セントラル科学 List of Products and Services

●Measurement of organic substances that cannot be detected by UV ●Higher sensitivity than differential refractive index detector (RI) The Sievers TOC Analyzer M9 SEC is a detector for organic substances separated by molecular weight using a GPC/SEC system. It is capable of measuring organic substances that do not absorb UV light (such as alcohols and polysaccharides) with higher sensitivity than a differential refractive index detector (RI). Application examples: Measurement of refractory organic substances in environmental water, optimization of membrane treatment for wastewater, management of activated carbon injection amounts, measurement of precursor substances for disinfection by-products, quality control of pharmaceuticals, cosmetics, and plastics.

• Water quality testing

On-site water quality testing can be easily and accurately conducted to determine the suitability for drinking. It is also ideal for emergency situations in addition to regular water quality testing.

• Water quality testing

This is a set consisting of a UV-visible spectrophotometer and a decomposition device that can perform measurements based on the specified measurement method under the total amount regulation of the Ministry of the Environment.

• Water quality testing

This is a set configuration of a decomposition device for nitrogen and phosphorus that can easily and quickly decompose and measure total nitrogen and total phosphorus in lakes, ponds, dams, etc., along with a spectrophotometric multiparameter water quality measuring instrument.

• Water quality testing

It supports a wide measurement range of up to 15,000 mg/L. All reagents necessary for measurement are pre-adjusted; simply place the sample in the vial containing the reagent, heat it for decomposition, and then read the results with the measuring instrument.

• Water quality testing

Due to the same reaction conditions as the JIS method, a high correlation can be obtained. The amount of reagent used is significantly reduced.

• Water quality testing

● Capable of measuring multiple parameters (DO, pH/ORP, conductivity, turbidity) with one device ● Supports wireless measurement ● Easy data output via USB interface

• Water quality testing

● No calibration required, reagent-free measurement ● Ultra-low maintenance design with air cleaning + ultrasonic cleaning method

• Water quality testing

● Direct measurement of ammonium and nitrate during the process ● Automatic correction of potassium and chloride ● No sampling, no reagents required ● No calibration needed, long-term stability

• Water quality testing

● A spectrophotometer with excellent accuracy and reproducibility, and easy operation ● Capable of measuring absorbance of nitrogen, phosphorus, etc., as well as pH (electrode type) and turbidity ● Optional barcode reader, lab station, and data management software LS data are available It is also possible to measure nitrogen and phosphorus in accordance with CODMn measurement, CODcr, and total water quality regulations.

• Water quality testing

The OxiTop series is a BOD measuring device that automatically converts BOD values based on pressure changes within the sample container. The OxiTop series has been renewed, significantly improving its operability and functionality. Features: ● Adopts pressure sensor method ● Equipped with automatic temperature adjustment function ● Automatically saves measurement values for 5 days ● Completes BOD measurement with a single measurement head OxiTop-i: For general BOD measurement OxiTop-IDS: [For wireless communication measurement] For general BOD measurement, soil respiration tests, OECD/bio-degradation tests, and biogas tests (IDS/B) Topics: [What is a biodegradability test...?] Biodegradation is the process of breaking down organic matter into water and carbon dioxide with the help of microorganisms. A biodegradability test examines the extent to which organic matter decomposes under certain conditions. This test is gaining attention in many fields, including the development and improvement of new products. Recently, the issue of microplastics in the ocean has become a global concern, leading to increased focus on the development of biodegradable plastics. The OxiTop IDS A series complies with [ISO 9408 / OECD 301 F] and has a proven track record in various applications.

• Analytical Equipment and Devices

In wastewater and drainage treatment, technologies for removing phosphorus and recovering it as a resource are gaining attention, and the demand for controlling and monitoring phosphate concentration is increasing. "Alyza IQ PO4" minimizes reagent consumption and can monitor phosphate concentration stably over a long period. ● High-precision measurement even in low concentration ranges ● Reduced maintenance burden ● Approximately 1/10 the amount of reagent compared to conventional products ● Equipped with self-diagnosis function for automatic reagent management ● Capable of measuring up to 2 channels

• Analytical Equipment and Devices

This turbidity meter is optimal for continuous measurement of low turbidity in precision filtered water, such as in advanced water treatment. Its low sample flow structure leads to high-precision measurements and significant water savings. Features: - Innovative low-maintenance design - Long-lasting LED light source - Excellent accuracy through low flow measurement - Touchscreen display - Compliant with US EPA drinking water turbidity standards - Remote operation via dedicated app - Compatible with white light source (WL), red light source, and laser light source types Main Applications: - Simplification and streamlining of treatment processes - Low turbidity management in distribution reservoirs, filtered water, and membrane filtered water - Management of effluent in various plants

• Other physicochemical equipment

This is a support tool from Sievers that is convenient for TOC measurement. It can also be used with TOC analyzers from manufacturers other than Sievers. Cleaning guaranteed vials <Cleanroom Blue TOC Vials 40mL> A set of vials in a blue polypropylene case that can be used in locations where cardboard cannot be brought in. <Cleaning Validation Kit> A set of swabs and vials used for cleaning validation. <Pre-cleaned Vials with Cleaning Guarantee> Allows sampling without worrying about contamination from the container. <40mL Brown TOC Vials> Brown glass vials that prevent sample degradation due to exposure to external light. Other handled vials <40mL TOC Vials (Pre-treated)> Vials for cleaning validation that have been treated with acid to prevent protein adhesion to the glass surface as a pre-treatment. <30mL DUCT Vials> Vials developed to simultaneously collect conductivity and TOC samples with one vial. <Cap & Septa for 40mL Vials> Allows for repeated use of 40mL vials by simply replacing the cap and septa.

• Other consumables

Organic matter contained in household and factory wastewater serves as food for aquatic organisms. While BOD and COD represent the amount of oxygen consumed for the decomposition of organic matter, TOC is a water pollution indicator that expresses the absolute amount of carbon contained in organic matter. TOC measurements are conducted across a wide range of industrial fields, from wastewater and environmental water to boiler water, ultra-pure water for semiconductors, and pharmaceutical manufacturing water. There are three series categorized by application fields, each offering three types: lab-type, portable-type, and online-type. ■ M9 Series ... For the pharmaceutical industry (compliant with 3 agencies), features Data Guard function compatible with 21 CFR part 11. ■ M9e Series ... For the semiconductor industry. ■ M5310C Series ... For the water supply sector, with a custom multi-point calibration protocol that complies with notification laws, and capable of meeting the requirements of the "Guidelines for the Validation of Water Quality Testing Methods." *For details, please request materials or view the PDF data available for download.

• Analytical Equipment and Devices

The "Sievers InnovOx Lab Model" is an advanced TOC analyzer that employs the innovative oxidation technology known as "supercritical water oxidation" to decompose organic matter in sample water. It is capable of measuring TOC in samples with high salinity, such as seawater, and in samples containing insoluble substances like cellulose (particle size ≤ 0.8mm). It caters to various applications, including industrial wastewater, sewage, environmental water, and industrial processes. 【Features】 ■ Wide measurement range from 0.05 to 50,000 ppm. ■ Compatible with various applications. ■ Oxidative decomposition of various organic substances. ■ Easy operation with a user-friendly display. ■ Air filter kit that does not require gas. *For more details, please refer to the catalog or feel free to contact us.

• Other physicochemical equipment

The "Quick BOD α5000 model" is a biosensor-type BOD measuring device that utilizes microorganisms from activated sludge (microbial electrode method). The measurement time is short, within 60 minutes. By immobilizing the activated sludge and various bacteria present on-site to use as a microbial film, a high correlation with standard methods can be achieved. In addition to its use as a regular laboratory device, it can also perform stable automatic operation due to its high-precision electronic cooling and heating control function, making it suitable for continuous monitoring. 【Features】 ■ Biosensor type allows for quick measurements ■ Capable of continuous monitoring ■ Reduced maintenance burden ■ User-friendly touch key layout ■ Basic measurement range: 2 to 50 mg/L *For more details, please refer to the catalog or feel free to contact us.

• Other measurement, recording and measuring instruments

The ammonia meter "AT-2000 type" using the electric titration method is a device that allows for the rapid, accurate, and easy measurement of ammonia (NH4-N) across a wide range of applications from freshwater to seawater. The measurement time is approximately one minute, and by inputting the pH and water temperature values, the concentration of un-ionized ammonia can be easily determined. The electrode activation function reduces the frequency of electrode maintenance. 【Main Features】 ■ Easy Operation → Short measurement time: about 1 minute (measurement range: 0 to 20 mg/L) → No calibration required ■ Simple Maintenance → The electrode activation function reduces the frequency of electrode maintenance. ■ Compatible with Various Samples → Wide measurement range from low to high concentrations → Accurate measurements unaffected by color or turbidity ■ Uses environmentally friendly specially developed reagents → Does not contain boron for pH adjustment * A sister model capable of automatic continuous measurement is scheduled to be launched this spring (2014). For more details, please contact us or download the catalog.

• Other electronic measuring instruments

This is a new optical dissolved oxygen meter that eliminates the issues associated with traditional membrane-type DO (dissolved oxygen) electrodes, such as the need for flow rate adjustments, membrane replacement, and electrolyte replenishment during measurements. It is portable and can be taken anywhere, with measurement values displayed on a color screen, making it much easier to read and operate compared to other equivalent devices. It features a completely waterproof structure, a unique sensor shape that is less affected by bubbles, and a data memory capacity of 5,000 entries. Wireless measurement is also possible, making it even more convenient to use.

• Other environmental equipment

From heavy metals to nitrogen and phosphorus, a single device can measure a variety of items. A multi-parameter water quality meter with pre-programmed analysis programs. 【Features】 ○ Automatic identification via barcode ○ Equipped with automatic cell identification function ○ Results displayed simply by inserting the cell ○ Over 200 types of measurement programs ○ 100 types of user program settings ○ Easy data management via USB and RS-232 interface ○ Wavelength range: 190 to 1100 nm ● For other functions and details, please download the catalog.

• Other measurement, recording and measuring instruments

Using a green LED as the light source. Compared to the blue light of conventional optical DO sensors, the consumption rate of fluorescent materials is reduced, achieving a longer lifespan for the sensor cap. 【Features】 ■ Adopts high-precision, long-life soft green light emission technology ■ Avoids drift through EPRS method ■ Low maintenance ■ Easy installation ■ High-precision measurement possible from the moment of installation ■ Records factory calibration data and maintenance data with a data chip embedded in the sensor cap, which can be automatically retrieved simply by connecting to the IQ sensor network system ■ 2-year warranty *For other functions and details, please download the catalog.

• Other measurement, recording and measuring instruments

Significantly reduced measurement work time and high-precision measurement A COD measuring device that retains the excellent features of conventional products while being user-friendly. 【Features】 ○ Simplified blank measurement. Faster measurement operations! ○ Slide one-touch type electrode holder ○ Integrated structure of electrode and lead wire improves current efficiency and contact failure ○ Installed a pre-alarm timer for completion ○ Strong volumetric titration method for detachable samples ○ Secondary differential method adopted for detecting titration endpoints. High-precision measurement ○ Easy-to-understand operation panel with touch keys and interactive method ○ Standard functions from conventional products are also included Automatic measurement value check function, automatic conversion function for JIS method values, statistical processing of measurement results, data memory, automatic correction of blank values, etc. ● For other functions and details, please download the catalog.

• Other measurement, recording and measuring instruments

As a self-management device for VOC regulations that started on April 1, 2006, it allows for easy and rapid measurement of VOC concentration at work sites. The regulated facilities include those related to painting, adhesives, printing, solvent manufacturing, cleaning, and petroleum storage, specifically facilities with a blower capacity above a certain threshold. ● Simple, rapid, and low-cost "Power ON - Zero calibration - Measurement - Result display - Cleaning" can be completed in 1 to 2 minutes. ● High correlation with GC method (Gas Chromatography) Toluene equivalent values from ppm to several thousand ppm. ● Automatic monitoring function Automatic measurement is possible using a valve head (optional).

• Analytical Equipment and Devices

An optical sensor for turbidity/SS measurement equipped with an ultrasonic cleaning system, achieving low maintenance and long-term measurement stability. 【Features】 ■ The turbidity measurement (VisoTurb) adopts a 90-degree scattered light measurement method in accordance with ENISO 7027. ■ The SS measurement (ViSolid) employs a backscattered light measurement method. ■ Wide measurement range. ■ High resolution. ■ Equipped with automatic range switching function. ■ Suitable for a wide range of applications from drinking water to high-concentration activated sludge. ■ Built-in automatic cleaning function. ■ Low maintenance. *For other functions and details, please download the catalog.

• Water quality testing

Portable water quality meter equipped with features of laboratory measuring instruments and built-in numerous programs, capable of measuring various water quality parameters. 【Features】 ○ 70 built-in programs for measuring key parameters in water quality management, such as phosphorus and COD. ○ All necessary reagents are pre-prepared, allowing for the use of tablet reagents, powder reagents, liquid reagents, or test tube reagents depending on the parameter. ○ Measurement wavelengths: 430, 530, 560, 580, 610, 660 nm. ○ Light source: LED. ○ Dimensions: approximately 210 (L) × 95 (W) × 45 (H) mm. ○ Weight: approximately 450 g. ● For other functions and details, please download the catalog.

• Other measurement, recording and measuring instruments