This is a general-purpose neutralising diluent used particularly in the pharmaceutical industry.
Lecithin, L-histidine and Tween 80 are present to inactivate surface disinfectants such as quaternary ammonium compounds, phenols, aldehydes (including formaldehyde), hexachlorophene and ethanol.
The diluent may be used in sampling surfaces and equipment (including endoscopes) to detect the presence of surviving microorganisms after disinfection.
The presence of the surfactant Tween 80 also helps release adherent organisms from surfaces being tested.
Neutralising Pharmaceutical Diluent (NPD)
Additional Information
| Container | |
|---|---|
| Volume | |
| Shelf Life (days) | |
| Storage Temp (°C) | |
| Appearance | Liquid |
| Colour | |
| pH | |
| Recommended Incubation | Incubate aerobically at 20 ± 5°C for 45 ± 5 minutes. Before and after counts checked. |
Product Description
| Organisms | Ref. No | Result |
| Escherichia coli | ATCC 8739 | Stable viability |
| Staphylococcus aureus | ATCC 6538 | Stable viability |
| Pseudomonas aeruginosa | ATCC 9027 | Stable viability |
| Candida albicans | ATCC 10231 | Stable viability |
| Bacillus subtilis | ATCC 6633 | Stable viability |
Recommended incubation: Incubate aerobically at 20 ± 5°C for 45 ± 5 minutes. Before and after counts checked.
