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Submission declined on 22 February 2026 by ClaudineChionh (talk). This draft's references do not show that the subject meets Wikipedia's criteria for inclusion for organizations and companies. The draft requires multiple published secondary sources that: provide significant coverage: discuss the subject in detail, excluding routine coverage like product launches, staff appointments, or financial reports and listings in databases or listicles; are reliable: from reputable outlets with editorial oversight; are independent: not connected to the subject, such as press releases, the subject's own website, or sponsored content. Please add references that meet all three of these criteria. If none exist, the subject is not yet suitable for Wikipedia. This draft appears to contain text generated by a large language model (such as ChatGPT). You cannot use LLMs to generate article content. LLM-generated pages with certain obvious signs of being machine generated may be deleted without notice. These tools are prone to specific issues that violate our policies: hallucinations: they often invent false information and cite non-existent references. unencyclopedic tone: they tend to be vague, promotional, or essay-like, rather than neutral and factual. copyright issues: they may closely paraphrase existing text, leading to copyright violations. Instead, only summarize in your own words a range of independent, reliable, published sources that discuss the subject. See the advice page on large language models for more information. If you would like to continue working on the submission, click on the "Edit" tab at the top of the window. If you have not resolved the issues listed above, your draft will be declined again and potentially deleted. If you need extra help, please ask us a question at the AfC Help Desk or get live help from experienced editors. Please do not remove reviewer comments or this notice until the submission is accepted. Where to get help If you need help editing or submitting your draft, please ask us a question at the AfC Help Desk or get live help from experienced editors. These venues are only for help with editing and the submission process, not to get reviews. If you need feedback on your draft, or if the review is taking a lot of time, you can try asking for help on the talk page of a relevant WikiProject. Some WikiProjects are more active than others so a speedy reply is not guaranteed. How to improve a draft Wikipedia:Contributing to Wikipedia – a basic overview on how to edit Wikipedia. Help:Wikitext – how to use the markup Help:Referencing for beginners – how to include references Wikipedia:Article development – how to develop your article Wikipedia:Writing better articles – how to improve your article Wikipedia:Verifiability – make sure your article includes reliable third-party sources You can also browse Wikipedia:Featured articles and Wikipedia:Good articles to find examples of Wikipedia's best writing on topics similar to your proposed article. Improving your odds of a speedy review To improve your odds of a faster review, tag your draft with relevant WikiProject tags using the button below. This will let reviewers know a new draft has been submitted in their area of interest. For instance, if you wrote about a female astronomer, you would want to add the Biography, Astronomy, and Women scientists tags. Add tags to your draft Editor resources Easy tools: Citation bot (help) | Advanced: Fix bare URLs Declined by ClaudineChionh 3 months ago. Last edited by Standarall111 13 days ago. Reviewer: Inform author. This draft has been resubmitted and is currently awaiting re-review.

Submission declined on 26 January 2026 by Youshouldchooseausernamethat (talk). This draft's references do not show that the subject meets Wikipedia's criteria for inclusion for organizations and companies. The draft requires multiple published secondary sources that: provide significant coverage: discuss the subject in detail, excluding routine coverage like product launches, staff appointments, or financial reports and listings in databases or listicles; are reliable: from reputable outlets with editorial oversight; are independent: not connected to the subject, such as press releases, the subject's own website, or sponsored content. Please add references that meet all three of these criteria. If none exist, the subject is not yet suitable for Wikipedia. Declined by Youshouldchooseausernamethat 4 months ago.

Submission declined on 23 January 2026 by Gheus (talk). This draft appears to contain text generated by a large language model (such as ChatGPT). You cannot use LLMs to generate article content. LLM-generated pages with certain obvious signs of being machine generated may be deleted without notice. These tools are prone to specific issues that violate our policies: hallucinations: they often invent false information and cite non-existent references. unencyclopedic tone: they tend to be vague, promotional, or essay-like, rather than neutral and factual. copyright issues: they may closely paraphrase existing text, leading to copyright violations. Instead, only summarize in your own words a range of independent, reliable, published sources that discuss the subject. See the advice page on large language models for more information. Declined by Gheus 4 months ago.

• Comment: This is very obviously LLM-generated, please don't pretend otherwise. ClaudineChionh (she/her · talk · email · global) 07:16, 22 February 2026 (UTC)

Modcon Systems Ltd is a British company headquartered in London, United Kingdom. It was established in 2011 and is listed on UK Companies House as a developer of process analyzers and control systems for industrial applications.^[1][2][3]

Modcon Systems Ltd was incorporated as a private limited company on 3 October 2011, according to UK Companies House records. Its registered office is at 10 Orange Street, Haymarket, London, WC2H 7DQ. Gregory Shahnovsky, born in October 1962 and of Azerbaijani origin, has served as a director since incorporation. Wayne Gordon was appointed as an additional director on 4 September 2025.^[1][2][3]

The company's history extends further back. A 2006 report in Chemical & Engineering News, published by the American Chemical Society, identified Gregory Shahnovsky as the company's General Manager. At the ACHEMA trade fair in Frankfurt that year, Modcon exhibited the Beacon 2000-II, a near-infrared (NIR) process analyzer. According to the report, the system could connect up to 15 process stream sensors via fiber optics to a central control room, and had been installed in refinery, pipeline, and petrochemical settings.^[4]

Chemical Engineering magazine also listed Modcon in its May 2006 product archive, noting their process NMR analyzer for real-time measurement of physical, chemical and biological parameters in petroleum refining and petrochemical industries.^[5]

In 2006, Modcon marketed the Beacon 2000-II near-infrared analyzer and the Qualion NMR analyzer, both aimed at refinery and petrochemical applications.^[4][5] Additional products such as Beacon 3000 near-infrared analyzer, MOD-4100 crude oil analyzer, MOD-1040 oxygen analyzer and MOD-1060 hydrogen analyzer were added later to the company’s products portfolio.^[6]

Hydrogen production through water electrolysis generates oxygen as a by-product. Because hydrogen has a wide flammability range (4–75% in air) and extremely low ignition energy (0.017 mJ), oxygen contamination creates safety risks. Continuous gas monitoring is required to maintain safe conditions in electrolyzer systems.^[7]

A January 2026 analysis by Inter Press Service noted that some hydrogen operators are moving toward in-situ measurement systems that work directly under process conditions, rather than relying on extractive sampling. The article pointed out that extractive methods can cause response delays and extra failure points, especially in high-pressure hydrogen service.^[7]

The October 2025 explosion at SK Energy's hydrogen plant in Ulsan, South Korea which injured five workers during routine maintenance renewed attention on hydrogen safety monitoring. ChemAnalyst reported that the incident exposed gaps in real-time monitoring during shutdown and maintenance phases.^[8]

Hydrogen facilities must comply with several regulatory regimes. The ATEX Directive (2014/34/EU) and IEC 60079 standards cover equipment in explosive atmospheres. ISO 14687 sets hydrogen fuel quality requirements for fuel cell use, placing limits on contaminants including oxygen, water, and carbon monoxide.^[9]

In 2025 Modcon Systems has been recognised with the Best Industrial Sensing Technology Award for its MOD-1040 Optical Oxygen Analyser, an achievement highlighting progress in real-time oxygen measurement for demanding industrial applications.^[10] In 2026, Modcon Systems appeared on the shortlist for the World Hydrogen Awards in the System Innovator category. The awards website stated that the nomination reflected the company's work on integrating in-situ measurement, embedded intelligence, digital communications, and AI-driven diagnostics for hydrogen production, transport, and storage.^[11]

• Hydrogen economy
• Process analytical chemistry
• ATEX directive
• Hydrogen safety