No, the ASTM doesn't say that you have to take the margin of error into account. If the manufacturer says 90%, by following the ASTM and getting <90% is sufficient. Manufacturers should have built in that safety factor / margin of error into their specs. An architect might specify 88% as their own artificial and arbitrary safety factor but that is different.
frequency to read RH
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RE: frequency to read RH - eaadams - 05-31-2013, 10:00 AM
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