... 151.5151.5151.0152.8GB/T 617-88Ammonia solution color,Pt-Co ≤55151SH/T 1499.3-1997Moisture,% m/m ≤0 ... kg ≤6070---17SH/T 1499.8-1997Chroma of melts,Pt-Co ≤50------10SH/T 1499.9-1997 polyurethaneApidic Acid ... ≥151.5151.5151152.8GB/T 617-88Ammonia solution color,Pt-Co ≤55151SH/T 1499.3-1997Moisture,% m/m ≤0 ... kg ≤6070---17SH/T 1499.8-1997Chroma of melts,Pt-Co ≤50------10SH/T 1499.9-1997other products: Adipic ...