外觀Appearance                         微黃色至乳白色粉末
醇解度degree of hydrolysis,%(mol/mol)  87.0～89.0 
粘度Viscosity,mPa·s                   20.5～24.5(4% 水溶液, 20°C)
乙酸鈉Sodium acetate ,%                ≤ 1.0
揮發(fā)分Volatile matter ,%               ≤ 5.0
灰分Ash,%                              ≤ 0.4
PH值                                   5～7

聚乙烯醇1788低粘度型（average M.W. 22000 ）：

外觀Appearance                         類白色至微黃色粉末
醇解度degree of hydrolysis,%(mol/mol)  87.0～89.0
粘度Viscosity,mPa·s                   4.6-5.4(4% 水溶液, 20°C)
揮發(fā)分Volatile matter ,%               ≤ 5.0
灰分Ash,%                              ≤ 0.4
PH值                                   5～7

聚乙烯醇1799型：

外觀Appearance                         白色至微黃色顆?；蝾w粒粉末
醇解度degree of hydrolysis,%(mol/mol)  98～99
粘度Viscosity,mPa·s                   22.0～28.0(4% 水溶液, 20°C)
乙酸鈉Sodium acetate ,%                ≤ 1.0
揮發(fā)分Volatile matter ,%               ≤ 8.0
灰分Ash,%                              ≤ 0.7

聚乙烯醇1797型：

外觀Appearance                         白色至微黃色顆粒、結(jié)晶或粉末
醇解度degree of hydrolysis,%(mol/mol)  96.0～98.0
粘度Viscosity,mPa·s                   23.0～29.0(4% 水溶液, 20°C)
乙酸鈉Sodium acetate ,%                ≤ 1.5
揮發(fā)分Volatile matter ,%               ≤ 7.0
灰分Ash,%                              ≤ 0.7
PH值                                   5～7