配方类型：	MISCELLANEOUS
配方说明：	Boiler Scale Treatment
配方组成：
配制方法：	"Polywet" ND-2 may be used as a scale inhibitor at a dosage of 20-40 ppm under normal conditions in cooling or boiler water. For control of calcium carbonate scale, the pH should be adjusted within the range of 7-8, in recirculated cooling water.

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