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文章摘自：CIPAC手册F卷 MT18 STANDAED WATERS (一）CIPAC Standard Waters Standard Water A 20ppm hardness PH 5.0-6.0 Ca2+：Mg2+=1:1 Standard Water B 20ppm hardness PH 8.0-9.0 Ca2+：Mg2+=4:1 Standard Water C 500ppm hardness PH 7.0-8.0 Ca2+：Mg2+=4:1 Standard Water D 342ppm hardness PH 6.0-7.0 Ca2+：Mg2+=4:1 Standard Water E 1500ppm hardness PH 7.0-8.0 Ca2+：Mg2+=4:1 Standard Water F 5000ppm hardness PH 6.0-7.0 Ca2+ only Standard Water G 8000ppm hardness PH 6.0-7.0 Mg2+ only Standard Water H 634ppm hardness PH 6.0-7.0 Ca2+：Mg2+ about 2.5:1 Standard Water J 63.4ppm hardness PH 6.0-7.0 Ca2+：Mg2+ about 2.5:1 （二）Non-CIPAC Standard Waters WHO Standard Hard Water 342ppm hardness Ca2+：Mg2+ = 4:1 |
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来自： jianqi2023 > 《基础知识》
