Withdrawn
This test method covers the determination of total p-tertiary-butylcatechol inhibitor added to polymerization and recycle grades of butadiene or to other C4 hydrocarbon mixtures containing no phenolic material other than catechol or no oxidized phenolic material other than that derived from oxidation of catechol. In general, all phenols and their quinone oxidation products are included in the calculated catechol content. Small amounts of polymer do not interfere. This test method is applicable over the range of TBC from 50 to 500 mg/kg.
WITHDRAWN
SRPS H.B8.910:2015
WITHDRAWN
SRPS H.B8.910:2020
95.99
Withdrawal of Standard
Sep 30, 2025
PUBLISHED
SRPS H.B8.910:2025