We will exhibit at INCHEM TOKYO 2023.

This is a collection of case studies for Instran water quality meters.

A summary of case studies on the measurement and control of ammonia, aluminum, and manganese in drinking water treatment facilities has been compiled.

• Other measurement, recording and measuring instruments

Fluorine concentration can be measured with a wide range and high precision from a minimum of 0 to 0.5 ppm to a maximum of 0 to 100 ppm!

We adopt the SKA method to calculate concentration based on the difference in concentration between a standard solution of known concentration and the sample. By comparing the potential differences, we can minimize the impact of the measurement environment on the results. During measurement, reagents are used to adjust the pH. This removes interference from ions other than fluoride, enabling high-precision measurement of fluoride concentration.

• Other measurement, recording and measuring instruments

It is possible to measure chlorine ion concentration with a wide range and high precision from a minimum of 0 to 5 ppm to a maximum of 0 to 500 ppm!

The SKA method is employed to calculate concentration based on the difference in concentrations between a standard solution of known concentration and the sample. By comparing the potential differences, the influence of the measurement environment on the results can be minimized. There are several interfering substances in the measurement of chloride ions, but this method allows for their easy removal.

• Other measurement, recording and measuring instruments

It is possible to measure the concentration of dissolved ammonia, such as that found in seawater, for a wide range of applications.

The Spanish-made INSTRAN ammonia meter is designed to accommodate all types of samples, from drinking water to wastewater and seawater. It incorporates laboratory measurement techniques into an online analysis device, performing automatic calibration and automatic cleaning for each analysis, enabling high-precision measurements. The syringe volume control method ensures that the syringe does not come into contact with the sample or reagents, extending the lifespan of the syringe. It requires minimal maintenance, consumes less reagents, and maintains high precision.

• Water quality testing

Minimum measurement range 0~100 ppb! Capable of measuring low concentrations of boron!

This is an online boron concentration meter capable of measuring low concentrations of boron in the range of 0 to 100 ppb. After performing a blank measurement to correct for the effects of temperature and turbidity on the measurement, actual measurements are conducted. This minimizes the impact of environmental factors on the measurements, allowing for high-precision measurement of boron concentration.

• Other measurement, recording and measuring instruments

It is possible to measure boron concentrations of up to 500 ppm with high precision!

By using a syringe that allows for injection volume adjustments in increments of 0.0015 ml, high-precision measurement of boron concentration can be achieved through the injection of titrant. The preparation of reagents is easy and inexpensive, allowing for low-cost operation. Additionally, by adjusting the concentration of the reagents, it is possible to change the measurement range.

• Other measurement, recording and measuring instruments

Specialized in online water quality analysis, it can measure various substances such as boron and ammonium using two types of measurement methods: colorimetry and ISE.

To ensure that the water used by our customers is always managed correctly, Instran's online analysis equipment can measure many water quality parameters, including boron and ammonium, with high precision. By using two types of measurement methods, colorimetry and ISE, depending on the measurement target, we can accommodate a variety of water quality parameters. Additionally, it is equipped with automatic cleaning and calibration functions, resulting in less frequent maintenance. The amount of reagents used in a single measurement is minimal, allowing for low-cost maintenance of high precision.

• Other measurement, recording and measuring instruments

This is a collection of case studies on ammonia meters.

We have compiled the results of the introduction of ammonia concentration measurement in saltwater.

• Other measurement, recording and measuring instruments

We will be exhibiting at the "12th Conference of the Advanced Power Semiconductor Subcommittee" held at the Toyama International Conference Center. We will be introducing our latest analysis technology services, so please stop by! We sincerely look forward to your visit.

Our company will exhibit at the Measurement and Measurement Comprehensive Technology Exhibition in Hokuriku, showcasing safety products with Gemba Reporter. Please be sure to stop by booth number "72" when you visit. 【Date and Time】 November 6, 2025 (Thursday) 9:00 AM - 5:00 PM 【Venue】 Ishikawa Industrial Exhibition Hall, Building 2 From JR Kanazawa Station, take the Hokutetsu Bus bound for "Shimo-Yasuhara" and get off at "Fukurobatake Town West Green Park," then walk for 5 minutes. Alternatively, take the Hokutetsu Bus bound for "Saiseikai Hospital," get off at "Seibu Green Park," and it will take about 15 minutes by taxi. 【Materials】 https://www.line.co.jp/wp-content/uploads/2025/10/MepTechhokuriku2025.pdf 【Notes】 Please register in advance using the 2D barcode in the PDF.

Sekiguchi Iron Works Co., Ltd. will exhibit at the "Environmental Industry Expo 2025" held at S-Bird in Iida City, Nagano Prefecture. This exhibition aims to pave the way for a sustainable future from the local community. It is a trade fair for environmental-related industries originating from the Minami-Shinshu region of Nagano Prefecture. Our company will introduce next-generation solutions for reducing environmental impact and effectively utilizing energy, including our "smokeless small incinerator" and "stove," along with product panels and case studies. No pre-registration is required, and admission is free. We sincerely look forward to your visit.

Recently, fine bubbles, which are tiny bubbles smaller than 100 μm and are referred to as "fine bubbles," have attracted attention in various fields such as the environment, agriculture, food, fisheries, and medicine, due to their ability to impart various functions to liquids. Fine bubbles are classified into two types based on their size: microbubbles and ultrafine bubbles. Recently, there has been a growing interest in ultrafine bubbles, which have a lifespan of several weeks to months. However, listening to the voices of researchers and users reveals some skepticism, which has become one of the issues hindering the spread of fine bubble technology. On the other hand, we have challenged the elucidation of the stabilization mechanism of ultrafine bubbles from a new perspective by enabling the control of number density exceeding 10 billion particles/mL without pressure or concentration operations using our ultrafine bubble generation technology. In this seminar, we will provide a fundamental explanation of fine bubble technology, including the basic physical properties, characteristics and functions, device technology, measurement and evaluation methods, and case studies, to promote research and utilization of fine bubbles based on a correct understanding.

Sekiguchi Iron Works Co., Ltd. will exhibit at the "Minami-Shinshu Environmental Messe 2025" held at S-Bird in Iida City, Nagano Prefecture. This exhibition will be held simultaneously with the "Environmental Industry Trade Fair" taking place the day before. It will be held over the weekend, with many family-friendly events planned. We encourage those who usually find it difficult to visit to take this opportunity to come. Our product exhibition area is located about 10 minutes from the venue. We sincerely look forward to your visit.