scope:

This European Standard specifies the performance requirements on data acquisition and handling systems (DAHS) regarding implementation of the procedures defined in EN 17255-1 including - data acquisition; - data processing; - data storage; - data output; - generation of reports; - system functions; - data security; - documentation. This European Standard supports the requirements of EN 14181 and legislation such as the IED and E-PRTR. It does not preclude the use of additional features and functions provided the minimum requirements of this European Standard are met and that these features do not adversely affect data quality, clarity or access. This European Standard does not cover additional requirements for multiplexing systems where gases are sampled from multiple sources.