| http://www.w3.org/ns/prov#value | - measures in situ on the stack rather than taking samples for analysis ?? ??seems to be making its presence felt for moisture, ammonia and other measurements that you can??t get very easily with CEMS.??But whether your measurements are taken in situ or via samples sent down heated lines to the typical CEMS shelters and cabinets on the plant floor, the regulatory demands for constant on-going calibr
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