determination of ph

• Determination of ph of caseins and caseinates ; reference method
  酷朊及酷朊酸盐ph值的测定.参比法
• Butter - determination of ph of the serum - potentiometric method
  奶油.乳清ph值的测定.电位滴定法
• Analysis of butter - method for determination of ph of butter serum
  黄油分析.第7部分: ph值测定方法
• Acetylene black - determination of ph value
  乙炔炭黑ph值的测定
• Paper , board and pulps - determination of ph aqueous extracts
  纸张纸板的纸浆.水提取物中ph值的测定
• Adhesives - determination of ph - test method ; german version en 1245 : 1998
  胶粘剂. ph值测定.试验方法
• Determination of ph value in forest soil
  森林土壤ph值的测定
• Determination of ph value and acidity of starch and starch products
  淀粉和淀粉制品的ph值和酸度的测定
• Plastics ; phenolic resins ; determination of ph ; identical with iso 8975 : 1989
  塑料.酚醛树脂. ph值的测定
• Municipal domestic refuse . determination of ph . glass electrode method
  城市生活垃圾. ph的测定.玻璃电极法