13 CA ADC § 2263 Page 1

13 CCR s 2263

Cal. Admin. Code tit. 13, s 2263

© 2010 Thomson Reuters. No Claim to Orig. US Gov. Works.

BARCLAYS OFFICIAL CALIFORNIA CODE OF 

REGULATIONS

TITLE 13. MOTOR VEHICLES

DIVISION 3. AIR RESOURCES BOARD

CHAPTER 5. STANDARDS FOR MOTOR VEHICLE FUELS

ARTICLE 1. STANDARDS FOR GASOLINE

SUBARTICLE 2. STANDARDS FOR GASOLINE 

SOLD BEGINNING MARCH 1, 1996

This database is current through 12/26/2003, Register 

2003, No. 52.

s 2263. Sampling Procedures and Test Methods.

(a)Sampling Procedures. In determining compliance with 

the standards set forth in this subarticle 2, an applicable 

sampling methodology set forth in 13 C.C.R. section 2296 

shall be used.

(b)Test Methods.

(1) In determining compliance with the standards set forth 

in this subarticle 2, the test methods presented in Table 1 

shall be used. All identified test methods are incorporated 

herein by reference.

Table 1

Section Gasoline Specification Test Method [FNa]

2262 Reid Vapor Pressure ASTM D 323-58 [FNb] or or

13 C.C.R. Section 2297

2262 Sulfur Content ASTM D 2622-94 [FNc, d]

or ASTM D 5453-93

2262 Benzene Content ASTM D 5580-00 [FNe]

2262 Olefin Content ASTM D 1319-95a [FNf]

(Through

December 31, 2001)

ASTM D 6550-00 [FNg,h,i]

(Starting January 1,

2002)

2262 Oxygen Content ASTM D 4815-99

2262 T90 and T50 ASTM D 86-99ae1

2262 Aromatic Hydrocarbon ASTM D 5580-00 [FNj]

Content

2262.5(b) Ethanol Content ASTM D 4815-99

2262.6 MTBE Content ASTM D 4815-99

2262.6(c) Oxygen from oxygenates ASTM D 4815-99

identified in section

2262.6(c)(4)

---------

[FNa] Do not report values below the limit of detection (LOD) specified in the 

 test method. Where a test method does not specify a LOD, do not report values

below the lower limit of the scope of the test method.

[FNb] Delete paragraph 4(b) concerning sampling.

[FNc] Make the following modifications to paragraph 9.1:

Low Level Sulfur Calibration Procedure

Reagents Thiophene, at least 99% purity 

2-Methylthiophene, at least 98% purity Toluene, reagent 

grade 2,2,4-Trimethylpentane, reagent grade

Preparation of Stock Standard Weigh standard materials 

thiophene (° 0.7290 gm) and 2-methylthiophene (° 0.7031 

gm) separately into a tared volumetric flask and record the 

individual mass to 0.1 mg. Add "mixed solvent" containing 
13 CA ADC § 2263 Page 2

13 CCR s 2263

Cal. Admin. Code tit. 13, s 2263

© 2010 Thomson Reuters. No Claim to Orig. US Gov. Works.

25% toluene and 75% iso-octane (by volume) into the flask 

to a net weight of approximately 50 gm and record the 

weight. This "Stock Standard" contains approximately 10 

mg/gm sulfur. The actual sulfer concentration can be calculated as follows:

Sulfur from thiophene (gm) = Weight of thiophene 

*32.06* purity/84.14

Sulfur from 2-methylthiophene (gm) = Weight of 

2-methylthiophene *32.06* purity/98.17

Sulfur concentration of Stock Standard (gm/gm) = (sulfur 

from thiophene + sulfur from 2-methylthiophene)/net 

weight of the stock standard

Multiply the sulfur concentration by 1000 to convert the 

unit to mg/gm.

Preparation of Calibration Standards Pipet 2.5 ml of the 

Stock Standard to 250 ml flask and dilute with the "mixed 

solvent" to the mark. The "Diluted Standard" contains 

approximately 100 mg/kg sulfur. Prepare 5, 10, 20, 30, 50, 

75 ppm calibration standards by pipetting 5, 10, 20, 30, 50, 

75 ml of the Diluted Standard into a 100 ml flask, respectively, and diluting with the "mixed solvent" to the mark. 

The actual concentration of the calibration standard should 

be determined from the stock standard. The standards with 

concentration ranging from 5 to 100 ppm and the "mixed 

solvent" are to be used for calibrating the instrument. 

[FNd] Replace ASTM D 2622-94 reproducibility values 

with the following:

Sulfur Content, ppm Reproducibility

10 to 30 40.5xSulfur Content (ppm)Sulfur Content (ppm)

>30 19.2x Sulfur Content (ppm)

[FNe] The reproducibility of benzene is as follows:

Reproducibility = 0.1409 (x 1.133), where X = vol %) 

[FNf] Add the following reproducibility statement for 

oxygenate-containing samples:

Range Reproducibility

Olefins 0.3 - 33 0.819(X) 0.6

X = Volume %

[FNg] Replace ASTM D6550-00 reproducibility equation 

with the following:

Reproducibility = 0.32 X0.5 where X is between 0.3 and 25 

mass % olefin 

[FNh] The conversion from mass % olefin to volume % 

olefin is defined as follows: volume % olefin = 0.857 * 

mass % olefin 

[FNi] Replace the last sentence in ASTM D6550-00 section 1.1 with the following: The application range is from 

0.3 to 25 mass % total olefins. 

[FNj] The reproducibility of total aromatic hydrocarbon is 

as follows:

Reproducibility = 1.4 volume%

(c)Equivalent Test Methods. Whenever this section provides for the use of a specified test method, another test 

method may be used following a determination by the 

executive officer that the other method produces results 

equivalent to the results with the specified method.

<General Materials (GM) - References, Annotations, or 

Tables>

Note: Authority cited: Sections 39600, 39601, 43013, 

43013.1, 43018 and 43101, Health and Safety Code; 

andWestern Oil and Gas Ass'n. v.Orange County Air 

Pollution Control District, 14 Cal.3d 411, 121 Cal. Rptr. 

249 (1975). Reference: Sections 39000, 39001, 39002, 

39003, 39010, 39500, 39515, 39516, 41511, 43000, 

43013, 43013.1, 43016, 43018 and 43101, Health and 

Safety Code; andWestern Oil and Gas Ass'n. v.Orange 

County Air Pollution Control District, 14 Cal.3d 411, 121 

Cal. Rptr. 249 (1975). 

HISTORY 
13 CA ADC § 2263 Page 3

13 CCR s 2263

Cal. Admin. Code tit. 13, s 2263

© 2010 Thomson Reuters. No Claim to Orig. US Gov. Works.

1. New section filed 11-16-92; operative 12-16-92 (Register 92, No. 47).

2. Repealer of designation of subsection (b)(1), amendment of Table 1 and

repealer of subsections (b)(2)-(2)(C) filed 9-1-94; operative 9-1-94 (Register

94, No. 35).

3. Amendment of Table 1 filed 8-7-95; operative 8-7-95 pursuant to 

Government Code section 11343.4(d) (Register 95, No. 32).

4. Redesignation of first paragraph of subsection (b) as (b)(1), amendment of

Table 1, new Table 1 footnote a and footnote relettering, repealer of former

footnote b, and new footnotes c-g, filed 2-26-96; operative 2-26-96 pursuant

to Government Code section 11343.4(d) (Register 96, No. 9).

5. Editorial correction of subsection (b)(1) - Table (Register 2000, No.

31).

6. Amendment of section and Notefiled 8-3-2000; operative 9-2-2000 (Register

2000, No. 31).

7. Amendment filed 8-20-2001; operative 8-20-2001 pursuant to Government

Code section 11343.4 (Register 2001, No. 34).

8. Amendment of subsection (b)-Table 1 filed 8-29-2001; operative 9-28-2001 

(Register 2001, No. 35).

9. Amendment filed 5-1-2003; operative 5-1-2003 pursuant to Government Code

section 11343.4 (Register 2003, No. 18).

13 CA ADC s 2263

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