Again, depending on the manufacturer’s instructions, a yellow color on the kH section of the test strip is an indication of 0 dKH or 0 ppm. It means that it has no carbonates and bicarbonates, just like pure distilled water. As the color progresses into a darker shade, the kH value ...
可见当海水中KH=3meq(8.4dkh)时,在KH中的Ca最多会有120ppm(通常不到一半,除非PH极高),钙反的出水所增加的Ca皆为最小值60ppm(Per 3meq),其他形式的Ca则为CaCl2 or CaSO4(简单解说的讲法,Ca在水中均为离子态Ca++),一般来说无脊椎生物取得钙镁的方式是通过H2CO3的减少,CO3--增加,让Ca自然沉淀。 第二...
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