NEN 6549 : 1988
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
WATER FOR BOILER PLANTS - PHOTOMETRIC DETERMINATION OF TOTAL HARDNESS
12-12-2011
12-01-2013
Describes a method for the photometric determination of the total hardness of water in boiler plants. Applicable to any kind of water in boiler plants with a total hardness of at least 1,25 [mu] mol/l and at most 10 [mu] mol/l.
| DevelopmentNote |
Supersedes NEN 3130. (10/2002)
|
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Withdrawn
|
| Supersedes |
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