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SRPS H.B8.910:2025

Standard Test Method for Total Inhibitor Content (TBC) of Light Hydrocarbons

Sep 30, 2025

General information

60.60     Sep 30, 2025

ISS

H047

Pure national standard

71.080.01  

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Scope

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.

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SRPS H.B8.910:2020

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PUBLISHED
SRPS H.B8.910:2025
60.60 Standard published
Sep 30, 2025

Related project

Adopted from ASTM D1157-23 IDENTICAL