• ASTM D4663-10

ASTM D4663-10

Standard Test Method for Polyurethane Raw Materials Determination of Hydrolyzable Chlorine of Isocyanates

ASTM International, 03/01/2004

Publisher: ASTM

File Format: PDF

$26.00$52.00


Published:01/03/2004

Pages:3

File Size:1 file , 68 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

1.1 This test method determines the hydrolyzable chlorine content of toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, or mixtures of the two. It is acceptable to apply this test method to other isocyanates of suitable solubility. (See Note 1.) The main sources of hydrolyzable chlorine in the isocyanates are carbamoyl chloride and dissolved phosgene. Both of these compounds react with alcohols and water, forming ureas, carbamates, carbon dioxide, and hydrochloric acid. (See Note 2.)

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 1 - It is possible that this test method is applicable crude polymeric isocyanates. However, the precision with crude polymeric isocyanates has not been established.

Note 2 - There is no known ISO equivalent to this standard.

More ASTM standard pdf

ASTM E918-19

ASTM E918-19

Standard Practice for Determining Limits of Flammability of Chemicals at Elevated Temperature and Pressure

$25.00 $50.00

ASTM F2129-17b

ASTM F2129-17b

Standard Test Method for Conducting Cyclic Potentiodynamic Polarization Measurements to Determine the Corrosion Susceptibility of Small Implant Devices

$29.00 $58.00

ASTM D3329-03(2017)

ASTM D3329-03(2017)

Standard Test Method for Purity of Methyl Isobutyl Ketone by Gas Chromatography

$30.00 $60.00

ASTM D2759-00(2017)

ASTM D2759-00(2017)

Standard Practice for Sampling Gas from a Transformer Under Positive Pressure

$21.00 $42.00