A. Except as
provided in subsection (C), a registered supplier certifying Arizona CBG or
AZRBOB as meeting the requirements of this Article shall use one of the EPA- or
CARB-approved ASTM methods listed in Table A, a copy of which may be obtained
at: ASTM International, 100 Bar Harbor Drive, West Conshohocken, PA 19428-2959
or
www.astm.org. A copy of the CARB
methods may be obtained at: California Air Resources Board, P.O. Box 2815,
Sacramento, CA 95812 or
www.arb.ca.gov.
B. An oxygenate blender or third-party
terminal certifying Arizona CBG or AZRBOB before transport to the CBG-covered
area shall measure the oxygenate content in accordance with the oxygenate
blender's or third-party terminal's approved QA/QC program or in accordance
with one of the methods listed in Table A.
C. Rather than using a method listed in Table
A to certify Arizona CBG or AZRBOB, a registered supplier may use the CARBOB
Model and use the fuel-quality measures calculated using the CARBOB Model for
compliance and reporting purposes.
D.
A test method that the Division determines is
equivalent to those listed in Table A may be used to certify Arizona CBG or
AZRBOB. The Division has determined that test methods approved by either the
EPA or CARB are equivalent test methods. To determine whether a proposed test
method is equivalent to those listed in Table A, the Division shall thoroughly
review data from both the proposed and designated test methods and assess
whether the accuracy and precision of the proposed method is equal to or better
than the accuracy and precision of the designated method and whether there is
significant bias between the two methods. The Division shall approve a proposed
test method only if the Division determines that the accuracy and precision of
the proposed test method is equal to or better than the accuracy and precision
of the designated method and receives the concurrence of the EPA Regional
Administrator. A correlation equation may be required to align the two methods.
If a correlation equation is required to align the two methods, the correlation
equation becomes part of the equivalent method.
D. A test method that the Division determines
is equivalent to those listed in Table A may be used to certify Arizona CBG or
AZRBOB. The Division has determined that test methods approved by either EPA
methodology described in 40
CFR
1090.1360 or CARB are equivalent test
methods. EPA referee methods from
40 CFR
80.47 as it existed December 31, 2020, may be
used if the tested property is not listed in
40 CFR
1090.1360. If a correlation equation is
required by EPA, CARB, or the ASTM test method, the correlation equation shall
be used to align the test methods, and becomes part of the equivalent test
method.
E.
Subsections (C) and (D) will not become effective
until Arizona's revised State Implementation Plan submitted by ADEQ to EPA in
August 2013 and subsequent supplement submitted July 2014 is approved by
EPA.
Table A. Arizona Weights and
Measures Services Division Test Methods for Arizona CBG and
AZRBOB
|
Fuel
Parameter
|
Units
|
EPA-approved Test
Method
|
EPA-approved
Reproducibility
|
CARB-approved Test
Method
|
CARB-approved
Reproducibility
|
|
Aromatics
|
V%
|
D5769-04
|
|
V%
|
D1319-02a
(2003)A
|
1.65
|
D5580-00
|
1.4
|
|
Benzene
|
V%
|
D3606-99
(2007)
|
0.21
|
D5580-00
|
0.1409 (X)
1.133
|
|
Olefins
|
V%
|
D1319-02a
(2003)
|
0.32
(x)0.5
|
D6550-00 (2005) if
correlated to D1319
|
0.32 (X) 0.5; Footnote
1
|
|
Oxygenates
|
W%
|
D5599-00
|
See test
method
|
D4815-99
(2004)
|
See test
method
|
|
W%
|
D4815-99
(2004)B
|
See test
method
|
|
Vapor Pressure
(Correlation Equation) Footnote 2
|
psi
|
D5191-01
(2007)
|
0.3
|
13 CCR Section
2297
|
0.21
|
|
Sulfur
|
wppm
|
D2622-98
(2005)
|
D5453-93
|
0.2217 (x) 0.92
wppm
|
|
D2622-94
(modified)
|
10-30 wppm
R=0.405 (x) > 30 wppm
R
=0.192
(x)
|
|
Distillation
T50
|
deg
F
|
D86-01
(2007b)
|
See test
method
|
D86-99ae1
|
See test
method
|
|
Distillation
T90
|
deg
F
|
D86-01
(2007b)
|
See test
method
|
D86-99ae1
|
See test
method
|
|
AA refinery refiner, blender, or
importer may determine aromatics content using ASTM D1319-02a (2003) D1319-20a
if the result is correlated to ASTM D5769-98 (2004) D5769-20.
BA refinery refiner, blender, or
importer may determine oxygenate content using ASTM D4815-99 (2004) if the
result is correlated to ASTM D5599-00 (2005).
Footnotes:
1. Replace the last
sentence in ASTM D6550-00 (2005) Section 1.1 with the following: "The
application range is from 0.3 to 25 mass percent total olefin, as defined in
Section 2263(b), Title 13, California Code of Regulations. If olefin
concentrations are not detected, substitute one-half of the detection
limit."
2. When determining vapor
pressure, the only correlation equation to be used is equation 1 in ASTM
D5191-07, Section 14.2, ASTM equation ((.965X)-A).
|
Notes
Ariz. Admin. Code §
R3-7-759
Adopted by
final rulemaking at
23
A.A.R. 2280, effective
10/2/2017. Amended
by final rulemaking at
24
A.A.R. 2666, effective
11/10/2018.
Amended by final rulemaking at
29
A.A.R. 442, effective 3/5/2023.
