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1500502

USP

Particle Count Set

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

Polystyrene microsphere suspensions

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About This Item

NACRES:
NA.24
UNSPSC Code:
41116107
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grade

pharmaceutical primary standard

agency

USP

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.

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grade

pharmaceutical primary standard

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pharmaceutical primary standard

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pharmaceutical primary standard

manufacturer/tradename

USP

manufacturer/tradename

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manufacturer/tradename

USP

manufacturer/tradename

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form

particles

form

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powder

form

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pharmaceutical (small molecule)

application(s)

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USP Biologics
pharmaceutical (small molecule)

application(s)

pharmaceutical (small molecule)

format

neat

format

neat

format

neat

format

neat

storage temp.

2-8°C

storage temp.

-

storage temp.

-

storage temp.

-


Storage Class

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable



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Questions

1–3 of 3 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. I want to know what materials are included in this set. What are the specifications of each part? I want to know the size of the included materials, such as 5 um, 10 um, etc.

    1 answer
    1. This item is a product of the United States Pharmacopeia. The product includes 2 vials containing 25 mL of 15 um polystyrene spheres in aqueous solution and 2 Blank vials containing 28 mL of only the same aqueous solution. For additional details, please see the link below to review the supplier product page:
      https://store.usp.org/product/1500502?_gl=1*rmok7s*_gcl_au*NTc5MTg4NDU3LjE3MzQwMjE2NTU.*_ga*OTU5ODYxMDUwLjE3MzQwMjE2NTU.*_ga_DTGQ04CR27*MTczNDAyMTY1NS4xLjEuMTczNDAyMTY2OC4wLjAuMA..

      Helpful?

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