样品500mL即用型包装,包含: 碱度:25-400mg/L 氯离子:35-275mg/L 电导率:200-1200umhos/cm 氟离子:0.4-4mg/L K-钾:4-40mg/L Na-钠:10-100mg/L 硫酸根:5-125mg/L 总溶解固体:140-800mg/L