Skip to Content
Merck
All Photos(1)

Documents

1500502

USP

Particle Count Set

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

Polystyrene microsphere suspensions

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
41116107
NACRES:
NA.24

grade

pharmaceutical primary standard

form

particles

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Particle Count Set USP reference standard intended for use in specified quality tests and assays.

Also used for calibration, recovery studies, and accurate particle counts for reference standards according to United States Pharmacopeia (USP) general chapters:
  • 〈1788.1〉 Light obscuration method for the determination of subvisible particulate matter
  • 〈1788.3〉 Flow imaging method for the determination of subvisible particulate matter
  • 〈1788〉 Methods for the determination of subvisible particulate matter
Additionally, used in a method system suitability evaluation for microscope preparation and for comparative counts between the trainer and the operators.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

related product

Product No.
Description
Pricing

Storage Class Code

10 - Combustible liquids

WGK

WGK 3


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

?1788.2? Membrane microscope method for the determination of subvisible particulate matter
United States Pharmacopeia and National Formulary
United States Pharmacopeia, 46(1) (2021)
?1788? Methods for the determination of subvisible particulate matter
United States Pharmacopeia and National Formulary
United States Pharmacopeia, 46(1) (2021)
?1788.1? Light obscuration method for the determination of subvisible particulate matter
United States Pharmacopeia and National Formulary
United States Pharmacopeia, 46(1) (2021)
?1788.3? Flow imaging method for the determination of subvisible particulate matter
United States Pharmacopeia and National Formulary
United States Pharmacopeia, 46(1) (2021)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service