McFarland BSS 0.5

McFarland BSS 0.5 for microbiology

The McFarland BSS Standards are used as turbidity standards since 1907 to produce an expected reproducible cell density of a bacterial suspension.

The cell density is adjusted in the simple comparison to the standard. This can be directly performed visually or by measuring with a spectrophotometer.

The turbidity value of the standard of 0,5 MFU (McFarland Units) corresponds to approximately a culture density of 1,5 x 10⁸ cells/ml. This cell density is specially needed as bacterial inoculum for the antibiotic susceptibility test.

Barium sulphate suspension, Turbidity Standard

Density (D) 1,01 g/cm³
Boiling point (bp) 100 °C
Melting point (mp) 0 °C
Storage temp. +15 to +25 °C
Transport temp. ambient temp.

Turbidity Standard for adjusting the density of a bacterial suspension.
The turbidity value of the standard of 0,5 MFU (McFarland Units) corresponds to approximately a culture density of 1,5 x 10⁸ cells/ml.

The McFarland BSS Standards are used as turbidity standards since 1907 to produce an expected reproducible cell density of a bacterial suspension.

Not a medical device / Not an IVD product