Standardization News

Alpha-methylstyrene, also known as AMS, is a raw material used in the production of a variety of consumer products. For example, AMS is an ingredient in adhesives for products like diapers and boxes. In addition to its consumer adhesive uses, AMS is an ingredient in some resins used to help make cars and airplanes. A new ASTM International standard determines polymer content in AMS.

AMS manufacturers and those who use AMS as a raw material will be the primary beneficiaries of the new standard, D7977, Test Method for Polymer Content of a-Methylstyrene (AMS).

In addition, third party laboratories will find D7977 useful for quality verification during material transfers and shipping.

Previously, AMS was covered under a separate ASTM standard for polymer content in styrene. ASTM Subcommittee D16.07 on Styrene, Ethylbenzene and C9 and C10 Aromatic Hydrocarbons determined that a separate standard was needed for AMS.D16.07 is under the jurisdiction of ASTM Intenrational Committee D16 on Aromatic Hydrocarbons and Related Chemicals.

This standard will soon be available for purchase at www.astm.org, or contact ASTM Customer Relations (tel +1.877.909.ASTM; sales@astm.org). ASTM welcomes participation in the development of its standards.

CONTACT Technical Information: Scott Keenan, Ph.D., Honeywell • Philadelphia, Pa. • tel +1.215.537.2434 | ASTM Staff: Kristy Straiton • Phone: 610-832-9640 | Upcoming Meeting: June 24-25 • In conjunction with D02 June meeting • Ft. Lauderdale, Fla.