Safety
This is defined as a rapid expansion of gases resulting in a rapidly moving pressure or shock wave.
What is an explosion?
This dimensionless number is the ratio between inertial and gravitational forces, and is used to determine the resistance of an object moving through a fluid.
What is the Froude (Fr) number?
This mode of a PID controller eliminates offset.
What is Integral?
This type of chromatography utilizes specific interactions between a solute molecule (e.g., protein) and second immobilized molecule (e.g., an antibody).
What is affinity chromatography?
What is hustle and bustle?
A Class K fire involves these materials.
What is grease or oil specifically from cooking?
This phenomenon forms damaging bubbles or voids on impellers.
What is Cavitation?
This is defined as the ratio of desired to undesired product.
What is the Selectivity?
LPS, an endotoxin that is found on the outer membrane of Gram-negative bacteria, is an acronym for this.
What is a lipopolysaccharide?
This old-fashioned rhyming phrase means everything is okay, often said by cheerful folks in denial.
What is okey-dokey?
This is the equivalent of the OSHA Threshold Limit Value - Ceiling (TLV-C).
What is Immediately Dangerous to Life and Health (IDLH)?
This type of flow can occur when the gravitational driving force exceeds the full pipe friction loss, e.g., when a liquid is being pumped up and down over hilly terrain.
What is Slack flow?
This type of control uses a sensor reading and a set point to maintain the value of a manipulated variable in a process.
What is Feedback Control?
These 3 steps are commonly used to purify a recombinant protein using chromatography.
What are bind, wash and elute?
If you’re leaving a place quickly and quietly, you're said to make this rhyming exit.
What is a clean scene?
This is the independent federal agency created under the Clean Air Amendments of 1990 is charged with investigating industrial chemical accidents.
What is the CSB? (Chemical Safety Board or U.S. Chemical Safety and Hazard Investigation Board)?
A pump characterized by approximately constant head, but with flowrates that increase or decrease depending on the system resistance.
What is a centrifugal pump?
This is the probability distribution function that describes the ages a fluid element spends in the exit stream.
What is the residence time distribution?
These are the four phases in a typical bacterial growth curve.
What are lag, exponential (or log), stationary and death (or decline) phases?
A slang term for nonsense, especially when someone’s lying through their teeth.
What is mumbo jumbo?
This instrument, abbreviated ARSST, is used to determine properties of runaway reactions
What is the Advanced Reactive System Screening Tool?
In a pump this is a measure of how close the fluid at a given point is to boiling and thus to cavitation
What is the Available Net Positive Suction Head (NPSHA)?
Adverse vapor conditions in a distillation column will cause weeping, foaming, flooding, and this.
What is Entrainment?
These are the three dimensionless numbers that are used to determine the agitator power consumption in a well-designed sparged bioreactor.
What are the Reynolds, Power and Aeration numbers?
A phrase that means totally genuine or legitimate — no tricks, just honesty.
What is the real deal?