標準號：ISO 3357-1975
中文標準名稱：工業(yè)用三聚磷酸鈉和焦磷酸鈉 氧化磷(V)總含量的測定 磷鉬酸喹啉重量法
英文標準名稱：Sodium tripolyphosphate and sodium pyrophosphate for industrial use; Determination of total phosphorus(V) oxide content; Quinoline phosphomolybdate gravimetric method
標準類型：G10
發(fā)布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：G10
國際標準分類號：71.060.50
適用范圍：Based on hydrolysis of a test portion by prolonged boiling in the presence of hydrochloric acid. Precipitation of the phosphate ions in the form of quinoline phosphomolybdate in the presence of acetone. Filtration by means of a filter crucible, washing, drying and weighing of the precipitate.