ASTM D 4471-2000 标准详情
- 标准号:ASTM D 4471-2000
- 中文标题:直接滴定法测定甲苯基酸中吡淀碱的标准试验方法
- 英文标题:standard test method for pyridine bases in cresylic acid by direct titration
- 标准类别:美国材料与试验协会ASTM
- 发布日期:2000-01-10
1.1 This test method covers the determination of pyridine and other basic nitrogen impurities in crude and refined cresylic acids streams, including mixtures. 1.2 This test method is applicable for pyridine base levels of 0.001% to 0.5%. 1.3 The f
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