Scope

1.1 This specification covers re-refined engine oil bottoms,
also known as vacuum tower asphalt extender, that may be
used in formulating asphalt for pavement construction and
roofing. This specification has been developed specifically for
these two categories of product and is not intended for other
uses. Table 1 is to be used for pavement construction and Table
2 for roofing. “Re-refined engine oil bottoms” (REOB) is the
prevailing name used by many state highway agencies and
FHWA, while “vacuum tower asphalt extender” (VTAE) is the
preferred name used by the manufacturers of the product. Since
each name provides an important descriptor of production
elements (“re-refined” and “vacuum tower”) for the specific
product this specification addresses, this specification uses the
term “REOB/VTAE.”
1.2 Units—The values stated in either SI units or inchpound
units are to be regarded separately as standard. The
values stated in each system may not be exact equivalents;
therefore, each system shall be used independently of the other.
Combining values from the two systems may result in nonconformance
with the standard.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate
safety, health, and environmental practices and determine
the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance
with internationally recognized principles on standardization
established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations
issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Society for Testing and Materials
Pages
ISBN