Manhole Hydrogen Sulfide Gas Survey Service
We visualize the invisible corrosion risks to protect infrastructure facilities [JMS's hydrogen sulfide gas survey].
Hydrogen Sulfide Gas Survey Service We visualize the invisible corrosion risks and protect infrastructure facilities. The large-scale road subsidence accident that occurred in Yashio City, Saitama Prefecture in January 2025 highlighted the risks associated with aging sewer systems to society once again. Hydrogen sulfide (H₂S) can be generated in sewer facilities, manholes, pump stations, and drainage systems, leading to corrosion and deterioration of the equipment. Since corrosion progresses in places that are not visible, there are many cases where significant accidents or equipment failures occur by the time abnormalities are noticed. JMS Corporation supports preventive maintenance by quantitatively assessing the corrosion risks of equipment through long-term monitoring and on-site surveys of hydrogen sulfide gas.
basic information
Hydrogen sulfide gas concentration measurement 0-1000ppm
Price range
Delivery Time
Applications/Examples of results
Monitoring gas concentration inside the manhole Continuous measurement for up to 6 months
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JMES Co., Ltd. was established in July 1976 with the keyword "environmental measurement." Since then, as a pioneer in environmental measurement in Japan, we have contributed to domestic environmental measures by starting with the import of excellent measuring instruments from overseas and engaging in domestic manufacturing. We have also expanded our business into energy conservation and plant corrosion prevention equipment as an extension of environmental measurement. In September 2003, we obtained ISO 9001:2000 certification (updated to ISO 9001:2015 in September 2021) (LRQA Limited). We promise to further enhance customer satisfaction with our products and services. We position compliance with laws and regulations as our top priority and are committed to advancing as a company to realize our motto, "Make Japan Beautiful."