3M 1292 Benutzerhandbuch

The 3‑hour and 48‑hour incubation times have been correlated with a 7‑day incubation period. Sterilized indicators were examined daily for detection of a visual pH color change. The 

3‑hour fluorescence change reading and the 48‑hour visual pH color change reading were compared to the 7‑day visual pH color change readings to determine the readout reliability of 

the indicator. Readout reliability of the Attest™ 1292 rapid readout biological indicator was determined using the sensitivity calculation described below:

Sensitivity =      (Number of Growth Positives after 168 hours) – (Number of False Negatives)      X 100

Number of Growth Positives after 168 Hours

Sterilization 

Process

Incubation 

Temperature

# 

Tested

# Growth 

Positives at 

168 hours

Growth

Fluorescence

# False 

Negatives at 

48 hours

Sensitivity 

at 48 hours

# False 

Negatives at 

3 hours

Sensitivity 

at 3 hours

121°C (250°F) 

Gravity 

Displacement

60°C (140°F) 1620

800

5

99.4

0

100

132°C (270°F) 

Vacuum 

Assisted

60°C (140°F) 1270

654

2

99.7

0

100

These data demonstrate that ≥ 97% of the 7‑day (i.e. 168 hours) growth visual positives were detected by fluorescence within 3 hours of incubation and by the visual pH color within 

48 hours of incubation. The 3M™ Attest™ 1292 Rapid Readout Biological Indicator therefore meets readout reliability of ≥ 97% for the 3 hour fluorescence results and the 48 hour 

visual color change results.

Caution, see instructions for use

Do not reuse

Use by date

Batch code

Manufacturer

Catalog number

For France and other countries that 

recognize the CE mark for this device.

Made in U.S.A. by

2510 Conway Ave. 

St. Paul, MN 55144 

1‑800‑228‑3957 

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Used under license in Canada. 

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