glass electrode News
-
ASTM D1287 - 11 standard test method for ph of engine coolants and antirusts
pH is a measure of the hydrogen ion concentration and indicates whether an engine coolant, antirust, or a solution of these compounds is acidic, alkaline, or neutral. The pH range includes values from 0 to 14. Values from 0 to 7 represent the acidic half of the scale. Values from 7 to 14 represent the alkaline or basic half of the scale. The pH value 7 is considered neutral, ...
-
Monitoring of nickel sulfate, hypophosphite and alkalinity in electroless nickel plating baths
Metrohm’s ProcessLab atline analysis system is a robust solution for monitoring the nickel sulfate and hypophosphite concentrations as well as the alkalinity in electroless nickel plating baths. All relevant process parameters are available immediately after sampling. Implemented right on the production floor, ProcessLab brings the lab to the process allowing plating baths to be operated ...
By Metrohm AG
-
New: Useful Accessories for portable measurements
Do you want to use your precious pH electrode with glass shaft sometimes outside the laboratory? Here is the right solution for you: No matter if a conventional pH electrode or a digital one: Protect your electrode with the new armoring A pHLab/K for 120 mm electrodes. Use the advantage of precision electrodes also when doing portable ...
-
Useful Accessories for Portable Measurements
Do you want to use your precious pH electrode with glass shaft sometimes outside the laboratory? Here is the right solution for you: No matter if a conventional pH electrode or a digital one: Protect your electrode with the new armoring A pHLab/K for 120 mm electrodes. Use the advantage of precision electrodes also when doing portable measurement! ...
-
ASTM D1293 - 12 Standard Test Methods for pH of Water
The pH of water is a critical parameter affecting the solubility of trace minerals, the ability of the water to form scale or to cause metallic corrosion, and the suitability of the water to sustain living organisms. It is a defined scale, based on a system of buffer solutions with assigned values. In pure water at 25°C, pH 7.0 is the neutral point, but this varies with temperature and the ...
-
Knowing the Real Corrosion Potential of Fuel Ethanol – Measuring pHe According to ASTM D6423
Excessive acidity in alcohol based fuels accelerates engine corrosion. Total Acid Number (TAN) accounts for all titratable acids regardless of their strength and is therefore not suitable to accurately predict the corrosion potential. pHe, on the other hand measures the strength of the acids present in the sample. Therefore, pHe is the better parameter for manufacturers to monitor the corrosion ...
By Metrohm AG
-
Knowing the real corrosion potential of fuel ethanol – measuring pHe according to ASTM D6423
Excessive acidity in alcohol based fuels accelerates engine corrosion. Total Acid Number (TAN) accounts for all titratable acids regardless of their strength and is therefore not suitable to accurately predict the corrosion potential. pHe, on the other hand measures the strength of the acids present in the sample. Therefore, pHe is the better parameter for manufacturers to monitor the corrosion ...
By Metrohm AG
-
Calibration Free pH Sensing in Hoagland Solution
Calibration Free pH Sensing in Hoagland Solution ANB Sensors are developing a solid-state pH Sensor which is calibration free, operates over a wide pH range and is specifically tailored for low buffer media. The sensor operates using a standard reference electrode and a counter electrode, but with two sensing electrodes through which standard square wave voltammetry is recorded. The first ...
By ANB sensors
-
Ammonium - fast and robust determination according to current ISO, EPA, and ASTM standards using direct measurement
Determination of ammonium is one of the most crucial applications for sectors such as water and waste water analysis, fertilizers, and others. Metrohm Application Bulletin AB-133 describes the determination of Ammonium by ion measurement according to ISO 6778, EPA 359.2, EPA 305.3, and ASTM D1426. Tips & Tricks on how on how to deal with possible interferences, sample preparation, and ...
By Metrohm AG
-
ASTM C233 / C233M - 11 standard test method for air-entraining admixtures for concrete
This test method is used to develop data for comparison with the requirements of Specification C260. These tests are based on arbitrary stipulations permitting highly standardized testing in the laboratory, and are not intended to simulate actual job conditions. 1. Scope 1.1 This test method covers the testing of materials proposed for use as ...
-
RoHS – The Most Important at a Glance
What does RoHS mean? RoHS is the abbreviation for „Restriction of the use of certain Hazardous Substances in electrical and electronic equipment”. The abbreviation refers to the so called RoHS directive 2011/65/EU, which forms the legal framework. The goals of the regulation are the protection of human health and of the environment.1) The directive is applicable for the EU and ...
-
Measurment of pH in Low Conductivity Water
Measuring pH of pure water. The measurement of pure water pH can be one of the quickest indicators of process contamination in the production or distribution of pure water. The presence of gaseous contaminants such as air or carbon dioxide will shift the pH of the pure water, indicating air or gas intrusion into the process line. The exhaustion of resin beds used to prepare or polish pure water ...
-
ASTM E50 - 11 standard practices for apparatus, reagents, and safety considerations for chemical analysis of metals, ores, and related materials
The inclusion of the following paragraph, or a suitable equivalent, in any standard (preferably after the section on Scope) is due notification that the apparatus and reagents required in that standard are subject to the recommendations set forth in these ...
-
New compact online pH analyzer – a great alternative to inline pH measurement
Metrohm Process Analytics now offers the 2026 pH Analyzer, part of a new family of economical online process analyzers. These powerful, compact process analyzers are integrated solutions for 24/7 online analysis of critical chemical parameters in industrial processes and wastewater streams. These single-method systems are available in several application-specific configurations for ...
By Metrohm AG
-
Oxford University Innovation licenses pH sensing technology to ANB Sensors.
Innovation licenses pH sensing technology to ANB Sensors. A novel carbon-based electrode, which is electrochemically optimised to perform pH measurements over a wide range, is the subject of a new licensing deal between Oxford University Innovation (OUI), the research commercialisation arm of Oxford University, and electrochemical sensor developer ANB Sensors. These sensors are the latest in a ...
By ANB sensors
-
The Royal Mint improves pH control in water effluents
Analytical Technology Inc. (ATi) said this week that the UK's Royal Mint has selected its Q45/72 pH/ORP monitor to improve the quality of its effluents and to better comply with Environment Agency regulations. The versatile Q45/72 system is designed for use in industrial and municipal applications and contains sensors specifically engineered to function normally in applications where conventional ...
-
Save money – store your pH electrodes properly!
Combined pH electrodes (commonly pH electrodes) are electrochemical sensors which are in interaction with the sample. The strongest exposure concerns the most important parts of the electrodes, glass membrane and junction with the reference system in its back. For the storage of pH electrodes are some points to be considered. But first we give for better understanding of the principle a short ...
-
Save Money – Store Your pH Electrodes Properly!
Combined pH electrodes (commonly pH electrodes) are electrochemical sensors which are in interaction with the sample. The strongest exposure concerns the most important parts of the electrodes, glass membrane and junction with the reference system in its back. For the storage of pH electrodes are some points to be considered. But first we give for better understanding of the principle a short ...
-
Release of NEW Small Diameter pH and Conductivity Probes
These new electrodes are fully compatible with MANTECH’s MT Automated Environmental Titration Systems and can be swapped in place of existing electrodes. With diameters of 5mm (Conductivity) and 6mm (pH), the sample volume required for analysis is greatly reduced resulting in savings on time, reagent usage, transport cost, and waste generated. Implementation of these electrodes is the ...
By MANTECH Inc.
-
ASTM B117 - 11 standard practice for operating salt spray (fog) apparatus
This practice provides a controlled corrosive environment which has been utilized to produce relative corrosion resistance information for specimens of metals and coated metals exposed in a given test chamber. Prediction of performance in natural environments has seldom been correlated with salt spray results when used as stand alone data. Correlation and extrapolation of corrosion performance ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you