol and liquid particle studies, chromatography columns, and laser light scattering studies. The 20 to 1000 nm range is suitable for checking the size of bacteria, viruses, ribosomes and sub-cellular components. Nanosphere Size Standards are packaged as aqueous suspensions in dropper-tipped bottles.

Specific gravity: 1.05 g/ml R
Refractive index of 1.58 @ 589 nm (25°C).

TM Trademark of Duke Scientific Corp.

Nanosphere Size Standards Ordering Information:

Cat# Nominal
Diameter
Certified
Mean Dia.
Size Uniformity
Std. Dev.&C.V
Solids
Content
70881 20 nm 19 nm+/-1.5 nm NA 1%
70883 50 nm 50 nm+/-2.0 nm NA 1%
70885 100 nm 102 nm+/-3.0 nm 7.6 nm (7.5%) 1%
70886 200 nm 204 nm+/-3.1 nm 3.1 nm (1.5%) 1%
70887 300 nm 304 nm+/-6.0 nm 4.5 nm (1.5%) 1%
70888 400 nm 404 nm+/-4.0 nm 5.9 nm (1.5%) 1%
70889 500 nm 486 nm+/-5.0 nm 5.4 nm (1.1%) 1%
70890 600 nm 600 nm+/-5.0 nm 6.6 nm (1.1%) 1%
70891 700 nm 701 nm+/-6.0 nm 9.0 nm (1.3%) 1%
70892 800 nm 802 nm+/-6.0 nm 9.6 nm (1.2%) 1%
70893 900 nm 895 nm+/-8.0 nm 9.1 nm (1.0%) 1%
Cat # Description MSDS Pack Price Quote Quantity
Cat #: 70881 Description: 20nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70883 Description: 50nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70885 Description: 100nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70886 Description: 200nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70887 Description: 300nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70888 Description: 400nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70889 Description: 500nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70890 Description: 600nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70891 Description: 700nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70892 Description: 800nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70893 Description: 900nm NANOSPHERE SIZE STANDARD Pack: 15 mL Price: $413.00 Add to Quote:
Cat #: 70894 Description: 1.0um MICROSPHERE SIZE STANDARD Pack: 15 mL Price: $497.00 Add to Quote:
Cat #: 70895 Description: 2.0um MICROSPHERE SIZE STANDARD Pack: 15 mL Price: $497.00 Add to Quote:
Cat #: 70896 Description: 3.0um MICROSPHERE SIZE STANDARD Pack: 15 mL Price: $497.00 Add to Quote:
Cat #: 70897 Description: 5.0um MICROSPHERE SIZE STANDARD Pack: 15 mL Price: $497.00 Add to Quote:
Cat #: 70898 Description: 10.0um MICROSPHERE SIZE STANDARD Pack: 15 mL Price: $497.00 Add to Quote: