TS EN 1540

TS EN 1540 is a terminology standard for workplace air atmospheres, intended to harmonise the terms used in this field. Its role is to reduce ambiguity by giving commonly used concepts a consistent meaning across measurement, assessment and reporting activities. As a terminology document, it establishes a shared technical language rather than prescribing a specific test method.

What workplace air terminology supports

Workplace air may contain dusts, fumes, vapours, gases and aerosols. The terms covered by this standard are those considered fundamental to occupational hygiene and exposure assessment. In practice, that matters because sampling, analysis, interpretation of measured values and comparison of results all depend on using the same vocabulary in the same way.

By defining the core language of workplace atmosphere work, the standard helps align technical usage of concepts such as exposure, sampling, particle-related terminology and measurement-related expressions. This is especially valuable where laboratories, engineers and occupational health professionals need to communicate clearly and compare findings without differing interpretations of the same term.

Scope and boundaries of the document

• Covers definitions for terms related to workplace atmospheres.
• Includes terms identified as fundamental because they are needed to avoid ambiguity and ensure consistent use.
• It is a terminology standard, not a measurement procedure or performance test standard.
• Supports the shared technical language used together with related occupational air standards.

The practical value of TS EN 1540 lies in clarity. Issues such as workplace air measurements, exposure limits or sampling strategies may be addressed in other standards; this document provides the definitions those activities rely on. In that sense, it forms a reference vocabulary for occupational hygiene, environmental measurement and health-protection practice.