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Pression Nomine de unitate
Symbolo
Definition
Relation al unitates del SI
atmosphera (standard)atm
= 101 325 Pa [ 1]
atmosphera (technic)at
= 1 kgf/cm2
= 9,806 65× 104 Pa [ 1]
bar bar
= 105 Pa
barye (unitate del cgs ) = 1 dyn/cm2
= 0,1 Pa
centimetro de mercurio cmHg
= 13 595,1 kg/m3 × 1 cm × g
≈ 1,333 22× 103 Pa [ 1]
centimetro de aqua (4 °C) cmH2 O
≈ 999,972 kg/m3 × 1 cm × g ≈ 98,0638 Pa [ 1]
kilogramma-fortia per millimetro quadrate kgf/mm2
= 1 kgf/mm2
= 9,806 65× 106 Pa [ 1]
kip per uncia quadrateksi
= 1 kipf/sq in
≈ 6,894 757× 106 Pa [ 1]
micron (micrometro) de mercurio
μ
{\displaystyle \mu }
= 13 595,1 kg/m3 × 1
μ
{\displaystyle \mu }
g ≈ 0.001 torr
≈ 0,133 3224 Pa [ 1]
millimetro de mercurio mmHg = 13 595,1 kg/m3 × 1 mm × g ≈ 1 torr
≈ 133,3224 Pa [ 1]
millimetro de aqua (3,98 °C) mmH2 O
≈ 999,972 kg/m3 × 1 mm × g = 0,999 972 kgf/m2 = 9,806 38 Pa
pascal (unitate del SI )Pa
= N/m2 = kg/(m·s2 )
= 1 Pa [ 2]
libra per pede quadratepsf
= 1 lbf/ft2
≈ 47,880 25 Pa [ 1]
libra per uncia (longitude) quadrate psi
= 1 lbf/in2
≈ 6,894 757× 103 Pa [ 1]
pede de aqua (39,2 °F)ftH2 O
≈ 999,972 kg/m3 × 1 ft × g ≈ 2,988 98× 103 Pa [ 1]
pede de mercurio (conventional)ftHg
= 13 595,1 kg/m3 × 1 ft × g
≈ 40,636 66× 103 Pa [ 1]
pièze (unitate del mts ) pz
= 1 000 kg/m·s2
= 1× 10 3 Pa = 1 kPa
poundal per pede quadratepdl/sq ft
= 1 pdl/sq ft
≈ 1,488 164 Pa [ 1]
tonna breve per pede quadrate = 1 tn br × g / 1 sq ft
≈ 95,760 518× 103 Pa
torr torr
= 101 325/760 Pa
≈ 133,3224 Pa [ 1]
uncia de aqua (39,2 °F)inH2 O
≈ 999,972 kg/m3 × 1 in × g ≈ 249,082 Pa [ 1]
uncia de mercurio (conventional)inHg
= 13 595,1 kg/m3 × 1 in × g
≈ 3,386 389× 103 Pa [ 1]
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Barry N. Taylor, (April 1995), Guide for the Use of the International System of Units (SI) – 68. ↑ Barry N. Taylor, (April 1995), Guide for the Use of the International System of Units (SI) (NIST Special Publication 811), Washington, DC: U.S. Government Printing Office, p. 5.
