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Federal Register / Vol. 86, No. 122 / Tuesday, June 29, 2021 / Rules and Regulations TABLE 1 OF 1065.720aTEST FUEL SPECIFICATIONS FOR LIQUEFIED PETROLEUM GASContinued Reference procedure a
Property
Value
Moisture content

pass

ASTM D2713.

a Incorporated
by reference; see 1065.1010. See 1065.701d for other allowed procedures.
b If these two test methods yield different results, use the results from ASTM D1267.
c The test fuel must not yield a persistent oil ring when you add 0.3 ml of solvent residue mixture to a filter paper in 0.1 ml increments and examine it in daylight after two minutes.

1065.750

367. Amend 1065.750 by revising paragraph a1ii to read as follows:

Analytical gases.

a

1
ii Contamination as specified in the following table:

TABLE 1 OF 1065.750GENERAL SPECIFICATIONS FOR PURIFIED GASES a Constituent
Purified air
THC C1-equivalent
CO
CO2
O2
NOX
N2O b

0.05 mol/mol
1 mol/mol
10 mol/mol
0.205 to 0.215 mol/mol
0.02 mol/mol
0.02 mol/mol

a We b The
Purified N2
0.05 mol/mol.
1 mol/mol.
10 mol/mol.
2 mol/mol.
0.02 mol/mol.
0.02 mol/mol.

do not require these levels of purity to be NIST-traceable.
N2O limit applies only if the standard-setting part requires you to report N2O or certify to an N2O standard.

368. Amend 1065.790 by revising paragraph b to read as follows:

1065.790

Mass standards.

b Dynamometer, fuel mass scale, and DEF mass scale calibration weights.

Use dynamometer and mass scale calibration weights that are certified as NIST-traceable within 0.1% uncertainty.
Calibration weights may be certified by any calibration lab that maintains NISTtraceability.

369. Amend 1065.905 by revising paragraph f to read as follows:

1065.905

General provisions.

f Summary. The following table summarizes the requirements of paragraphs d and e of this section:

TABLE 1 OF 1065.905SUMMARY OF TESTING REQUIREMENTS SPECIFIED OUTSIDE OF THIS SUBPART
Subpart
Applicability for field testing a
Applicability for laboratory or similar testing with PEMS without restriction a
A: Applicability and general provisions.
B: Equipment for testing

Use all

Use all

Use all.

Use 1065.101 and 1065.140 through the end of subpart B of this part, except 1065.140e1 and 4, 1065.170c1vi, and 1065.195c. Section 1065.910 specifies equipment specific to field testing.
Use all Section 1065.915 allows deviations.

Use all

Use all. Section 1065.910
specifies equipment specific to laboratory testing with PEMS.

Use all except 1065.295c.

D: Calibrations and verifications.

Use all except 1065.308 and 1065.309. Section 1065.920 allows deviations, but also has additional specifications.

Use all

E: Test engine selection, maintenance, and durability.
F: Running an emission test in the laboratory.
G: Calculations and data requirements.

Do not use Use standard-setting part.

Use all

Use all except 1065.295c.
Section1065.915 allows deviations.
Use all. Section 1065.920
allows deviations, but also has additional specifications.
Use all.

Use 1065.590 and 1065.595 for PM. 1065.930
and 1065.935 to start and run a field test.
Use all Section 1065.940 has additional calculation instructions.

Use all

Use all.

Use all

H: Fuels, engine fluids, analytical gases, and other calibration materials.
I: Testing with oxygenated fuels.

Use all

Use all

Use all. Section 1065.940
has additional calculation instructions Use all.

Use all

Use all

Use all.

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Applicability for laboratory or similar testing with PEMS with restrictions a