xTHC[THC-FID]cor = xTHC[THC-FID]uncor - xTHC[THC-FID]init
Eq. 1065.660-1
Example:
[XI]THCuncor
[XI]THCinit
[XI]THCcor
[XI]THCcor
Eq. 1065.660-2
Where:
[XI]NMHC = concentration of NMHC.
[XI]THC[THC-FID]cor = concentration of THC, initial THC contamination and dry-to-wet corrected, as measured by the THC FID during sampling while bypassing the NMC.
[XI]THC[NMC-FID]cor = concentration of THC, initial THC contamination (optional) and dry-to-wet corrected, as measured by the NMC FID during sampling through the NMC.
RFCH4[THC-FID] = response factor of THC FID to CH4, according to § 1065.360(d) .
RFPFC2H6[NMC-FID] = NMC combined C2H6 response factor and penetration fraction, according to § 1065.365(d) .
RFPFCH4[NMC-FID] = NMC combined CH4 response factor and penetration fraction, according to § 1065.365(d) .
Example:
[XI]THC[THC-FID]cor
[XI]THC[NMC-FID]cor
RFPFC2H6[NMC-FID]
RFPFCH4[NMC-FID]
RFCH4[THC-FID]
Eq. 1065.660-3
Where:
[XI]NMHC = concentration of NMHC.
[XI]THC[THC-FID]cor = concentration of THC, initial THC contamination and dry-to-wet corrected, as measured by the THC FID during sampling while bypassing the NMC.
PFCH4[NMC-FID] = NMC CH4 penetration fraction, according to § 1065.365(e) .
[XI]THC[NMC-FID]cor = concentration of THC, initial THC contamination (optional) and dry-to-wet corrected, as measured by the THC FID during sampling through the NMC.
PFC2H6[NMC-FID] = NMC C2H6 penetration fraction, according to § 1065.365(e) .
Example:
[XI]THC[THC-FID]cor
PFCH4[NMC-FID]
[XI]THC[NMC-FID]cor
PFC2H6[NMC-FID]
Eq. 1065.660-4
Where:
[XI]NMHC = concentration of NMHC.
[XI]THC[THC-FID]cor = concentration of THC, initial THC contamination and dry-to-wet corrected, as measured by the THC FID during sampling while bypassing the NMC.
PFCH4[NMC-FID] = NMC CH4 penetration fraction, according to § 1065.365(f) .
[XI]THC[NMC-FID]cor = concentration of THC, initial THC contamination (optional) and dry-to-wet corrected, as measured by the THC FID during sampling through the NMC.
RFPFC2H6[NMC-FID] = NMC combined C2H6 response factor and penetration fraction, according to § 1065.365(f) .
RFCH4[THC-FID] = response factor of THC FID to CH4, according to § 1065.360(d) .
Example:
[XI]THC[THC-FID]cor
PFCH4[NMC-FID]
[XI]THC[NMC-FID]cor
RFPFC2H6[NMC-FID]
RFCH4[THC-FID]
[XI]NMHC = [XI]THC[THC-FID]cor - RFCH4[THC-FID]· [XI]CH4
Eq. 1065.660-5
Where:
[XI]NMHC = concentration of NMHC.
[XI]THC[THC-FID]cor = concentration of THC, initial THC contamination and dry-to-wet corrected, as measured by the THC FID.
RFCH4[THC-FID] = response factor of THC-FID to CH4.
[XI]CH4 = concentration of CH4, dry-to-wet corrected, as measured by the GC-FID or FTIR.
Example:
[XI]THC[THC-FID]cor
RFCH4[THC-FID]
[XI]CH4
[XI]NMHC
[XI]NMHC
Eq. 1065.660-6
Where:
[XI]NMHC = concentration of NMHC.
[XI]HCi = the C1-equivalent concentration of hydrocarbon species i as measured by the FTIR, not corrected for initial contamination.
[XI]HCi-init = the C1-equivalent concentration of the initial system contamination (optional) of hydrocarbon species i, dry-to-wet corrected, as measured by the FTIR.
Example:
[XI]C2H6
[XI]C2H4
[XI]C2H2
[XI]C3H8
[XI]C3H6
[XI]C4H10
[XI]CH2O
[XI]C2H4O
[XI]CH2O2
[XI]CH4O
[XI]NMHC
[XI]NMHC
[XI]NMNEHC
Eq. 1065.660-7
Where:
[XI]NMNEHC = concentration of NMNEHC.
[XI]THC[THC-FID]cor = concentration of THC, initial THC contamination and dry-to-wet corrected, as measured by the THC FID.
RFCH4[THC-FID] = response factor of THC-FID to CH4.
[XI]CH4 = concentration of CH4, dry-to-wet corrected, as measured by the GC-FID, NMC FID, or FTIR.
RFC2H6[THC-FID] = response factor of THC-FID to C2H6.
[XI]C2H6 = the C1-equivalent concentration of C2H6, dry-to-wet corrected, as measured by the GC-FID or FTIR.
Example:
[XI]THC[THC-FID]cor
RFCH4[THC-FID]
[XI]CH4
RFC2H6[THC-FID]
[XI]C2H6
[XI]NMNEHC
= 116.5 [MICRO]mol/mol
Eq. 1065.660-8
Where:
[XI]NMNEHC = concentration of NMNEHC.
[XI]HCi = the C1-equivalent concentration of hydrocarbon species i as measured by the FTIR, not corrected for initial contamination.
[XI]HCi-init = the C1-equivalent concentration of the initial system contamination (optional) of hydrocarbon species i, dry-to-wet corrected, as measured by the FTIR.
Example:
[XI]C2H4
[XI]C2H2
[XI]C3H8
[XI]C3H6
[XI]C4H10
[XI]CH2O
[XI]C2H4O
[XI]CH2O2
= 0.1 [MICRO]mol/mol
[XI]NMNEHC
xNMNEHC
Eq. 1065.660-9
Where:
[XI]CH4 = concentration of CH4.
[XI]THC[NMC-FID]cor = concentration of THC, initial THC contamination (optional) and dry-to-wet corrected, as measured by the NMC FID during sampling through the NMC.
[XI]THC[THC-FID]cor = concentration of THC, initial THC contamination and dry-to-wet corrected, as measured by the THC FID during sampling while bypassing the NMC.
RFPFC2H6[NMC-FID] = NMC combined C2H6 response factor and penetration fraction, according to § 1065.365(d) .
RFCH4[THC-FID] = response factor of THC FID to CH4, according to § 1065.360(d) .
RFPFCH4[NMC-FID] = NMC combined CH4 response factor and penetration fraction, according to § 1065.365(d) .
Example:
[XI]THC[NMC-FID]cor
[XI]THC[THC-FID]cor
RFPFC2H6[NMC-FID]
RFPFCH4[NMC-FID]
= 1.05
Eq. 1065.660-10
Where:
xCH4 = concentration of CH4.
[XI]THC[NMC-FID]cor = concentration of THC, initial THC contamination (optional) and dry-to-wet corrected, as measured by the NMC FID during sampling through the NMC.
[XI]THC[THC-FID]cor = concentration of THC, initial THC contamination and dry-to-wet corrected, as measured by the THC FID during sampling while bypassing the NMC.
PFC2H6[NMC-FID] = NMC C2H6 penetration fraction, according to § 1065.365(e) .
RFCH4[THC-FID] = response factor of THC FID to CH4, according to § 1065.360(d) .
PFCH4[NMC-FID] = NMC CH4 penetration fraction, according to § 1065.365(e) .
Example:
[XI]THC[NMC-FID]cor
[XI]THC[THC-FID]cor
= 0.020
RFCH4[THC-FID]
PFCH4[NMC-FID]
Eq. 1065.660-11
Where:
[XI]CH4 = concentration of CH4.
[XI]THC[NMC-FID]cor = concentration of THC, initial THC contamination (optional) and dry-to-wet corrected, as measured by the NMC FID during sampling through the NMC.
[XI]THC[THC-FID]cor = concentration of THC, initial THC contamination and dry-to-wet corrected, as measured by the THC FID during sampling while bypassing the NMC.
RFPFC2H6[NMC-FID] = the combined C2H6 response factor and penetration fraction of the NMC, according to § 1065.365(f) .
PFCH4[NMC-FID] = NMC CH4 penetration fraction, according to § 1065.365(f) .
RFCH4[THC-FID] = response factor of THC FID to CH4, according to § 1065.360(d) .
Example:
[XI]THC[NMC-FID]cor
[XI]THC[THC-FID]cor
RFPFC2H6[NMC-FID]
PFCH4[NMC-FID]
= 1.05
40 C.F.R. §1065.660