Abstract
This specification covers toluene diisocyanate used as an ingredient in the production of polyurethane cellular materials. The three classes of toluene diisocyanate covered in this
specification are based on isomer ratio, and the three types are based on acidity and hydrolyzable chloride. Materials shall be tested and the individual grades shall conform to specified
values of isomer ratio, purity, APHA color, and total chlorine.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for
its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
1.1 This specification covers toluene diisocyanate used as an ingredient in the production of polyurethane materials.
Note 1The properties included in this specification are those required to characterize toluene diisocyanate. Other requirements are possible and will be added as
the necessary test methods become available.
1.2 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 and health practices and determine the applicability of regulatory limitations prior to use.
Note 2There is no known ISO equivalent to this standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D883 Terminology Relating to Plastics
D4660 Test Methods for Polyurethane Raw Materials: Determination of the Isomer Content of Toluenediisocyanate
D4661 Test Methods for Polyurethane Raw Materials: Determination of Total Chlorine in Isocyanates
D4663 Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates
D4877 Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
D5155 Test Methods for Polyurethane Raw Materials: Determination of the Isocyanate Content of Aromatic Isocyanates
D5629 Test Method for Polyurethane Raw Materials: Determination of Acidity in Low-Acidity Aromatic Isocyanates and Polyurethane Prepolymers
Federal Standard
49 CFR Transportation Part 172.01 Code of Federal Regulation is available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE,
Washington, DC 20401.
Keywords
polyurethane; raw materials; specification; TDI; toluene diisocyanate;Isocyanates; Plastics--specifications; Toluene diisocyanate (TDI); Urethane foam;
ICS Code
ICS Number Code 83.080.20 (Thermoplastic materials)
DOI: 10.1520/D1786-10
ASTM International is a member of CrossRef.
ASTM D1786