Peptone Diluent 0.1%, pH 7.0, 9ml x 24 Glass Vials

This Peptone Diluent 0.1% is a buffered isotonic solution formulated with a low concentration of peptone to preserve the viability of microorganisms during serial dilution and microbiological testing.

Its balanced composition supports accurate enumeration of bacterial populations while preventing osmotic stress that could compromise results.

Appearance & Characteristics

This diluent is a clear, very pale straw-coloured solution with a neutral pH of 7.0 ± 0.2 at 25°C. It provides a stable medium for maintaining organisms under laboratory conditions, ensuring consistent and reproducible performance during analytical procedures.

Performance & Quality Assurance

it is validated for volume accuracy and microbial recovery, with 90% or more of samples expected to fall within ±2% of the specified 9ml volume.

It supports reliable recovery of Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 25923 when tested using Plate Count Agar, confirming its suitability for microbiological quality control.

Packaging & Storage

Supplied in 9ml glass vials, conveniently packaged in sets of 24, the diluent is manufactured in Australia under the MicroMedia brand.

It maintains a shelf life of 18 months when stored between 2°C and 8°C in its original, unopened packaging, ensuring long-term stability and integrity of performance.

Product Features

• Isotonic Composition: Maintains microbial viability during dilution and analysis procedures.
• Low Peptone Concentration: Prevents excessive growth while preserving organism stability.
• Neutral pH Stability: Ensures consistent test conditions and accurate recovery results.
• Volume Accuracy: Provides reliable 9ml fill volume with ±2% tolerance for reproducibility.
• High Organism Recovery: Supports the survival of key bacterial strains during testing.
• Clear Straw Appearance: Allows easy visual inspection for quality verification.
• Durable Glass Vials: Reduce contamination risk and enhance chemical compatibility.
• Temperature Controlled Storage: Maintains product quality when stored between 2°C and 8°C.
• Australian Manufactured: Ensures compliance with local quality and manufacturing standards.