The air density is calculated according to the following formulas:
Formula 1:
ρ
L
= Air density in kg/m
3
m
a
*
W
S
– m
S
*
W
a
ρ
S
= Density of steel in kg/m
3
ρ
L
= ––––––––––––––––––– m
S
= Mass of steel
m
a
*
W
S
–
m
S
*
W
a
W
S
= Measured value of steel
–––––––– –––––––––
ρ
A
= Density of aluminum in kg/m
3
ρ
a
ρ
s
m
A
= Mass of aluminum
W
A
= Measured value of aluminum
Formula 2:
1
– ––––––
8000
1.2
ρ
S
= Density of steel in kg/m
3
m
S
=M
S
*
––––––––––
1.2
M
S
= Conventional mass of steel
1– ––––
ρ
S
m
S
= Mass of steel
Formula 3:
1
– ––––––
8000
1.2
ρ
A
= Density of aluminum in kg/m
3
m
A
=M
A
*
––––––––––
1.2
M
A
= Conventional mass of aluminum
1– ––––
ρ
A
m
A
= Mass of aluminum
3–10
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