Work Item
ASTM WK68732

New Test Method for Thiophenic and non-Thiophenic Sulfur in Styrene Monomer by Gas Chromatography and Sulfur Chemiluminescence Detector

1. Scope

a. Aromatic hydrocarbons covered by this scope include monocyclic and polycyclic carbon-ring structures recovered or synthesized from any source, and which are intended primarily for use as solvents or raw materials for chemical synthesis.
b. Related chemicals covered by this scope include chemicals such as cycloalkanes, phenols, arylthiols, heterocyclics and other chemicals synthesized from ring structures.
c. Industrial and specialty chemicals covered by this scope include acids and caustics, glycols, acrylonitrile and chlorine. Excluded from the scope are paraffinic and olefinic hydrocarbons, and those aromatic and cyclic aliphatic hydrocarbons that are intended primarily for fuels and lubricants.
d. To develop and formulate specifications, test methods, practices and guides for aromatic hydrocarbons, industrial and specialty chemicals and related products.
e. To develop methods for sampling products this committee is responsible for.
f. To establish precision and bias statements for standard test methods
g. To develop and formulate standard terminology,
h. To encourage the use of uniform standards;
i. To establish new chemical product committees when their need becomes evident.
j. The work of this Committee will be coordinated with other ASTM Committees and other organizations having mutual interest.

Keywords

Sulfur; Styrene; Thiophenic sulfur; non-Thiophenic sulfur

Rationale

It has been studied that mercaptans and disulfides in styrene monomer negatively affect the downstream polymerization of Styrene. Adversely, Thiophenic sulfur is not harmful to the styrene polymerization process. Therefore there needs to be a standard method which determines the two types of sulfur in Styrene monomer (thiophenic and non-thiophenic). Furthermore, Styrene monomer specification (ASTM D2827) may change in the future to reflect non-thiophenic sulfur limitation. Thus this method can be used for the determination of the non-thiophenic sulfur in Styrene as will be specified in the new ASTM D2827.

The title and scope are in draft form and are under development within this ASTM Committee.

Details

Developed by Subcommittee: D16.07

Committee: D16

Staff Manager: Melissa Marcinowski

Work Item Status

Date Initiated: 06-18-2019

Technical Contact: Katherine Ulgenes

Item: 000

Ballot:

Status: