What boiler water test would be given to insure that the boiler water contains sufficient chemicals to transform hard scale forming salts into harmless sludge which would eventually be removed with blow downs?
ā¢ Boiler water treatment and why scale control is important ā¢ The role of phosphates, alkalinity, and sludge in preventing hard scale ā¢ Difference between tests that measure oxygen/scavengers vs. tests that measure scaleāforming salts
ā¢ Which chemical treatment in the answer choices is specifically used to react with calcium and magnesium (hardness) to form a soft, removable sludge? ā¢ Which tests are mainly for monitoring corrosion risk (like dissolved oxygen or acidity) rather than controlling hard scale? ā¢ Think about which test an engineer would monitor to ensure scaleāforming salts are being converted into something that can be removed by blowdown.
ā¢ Identify which choice is directly associated with calcium and magnesium hardness control in boilers ā¢ Eliminate any tests that are primarily for chloride concentration (salinity/leak detection) instead of scale control ā¢ Eliminate any tests that are primarily for oxygen scavenging/corrosion protection rather than turning hard scale into sludge
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