Your shopping cart is empty!
ASTM International, 11/01/2014
Publisher: ASTM
File Format: PDF
$29.00$58.00
Published:01/11/2014
Pages:6
File Size:1 file , 91 KB
Note:This product is unavailable in Russia, Ukraine, Belarus
1.1 These test methods measure the isocyanate content of aromatic isocyanates used as polyurethane raw materials.
1.1.1 Test Method A-Unheated toluene-dibutylamine determines the toluene diisocyanate content, the amine equivalent and the isocyanate content of refined toluene-2,4-diisocyanate and toluene-2,6-diisocyanate, or mixtures of the two. Other isomers, if present, will be included in the determination. This test method is also applicable to other isocyanates of suitable reactivity and solubility.
1.1.2 Test Method B-Heated toluene-dibutylamine determines the amine equivalent and the isocyanate content of crude or modified isocyanates derived from toluene diisocyanate, methylene di-(4-phenylisocyanate) and polymeric (methylene phenylisocyanate).
1.1.3 Test Method C-Unheated trichlorobenzene-toluene-dibutylamine determines the amine equivalent and the isocyanate content of crude or modified isocyanates derived from toluene diisocyanate, methylene-di-(4-phenylisocyanate) and polymeric (methylene phenylisocyanate).
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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 and health practices and determine the applicability of regulatory limitations prior to use.
Note 1: Method C of this test method is equivalent to Method B of ISO 14896.
Standard Specification for Perpendicularly Oriented Mineral Fiber Roll and Sheet Thermal Insulation for Pipes and Tanks
$30.00 $60.00
Standard Specification for Mineral Fiber Hydraulic-Setting Thermal Insulating and Finishing Cement
$26.00 $52.00
Standard Specification for Aluminum Alloy Castings, High-Strength
Standard Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers
