Federal Register - June 29, 2021
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Source: Federal Register
34578
Federal Register / Vol. 86, No. 122 / Tuesday, June 29, 2021 / Rules and Regulations TABLE 5 OF 1065.1005SUBSCRIPTSContinued Subscript
Meaning
init
int
j
mapped
max
initial quantity, typically before an emission test.
intake air.
an individual of a series.
conditions over which an engine can operate.
the maximum i.e., peak value expected at the standard over a test interval; not the maximum of an instrument range.
measured quantity.
PM sample media.
mixture of diluted exhaust and air.
normalized.
quantity out.
power.
partial quantity.
positive-displacement pump.
after the test interval.
before the test interval.
stoichiometric product.
relative e.g., relative difference or error.
rate divided by time.
record rate.
reference quantity.
revolution.
saturated condition.
slip.
span quantity.
subsonic venturi.
standard condition.
engine strokes per power stroke.
torque.
test quantity.
alternate test quantity.
uncorrected quantity.
vacuum side of the sampling system.
calibration weight.
zero quantity
meas
media
mix
norm
out
P
part
PDP
post
pre
prod
r
rate
record
ref
rev
sat
s
span
SSV
std
stroke
T
test
test,alt
uncor
vac
weight
zero
f
2 This part uses the following molar masses or effective molar masses of chemical species:
lotter on DSK11XQN23PROD with RULES2
TABLE 7 OF 1065.1005MOLAR MASSES
g/mol 103kgmol1
Symbol
Quantity
Mair
MAr
MC
MCH3OH
MC2H5OH
MC2H4O
MCH4N2O
MC2H6
MC3H8
MC3H7OH
MCO
MCH4
MCO2
MH
MH2
MH2O
MCH2O
MHe
MN
MN2
MNH3
MNMHC
MNMHCE
MNMNEHC
MNOx
molar mass of dry air 1
molar mass of argon
molar mass of carbon
molar mass of methanol
molar mass of ethanol
molar mass of acetaldehyde
molar mass of urea
molar mass of ethane
molar mass of propane
molar mass of propanol
molar mass of carbon monoxide
molar mass of methane
molar mass of carbon dioxide
molar mass of atomic hydrogen
molar mass of molecular hydrogen
molar mass of water
molar mass of formaldehyde
molar mass of helium
molar mass of atomic nitrogen
molar mass of molecular nitrogen
molar mass of ammonia
effective C1 molar mass of nonmethane hydrocarbon 2
effective C1 molar mass of nonmethane hydrocarbon equivalent 2
effective C1 molar mass of nonmethane-nonethane hydrocarbon 2
effective molar mass of oxides of nitrogen 3
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28.96559
39.948
12.0107
32.04186
46.06844
44.05256
60.05526
30.06904
44.09562
60.09502
28.0101
16.0425
44.0095
1.00794
2.01588
18.01528
30.02598
4.002602
14.0067
28.0134
17.03052
13.875389
13.875389
13.875389
46.0055
