UNE 53984-1:2003 Plastics. Test method for polyurethane raw materials. Aromatic isocyanates for use in the production of polyurethane. Determination of acidity.
2003UNE 53984-1:2003 Plastics. Test method for polyurethane raw materials. Aromatic isocyanates for use in the production of polyurethane. Determination of acidity.