standard pressure
- noun
- /ˈstændərd ˈprɛʃər/
- Specialized
- Scientists often conduct experiments at standard pressure to ensure consistent results.
Examples
-
The same methods were then used to calculate DELTAH for R1 with different donors at 293.15 K and standard pressure. Results and the corresponding donors are provided below in Table 6.
Academic text (2018) -
The definition of a gas's properties is commonly stated at standard pressure of 101.3 kPa.
-
Many clinicians use a standard pressure for a given cuff and limb based on experience, but this pressure may be higher than that required for many patients.
Academic text (2002) -
Like abyssal diving suits, they were constructed of rigid components, since it was necessary for the occupant to be protected within a shell that could be maintained at standard pressure.
Fiction book (1999) -
Fluorine is a pale yellow gas at standard pressure and has a LOC of 0.039 gm/m³.
Academic text (1993) -
At sea level, water boils at 100°C under standard pressure conditions.
Synonyms
A unit of pressure equal to normal air pressure at sea level
A unit for measuring pressure equal to the air pressure at sea level
The usual air pressure at sea level used for checking and calibrating instruments
Surface Forms
Morphology
The compound meaning is directly compositional: 'standard' as an accepted benchmark + 'pressure' yields a reference or benchmark pressure. A B1 learner who knows both words will understand this denotes the commonly used/reference pressure (even if they don't know the exact 760 mmHg value), and similar 'standard + noun' constructions exist cross-linguistically.
Etymology
Standard pressure comes from a specific measurement: it is the pressure that holds a column of mercury 760 mm high in a glass tube at sea level and 0°C. That's why scientists use it as a common 'reference' or baseline for experiments.