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Controls, Standards and Accessories

A full range of controls and standards are available for use with all particle characterization instruments. A wide range of NIST traceable calibration standards designed for use with COULTER COUNTERS® may be used to validate the performance of any liquid borne particle analyzers. Controls are provided with assay sheets for confirming the performance of Coulter Instruments and their regular use is recommended.

Particle Size Controls

Particle Size Controls are samples used for the verification of instrument performance and are specifically intended for use with a particular model or models of particle size analyzers. The function of a control is to verify whether an instrument is performing to specification. Normally, a specific part of the instrument's measurement range is tested with a sample of similar size to the samples of interest. The instrument performance is thereby verified at sizes of particular interest. Several control samples are usually needed to cover the entire analysis range of the instrument. Control samples include an assay sheet defining the expected range of acceptable values and also specifying any special conditions which are required for analysis of the sample.

LS Series Controls
N4 Series Controls
DELSA Series Mobility and Size Control
SA 3100 BET Surface Area Control
Cell Controls and Reagents for Multisizer, Z1 and Z2 Series

Particle Size Standards

Particle Size and other Standards are samples with assayed values which are traceable to the National Institute of Standards (NIST), Community Bureau of Reference (BCR), or other standards Institute or Organization. Standard samples include an assay sheet of the traceable assay value and its uncertainty, and a certificate of calibration and traceability. These samples can be used to verify the performance of an instrument, if traceability is required. In addition, size standards are available for the purposes of calibrating the COULTER COUNTER^® Instruments. These standards have a concentration of particles suitable for use with Electrical Sensing Zone instruments. They may be used to calibrate other instruments provided the particle concentration is sufficient.

COULTER COUNTER^® Calibration Standards

Accessories

The Z1, Z2 and Multisizer series have reagents and accessories designed for use with these instruments:

ISOTON^® II -- an electrolyte solution

cleaning fluid, particle dispersing agents, and lytic agent

ACCUVETTES^®

In addition, spare parts such as aperture tubes and other glassware for all Coulter Instruments, stirrer bars or O-rings are always readily available. E-mail or call 1-800-523-3713 for details.

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