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Welding fume personal exposure concentration measurement service

This is a service for measuring the personal exposure concentration of welding fumes, mandated by the revision of the Specific Chemical Substance Hazard Prevention Regulations (Special Regulations).

"Welding fumes" generated during welding operations specified in the Dust Hazard Prevention Regulations will also be designated as specific chemical substances (Category 2 controlled substances). Due to partial amendments to the Specific Chemical Substance Hazard Prevention Regulations (Special Regulations) and the Work Environment Measurement Act Enforcement Regulations, when conducting metal arc welding and similar operations, it is necessary to measure the concentration of welding fumes in the air when adopting new welding methods or changing existing ones. Amano's personal exposure concentration measurement service for welding fumes in the air involves a work environment measurement specialist assessing uniform exposure work and considering the number of measurements, measurement duration, and other factors. During the measurement, the specialist will identify any issues.

  • Contract Inspection

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[Analysis Case] Evaluation of Hydrogen Concentration in Hydrogen Water

It is possible to measure the hydrogen concentration in solutions such as hydrogen water.

Hydrogen water is said to be able to remove active oxygen in the body, and attention is being drawn to its antioxidant effects. However, the amount of hydrogen that dissolves in water is minimal, and when left in the air, hydrogen gradually escapes. Additionally, because hydrogen is a very small molecule, it is known that some storage containers cannot maintain it for long periods. Therefore, the choice of storage container and method is considered important. This case presents the results of a GC (TCD) analysis showing how much hydrogen has escaped from hydrogen water transferred to a paper cup compared to a pouch-type storage container.

  • Contract Analysis

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