Usage scope : Specialized in monitoring whether the cold air
was completely exhausted from forevacuum
or pulsation vacuumpressure steam sterilizer or stuff packs .
Besides , the existence of cold air can be also
inspected . The color of test chart puncturedby steam with cold
air can be also inspected . The color of
test chart punctured by steam with cold air is hard to fade after
sterilization . Usage : Inspect whether the
cold air in sterilizer was exhausted effectively after pumping .
The test bag should be used directly under
132℃-134℃ for 3.5min without workers packaging .
Judgment : The color of test chart will turn regular black from initial light yellow after a cycle sterilization
under 132℃-134℃ for 3.5min .
Storage : room temperature (15℃-30℃）and dry area( humidity:<50%) as well as free from light
Validity : 24months after producing .
B-D test chart is bottom on paper, the size is the same as the cross-section of standard test package, and the front of paper is printed with a light yellow bar pattern,
the color after sterilization will not fade.
B-D test chart is the steam penetration test chart ,that dedicated to testing in pre-vacuum or pulsation vacuum pressure steam sterilizer or the packaging,whether the cold air is
completely discharged,and whether there is cold air in the package.
Used to detect that the air will be effectively eliminated from the sterilizer when prevacuum steam
sterilizer phase in vacuum exhaust stage,the use conditions is that in temperature of 132°C ~ 134°C
keeping the role of 3.5 to 4.0 minutes, test packaging can be used directly, and the staff don’t do standard package.
Processed through a sterilization cycle,in temperature of 132°C ~ 134°C,
keeping the role of 3.5 min, the light yellow bar patterns of test chart should be turned to the uniform black color.
Storage condition:Keep stored at room temperature 15°C ~ 30°C and dry place (<50% relative humidity) ,avoid to
directly contact with sunlight.
1. The saturated stream pressure should reach to 0.4Mpa 0.6Mpa if air is supplied through
pipe; and nonuniform color changes may be observed if the pressure is lower than 0.3Mpa;
2. As for the pre-vacuum steam sterilizers or high vacuum autoclave with pulsing systems
with air supply by pipe, the time of stoppingair supply should longer than 2 days; and airremoval
process should be done before reusing, or else, large amount of aqueous vapor existing in saturated stream may cause difficulty in cool air removal and wet pack, which will result
in incapability of demonstrating test results due to wet BD test paper.
Since the production date 24 months.
Produced and packed by the customer’s request .