Why are there differences in the water quality parameters for feedwater between GB/T12145 and GB/T1576-2018?

2021-12-10View Original

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It was found that there is an indicator for oil content in feedwater in GB/T 1576-2018; however, this indicator is not present in the GB/T 12145 standard. Is the oil content indicator meaningless, and therefore no restrictions are needed? Or did it default to adopting the oil content criteria specified in GB/T 1576-2018? Furthermore, the water quality specifications for iron content differ in GB/T1576-2018 and GB/T12145-2016. Depending on the pressure, the values specified in GB/T 1576-2018 are 0.3 mg/L and 0.1 mg/L; however, in GB/T 12145-2016, they are 0.05, 0.02, 0.01 mg/L, etc. In actual quality control, which control indicators should be adopted?

Reply #22021-12-10

GB/T 1576-2018 Water quality for industrial boilers. GB/T 12145-2016 Quality standards for water and steam in thermal power generating units and steam power equipment. Are they talking about the same thing?

Reply #32021-12-10

Moderator, I mean that the water quality indicators for potable water in these two standards are different, hence my confusion. It seems that GB/T 12145-2016 is more stringent, so the strictest regulations should be applied during operation. In that case, GB/T 1576-2018 seems to lose its meaning. I’m not sure how the water supply to boilers is controlled in different places.

Reply #42021-12-10

This is easy to understand, right? Different things might require the same item, but the quality requirements for that item could vary.

Reply #52021-12-18