safety while dealing with hydrogen Ex Zone and H2 Snoopers

We present hydrogen safety concepts and 4 hydrogen measurement or sensing system against explosion hazards.
Handling hydrogen safely involves adherence to specific regulations and guidelines to prevent accidents and ensure the well-being of individuals and the environment. Some key considerations for hydrogen safety regulations include:

National and International Standards:

Countries often have national standards and regulations related to the production, storage, transportation, and use of hydrogen.
Internationally, organizations like the International Organization for Standardization (ISO) provide standards for hydrogen technologies.
ATEX Directive:

The ATEX directive (ATmosphères EXplosibles) is a set of European Union regulations controlling equipment used in potentially explosive atmospheres. This may be relevant when dealing with hydrogen, as it is flammable.
NFPA (National Fire Protection Association):

The NFPA develops codes and standards, including NFPA 2 (Hydrogen Technologies Code) and NFPA 55 (Compressed Gases and Cryogenic Fluids Code), which provide guidelines for the safe use of hydrogen.
ISO Standards:

ISO has standards specifically related to hydrogen safety, such as ISO 19880-1 for stationary fuel cell power systems
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