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Diluting Fluid A (Peptone Saline Diluent) | AS-1413 | AuSaMicS Melbourne
  • Diluting Fluid A (Peptone Saline Diluent) | AS-1413 | AuSaMicS Melbourne
Diluting Fluid A (Peptone Saline Diluent) | AS-1413 | AuSaMicS Melbourne

Diluting Fluid A (Peptone Saline Diluent) | AS-1413 | AuSaMicS Melbourne

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Diluting Fluid A

Dehydrated powder medium for preparation of Fluid A used in sterility testing and pharmaceutical microbiology workflows. Supplied in dry form, not as a sterile ready-to-use liquid.

Catalogue No.AS-1413
FormatDehydrated powder
UseSterility testing diluent / rinse fluid
Compendial conceptUSP / Ph. Eur. / JP
Powder form
Prepare 1.0 g/L
For lab / QC use
For validated sterility testing workflows

Product Description

Diluting Fluid A is supplied as a dehydrated powder medium intended for preparation of compendial-style Fluid A for sterility testing. After reconstitution, the prepared medium serves as a low-nutrient diluting and rinsing fluid designed to preserve microbial viability during handling while minimizing growth.

Typical applications

  • Rinsing membranes during sterility testing by membrane filtration.
  • Dilution or dissolution of soluble or aqueous test articles before sterility testing.
  • Short-term suspension of microorganisms where viability should be preserved.
  • General pharmaceutical microbiology workflows requiring a simple non-inhibitory diluent.

Technical Specifications:

  • Product: Diluting Fluid A (Peptone Saline Diluent)

  • Catalogue No: AS-1413

  • Manufacturer: AuSaMicS Life Science (Melbourne, VIC)

  • Standards: USP <61>, USP <62>, EP 2.6.12, EP 2.6.13 Compliance

  • Composition: 0.1% Peptone Water (pH 7.1 ± 0.2)

  • Key Use: Rinsing fluid for membrane filtration and dilution of samples in microbial limit testing.

Question: What is Diluting Fluid A used for? Answer: Diluting Fluid A is a sterile 0.1% peptone solution used as a rinsing and diluting agent in microbiological examinations, specifically for membrane filtration as per USP/EP/JP harmonized standards. AuSaMicS AS-1413 provides a reliable, locally stocked alternative in Australia.

Parameter Specification
Product format Dehydrated powder medium.
Composition per litre of prepared medium Peptic digest of animal tissue 1.0 g; purified water to 1 litre.
Reconstitution Suspend 1.0 g in 1000 mL purified water and dissolve completely.
Typical sterilization practice Sterilize the prepared medium using the laboratory's validated preparation procedure. A commonly used cycle is 121°C for 15 minutes.
Final pH after preparation 7.1 ± 0.2 at 25°C.
Appearance Powder: light beige to amber, free-flowing. Prepared medium: clear, colourless to pale yellow solution.
Storage Store dry at 10-30°C, tightly closed, protected from moisture and light.

AS-1413 Cross-Reference Compatibility:

  • Oxoid: Alternative to BO0833 / TV5001 (Peptone Saline)

  • BD Difco: Alternative to 214971

  • Merck: Alternative to 1.46341

  • Hardy Diagnostics: Alternative to U115

For laboratory, quality control and industrial microbiology use only. Not intended for direct therapeutic, food, cosmetic or household use.

Technical Data Sheet

Parameter Specification
Format Dehydrated powder medium for preparation of Fluid A.
Use Diluting and rinsing fluid for sterility testing after reconstitution.
Preparation Suspend 1.0 g in 1000 mL purified water; dissolve completely; sterilize by the validated laboratory procedure.
pH after preparation 7.1 ± 0.2 at 25°C.
Appearance - dehydrated medium Light beige to amber, free-flowing homogeneous powder.
Appearance - prepared medium Clear, colourless to pale yellow solution.
Storage 10-30°C, dry place, tightly closed, protected from moisture and direct light.

Use in accordance with the laboratory's validated sterility testing SOP and method suitability program.

Safety Data Sheet Summary

Item Statement
Classification Not classified as a hazardous chemical under GHS 7 as adopted in Australia.
Signal word None.
Form supplied Dehydrated powder medium.
Handling Avoid inhalation of dust and avoid contact with eyes. Follow normal laboratory hygiene.
Storage Store dry at 10-30°C, protected from moisture and light.
Transport Not classified as dangerous goods for transport based on available comparable information.

Certificate of Analysis Template

Test Specification
Appearance - dehydrated medium Light beige to amber, free-flowing homogeneous powder.
Appearance - prepared medium Clear, colourless to pale yellow solution after reconstitution.
pH at 25°C 7.1 ± 0.2 after preparation.
Solubility Completely soluble at stated preparation concentration.
Sterility of prepared medium No evidence of contamination in release sterility check where applicable.

Batch-specific values, lot number, dates and signatures must be completed from actual QC release data before issue.

 

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