4.1 These test methods determine the concentration of lead (from alkyl addition) in gasoline. These alkyl additives improve the antiknock properties.
4.2 Test Method C is used to ensure compliance of trace lead as required by federal regulations for lead-free gasoline (40 CFR part 80).
1.1 These test methods cover the determination of the total lead content of a gasoline within the following concentration ranges:
0.010 to 5.0 g Pb/US gal |
0.012 to 6.0 g Pb/UK gal |
0.0026 to 1.32 g Pb/L |
1.1.1 Test Methods A and B cover the range of 0.10 to 5.0 g Pb/US gal. Test Method C covers the range of 0.010 to 0.50 g Pb/US gal.
1.2 Test Method A (formerly in withdrawn Test Method D2599)—Sections 5-9.
Test Method B (formerly in withdrawn Test Method D2599)—Sections 10-14.
Test Method C (formerly in withdrawn Test Method D3229)—Sections 15-19.