ASTM D5523-15
- Standard Test Method for Polyurethane Raw Materials: Acidity by Argentometric Determination of Hydrolyzable Chlorine in Monomeri
- standard by ASTM International, 04/01/2015
- Category: ASTM
$42.00
$21.00
1.1 This test method measures the hydrolyzable chlorine content of monomeric, aromatic isocyanates used as polyurethane raw materials and expresses it as HCl acidity. The test method is applicable to toluene diisocyanate (TDI) and monomeric methylene di(phenylisocyanate), known as MDI. The main sources of hydrolyzable chlorine and, therefore, acidity in monomeric aromatic isocyanates are carbamyl chlorides, acid chlorides, and dissolved phosgene. All of these compounds react with alcohols and water to form hydrochloric acid.
PDF
All of our standards document are available in PDF (Portable Document Format), an electronic, downloadable format.You will be able to download the file in your account downloads.
Multi-User Access
After purchasing, you have the ability to assign each license to a specific user.
Printable
At any time, you are permitted to make printed copies for your and your members' reference use.
ASTM D6631-05(2019)
Standard Guide for Committee D01 for Conducting an Interlaboratory Study for the Purpose of Determin..
$21.00 $42.00