Table 1
Sample Size | Allowable Outliers | Sample Size | Allowable Outliers |
1-32 | 1 | 430-478 | 11 |
33-68 | 2 | 479-528 | 12 |
69-107 | 3 | 529-578 | 13 |
108-149 | 4 | 579-629 | 14 |
150-193 | 5 | 630-680 | 15 |
194-238 | 6 | 681-731 | 16 |
239-285 | 7 | 732-783 | 17 |
286-332 | 8 | 784-835 | 18 |
333-380 | 9 | 836-887 | 19 |
381-429 | 10 | 888-939 | 20 |
Table 2
Coefficient of Variation | C |
0.1 | 0.5 |
0.2 | 1.2 |
0.3 | 1.8 |
0.4 | 2.5 |
0.5 | 3.1 |
0.6 | 3.8 |
0.7 | 4.4 |
0.8 | 5.1 |
0.9 | 5.7 |
where:
N = required sample size for the model year.
t95 = 95% confidence coefficient. It is dependent on the actual number of tests completed, n, as specified in the table in paragraph (B)2 of this section. It defines one-tail, 95% confidence intervals.
[SIGMA] = actual test sample standard deviation calculated from the following equation:
Xi = emission test result for an individual engine
x = mean of emission test results of the actual sample
FEL = Family Emission Limit, or emission standard if no Family Emission limit is established
n = The actual number of tests completed in an engine family
n | t95 | n | t95 | n | t95 |
2 | 6.31 | 12 | 1.80 | 22 | 1.72 |
3 | 2.92 | 13 | 1.78 | 23 | 1.72 |
4 | 2.35 | 14 | 1.77 | 24 | 1.71 |
5 | 2.13 | 15 | 1.76 | 25 | 1.71 |
6 | 2.02 | 16 | 1.75 | 26 | 1.71 |
7 | 1.94 | 17 | 1.75 | 27 | 1.71 |
8 | 1.90 | 18 | 1.74 | 28 | 1.70 |
9 | 1.86 | 19 | 1.73 | 29 | 1.70 |
10 | 1.83 | 20 | 1.73 | 30 | 1.70 |
11 | 1.81 | 21 | 1.72 | [INFINITY] | 1.645 |
Ci = max [0 or (Ci-1 + Xi--(FEL + F))]
where:
Ci = The current Cumulative Sum statistic
Ci-1 = The previous Cumulative Sum statistic. Prior to any testing, the Cumulative Sum statistic = 0 (i.e. C0 = 0)
Xi = The current emission test result for an individual engine
FEL = Family Emission Limit, or emission standard if no Family Emission limit is established
F = 0.25 x [PHI]
After each test, Ci is compared to the action limit, H, the quantity that the Cumulative Sum statistic must exceed, in two consecutive tests, before the engine family may be determined to be in noncompliance for purposes of paragraphs (c)(3)(A)4 and (c)(3)(A)5.
H = The Action Limit. It is 5.0 x [PHI], and is a function of the standard deviation, [PHI].
[PHI] = The sample standard deviation and is recalculated after each test.
Cal. Code Regs. Tit. 13, § 2407
2. Amendment of subsections (a)(2)-(3), (a)(7), (b)(2), (b)(4)(A) and NOTE filed 10-4-93; operative 11-3-93 (Register 93, No. 41).
3. Change without regulatory effect repealing article heading and amending NOTE filed 12-22-93 pursuant to title 1, section 100, California Code of Regulations (Register 93, No. 52).
4. Amendment filed 7-24-95; operative 7-24-95 pursuant to Government Code section 11343.4(d) (Register 95, No. 30).
5. Amendment of section heading, section and NOTE filed 3-23-99; operative 3-23-99 pursuant to Government Code section 11343.4(d) (Register 99, No. 13).
6. Amendment filed 9-20-2004; operative 10-20-2004 (Register 2004, No. 39).
7. Amendment of subsection (a)(7) filed 12-11-2012; operative 1-10-2013 (Register 2012, No. 50).
8. Amendment of subsections (a)(2), (a)(4)-(5) and (a)(7), repealer of subsections (a)(8) and (a)(10), subsection renumbering, amendment of newly designated subsection (a)(8) and subsections (b)(3), (b)(4)(A)-(C), (a)(5)(A), (a)(5)(B)3., (c)(2)(B)1., (c)(2)(B)9., (c)(3)(A)1., (c)(3)(A)3., (a)(3)(A)8., (c)(4)(A), (c)(4)(D)-(E), (c)(4)(E)3., (d)(1), (d)(2), (d)(3)(A), (d)(3)(B)2., (d)(6)(D)4.-5. and amendment of NOTE filed 9-14-2022; operative 1-1-2023 (Register 2022, No. 37).
Note: Authority cited: Sections 39600, 39601, 43013, 43018, 43101, 43102 and 43104, Health and Safety Code. Reference: Sections 43013, 43017, 43018, 43024, 43101, 43102, 43104, 43150- 43154, 43205.5 and 43210- 43212, Health and Safety Code.
2. Amendment of subsections (a)(2)-(3), (a)(7), (b)(2), (b)(4)(A) and Note filed 10-4-93; operative 11-3-93 (Register 93, No. 41).
3. Change without regulatory effect repealing article heading and amending Note filed 12-22-93 pursuant to title 1, section 100, California Code of Regulations (Register 93, No. 52).
4. Amendment filed 7-24-95; operative 7-24-95 pursuant to Government Code section 11343.4(d) (Register 95, No. 30).
5. Amendment of section heading, section and Note filed 3-23-99; operative 3-23-99 pursuant to Government Code section 11343.4(d) (Register 99, No. 13).
6. Amendment filed 9-20-2004; operative 10-20-2004 (Register 2004, No. 39).
7. Amendment of subsection (a)(7) filed 12-11-2012; operative 1-10-2013 (Register 2012, No. 50).
8. Amendment of subsections (a)(2), (a)(4)-(5) and (a)(7), repealer of subsections (a)(8) and (a)(10), subsection renumbering, amendment of newly designated subsection (a)(8) and subsections (b)(3), (b)(4)(A)-(C), (a)(5)(A), (a)(5)(B)3., (c)(2)(B)1., (c)(2)(B)9., (c)(3)(A)1., (c)(3)(A)3., (a)(3)(A)8., (c)(4)(A), (c)(4)(D)-(E), (c)(4)(E)3., (d)(1), (d)(2), (d)(3)(A), (d)(3)(B)2., (d)(6)(D)4.-5. and amendment of NOTE filed 9-14-2022; operative 1/1/2023 (Register 2022, No. 37).