What is Time- temperature curve?

ASTM E152 Time- temperature curve When testing the fire resistance of constructions different time-temperature curves can be used. The time-temperature curve corresponds to different types of fire scenarios where the standard time-temperature curve in accordance with ASTM E 152 represents a normal room fire. In certain cases for example tunnel constructions other fire scenarios can be…

Read More

Bio safety cabinet VS. Laminar flow hood?

Should I buy a biological safety cabinet or a laminar flow hood? Laminar flow hoods only provide the protection for test specimen, but the operator and environment. Biological safety cabinet can provide the protection for operator, environment, and test specimen simultaneously. So, from the objects needs to be protected, you can understand what kind of…

Read More