CEN/TC 137/WG 2 - General requirements for measuring procedures

This document specifies basic performance requirements for procedures for the determination of the concentration of chemical agents in workplace atmospheres as required by the Chemical Agents Directive 98/24/EC [13]. These requirements apply to all steps of measuring procedures regardless of the physical form of the chemical agent (gas, vapour, airborne particles), measuring procedures with separate sampling and analytical methods, and direct-reading instruments.
This document specifies requirements that are fulfilled by measuring procedures when tested under prescribed laboratory conditions due to a wide range of environmental conditions encountered in practice.

This document specifies performance requirements and test methods for the evaluation of procedures for measuring metals and metalloids in airborne particles sampled onto a suitable collection substrate.
This document specifies a method for estimating the uncertainties associated with random and systematic errors and combining them to calculate the expanded uncertainty of the measuring procedure as a whole, as prescribed in ISO 20581.
This document is applicable to measuring procedures in which sampling and analysis is carried out in separate stages, but it does not specify performance requirements for collection, transport and storage of samples, since these are addressed in EN 13205-1 and ISO 15767.
This document does not apply to procedures for measuring metals or metalloids present as inorganic gases or vapours (e.g. mercury, arsenic) or to procedures for measuring metals and metalloids in compounds that could be present as a particle/vapour mixture (e.g. arsenic trioxide).

This CEN Technical Report describes how the measuring procedures for chemical agents complying with the requirements given in EN 482 and either one of EN 838, EN 1076, EN 13890, EN 13936 and/or the EN 13205 series, as far as applicable, have been chosen.
This document refers on the selection of chemical agents and related substance groups and the establishment of corresponding method lists. It describes the evaluation of available measuring procedures in order to select for a particular chemical agent the most appropriate one.
This document is also intended to:
-   provide a means to compare for a given chemical agent a new measuring procedure with those listed in the database GESTIS Analytical methods [2];
-   to evaluate and rate a given measuring procedure (from an accepted source) for a given chemical agent not yet selected in the database GESTIS Analytical methods [2].

This European Standard describes the analytical requirements for the determination of particulate diesel engine exhaust emissions in workplace atmospheres. The particulate concentration, averaged over the sampling duration is determined by the parameters total carbon, organic carbon and elemental carbon.
This European Standard enables users to determine occupational exposure to DPM according to a uniform approach and to obtain directly comparable results.
It is the responsibility of users to ascertain that the requirements of EN 482 under the given laboratory conditions are fulfilled.
Potential procedure-related cross sensitivities and interferences in particular workplaces mentioned in this European Standard have to be particularly considered.

This Amendment specifies additional requirements to be applied where health-based limit values, e.g. for carcinogenic substances, were considerably lowered. This Amendment is foreseen to change, in particular, the subclauses 5.4.4 and 5.4.5 of EN 482:2012

This European Standard specifies performance requirements and test methods for the evaluation of procedures for measuring a chemical agent present as a mixture of airborne particles and vapour in workplace air.
This European Standard establishes general principles to enable developers and users of mixed-phase samplers and methods to adopt a consistent approach to method validation and provides a framework for the assessment of method performance in accordance with EN 482.
Annex A of this European Standard gives guidance on possible approaches to sample mixtures of airborne particles and vapour and Annex B gives information about their physical behaviour.
This European Standard is not applicable to methods that differentiate between the sampled airborne particles and vapour.
This European Standard is not applicable to a chemical agent present in different chemical and physical forms (for example, mercury in the form of Hg (0) and Hg (II)).

This European Standard specifies performance requirements and test methods under prescribed laboratory conditions for the evaluation of diffusive samplers and of procedures using these samplers for the determination of gases and vapours in workplace atmospheres.
This European Standard is applicable to diffusive samplers and measuring procedures using these samplers in which sampling and analysis are carried out in separate stages.
This European Standard is not applicable to:
-   diffusive samplers which are used for the direct determination of concentrations;
-   diffusive samplers which rely on sorption into a liquid.

This European Standard specifies general requirements for the performance of procedures for the determination of the concentration of chemical agents in workplace atmospheres as required by the Chemical Agents Directive 98/24/EC (see reference [9]). The requirements given apply to all measuring procedures, irrespective of the physical form of the chemical agent (gas, vapour, airborne particles), the sampling method and the analytical method used.
This European Standard is applicable to
-   all steps of a measuring procedure,
-   measuring procedures with separate sampling and analysis steps, and
-   direct-reading devices.

This European Standard specifies performance requirements and test methods for the evaluation of procedures for measuring metals and metalloids in airborne particles sampled onto a suitable collection substrate, e.g. a filter.
This European Standard specifies a method for estimating the uncertainties associated with random and systematic errors and combining them to calculate the expanded uncertainty of the measuring procedure as a whole, as prescribed in EN 482.
This European Standard is applicable to measuring procedures in which sampling and analysis is carried out in separate stages, but it does not specify performance requirements for collection, transport and storage of samples, since these are dealt with in EN 13205 and ISO 15767.
This European Standard is not applicable to procedures for measuring metals or metalloids present as inorganic gases or vapours, e.g. mercury, arsenic (see EN 838 and EN 1076), or to procedures for measuring metals and metalloids in compounds that could be present as a particle/vapour mixture, e.g. arsenic trioxide.

This European Standard specifies performance requirements and test methods under prescribed laboratory conditions for the evaluation of pumped samplers used in conjunction with an air sampling pump and of procedures using these samplers for the determination of gases and vapours in workplace atmospheres.
This European Standard is applicable to pumped samplers and measuring procedures using these samplers in which sampling and analysis are carried out in separate stages.
This European Standard is not applicable to:
-   pumped samplers which are used for the direct determination of concentrations, for example, length-of-stain detector tubes;
-   samplers which rely on sorption into a liquid, and subsequent analysis of the solution (bubblers).

This European Standard specifies general performance requirements for procedures for the determination of the concentration of chemical agents in workplace atmospheres as required by the Chemical Agents Directive 98/24/EC (see reference [6]). These requirements apply to all measuring procedures, irrespective of the physical form of the chemical agent (gas, vapour, airborne particles), the sampling method and the analytical method used.
This European Standard is applicable to
   all steps of a measuring procedure,
   measuring procedures with separate sampling and analysis steps, and
   direct-reading devices.

This standard specifies performance requirements and test methods under prescribed laboratory conditions for length-of-stain detector tubes and their associated pump (detector tube measurement system) used for short term measurements of the concentration of specified chemical agents in workplace air.

This European Standard provides guidance on the selection of procedures, and the installation, use and maintenance of devices for the determination of concentrations of chemical or biological agents in workplace atmospheres.
This European Standard is based on the guidance given in EN 689 and the requirements of EN 482.
Where appropriate, this European Standard specifies additional requirements specific to particular procedures or devices, or classes thereof.
It is the user's primary responsibility to choose appropriate procedures or devices that meet the requirements of relevant European Standards. One way of doing this is to obtain information or confirmation from the manufacturer. Type testing, or more generally, the assessment of performance criteria of procedures or devices, can be undertaken by the manufacturer, user, test house or research and development laboratory, as is most appropriate.
Although this Standard specifically addresses workplace air, many of the procedures or devices are also relevant to the assessment of air quality in ambient or indoor air.
Specific guides exist for electrical apparatus used for the direct detection and direct concentration measurement of toxic gases and vapours in workplace atmospheres (EN 45544-4) and for diffusive samplers for the determination of gases and vapours in ambient air (prEN 13528-3).

This European Standard specifies performance requirements for battery powered pumps used for personal sampling of chemical agents in the workplace atmosphere.It also specifies the methods of laboratory type testing for determination of the performance characteristics under prescibed laboratory conditions. This European Standard is applicable to pumps whose nominal volumetric flow rate is within the range 5 ml/min to 5 l/min and which are used together with sampling devices typical for such flow rates for the sampling of gases, vapours, dusts, fumes, mists and fibres.

This document specifies general performance requirements for procedures determining the concentration of chemical agents in workplace atmospheres as required by the Chemical Agents Directive 98/24/EC (see [1]). These requirements apply to all measuring procedures, irrespective of the physical form of the chemical agent (gas, vapour, suspended matter) and of the sampling method or analytical method used.
This document is applicable to all steps of a measuring procedure.
This document is applicable to measuring procedures with separate sampling and analysis steps, and also to direct-reading devices.

This European Standard specifies performance requirements and test methods under prescribed laboratory conditions for a diffusive sampler used for the determination of gases or vapours in workplace atmospheres. Additional tests designed to establish whether the performance characteristics of the diffusive sampler are affected by the wider range of environmental influences that may be encountered in field use are described in annexes C and D.

This European Standard specifies performance requirements and test methods under   prescribed laboratory conditions for a sorbent tube used in conjunction with an air sampling pump for the determination of gases and vapours in workplace atmospheres.  Annexes recommend additional tests designed to establish whether the performance characteristics of the sampler are affected by a wider range of environmental influences.  If a sampler cannot comply with these specifications,   its range of applicability needs to be determined and quoted.