water quality measurement method News

  • Method developed to measure solute movement in soils

    Scientists from Aarhus University and Aalborg University in Denmark have developed a new method for measuring the movement of solutes in intact soil. Improving on the existing method, the new procedure can be used on intact, undisturbed soil and provides more confident estimates. Movement, or diffusion, of solutes in soils is involved in many processes of agronomical, environmental and technical ...

  • Approved Methods List for Water Quality Testing Utilizing MANTECH Solutions

    MANTECH has produced and published this document appropriately titled, “Approved Methods for the Analysis of Water, Wastewater and Soils”.  Twenty-nine (29) different environmental parameters are included for water and soil analysis. Included in the table are pH, conductivity (EC), alkalinity, turbidity, color, chloride, fluoride and hardness. Additional information ...


    By MANTECH

  • Water-testing Device Measures Up

    Arkansas reporter John Magsam wrote the following article regarding Beaver Water District and their use of the ChlordioX Plus instrument, which recently gained EPA approval for the determination of chlorine dioxide and chlorite in public water supplies. Water-testing Device Measures Up EPA approves system that got a trial run in Arkansas By John Magsam A new water-testing device that ...

  • 3-D laser scanning: A new soil quality measurement

    Soil researchers pay close attention to bulk density, as it is one of the most common soil measurements and it is often used as a measure of soil quality. A soil’s bulk density can be indicative of the ease of root penetration, water movement, and soil strength. Measuring this value with traditional methods has been difficult in the past, but researchers have developed a new method using laser ...

  • Comply with Highly Regulated Oil in Water Measurements

    The Petroleum Industry – both offshore and onshore -- has regulations that limit the amount of oil in discharged water.  Fixed filter infrared (IR) analyzers have been used to test oil levels in produced water on drilling platforms for over 45 years.  On oil rigs where real estate is at a premium, infrared analyzers such as the Wilks InfraCal Analyzers are compact (typically 6 ...


    By Spectro Scientific

  • ASTM C1072 - 11 standard test methods for measurement of masonry flexural bond strength

    This test method is intended for use in comparing the bond strengths (under the given conditions) of masonry mortars. This test method could be used, for example, to check one aspect of the quality of mortar products after production, or to indicate the bond potential of a mortar product without requiring the product to be tested in combination with many different units. ...


    By ASTM International

  • ASTM E2029 - 11 standard test method for volumetric and mass flow rate measurement in a duct using tracer gas dilution

    The method presented here is a field method that may be used to determine mass and volume flow rates in ducts where flow conditions may be irregular and nonuniform. The gas flowing in the duct is considered to be an ideal gas. The method may be especially useful in those locations where conventional pitot tube or ...


    By ASTM International

  • 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 ...


    By ASTM International

  • New ways of measuring our water environment

    General Quality Assessment figures from the Environment Agency released this week show that 76 per cent of all UK rivers in the UK achieved ‘good’ or better status for chemical water quality in 2007. From 2008, the new European Water Framework Directive replaces General Quality Assessment,  which means that the way of measuring the quality of our water bodies has changed. As well as rivers, ...

  • Study to measure long-term hard water damage

    Expanding on a major study already underway, the Water Quality Research Foundation has retained an independent testing firm to measure how hard water might damage many common household fixtures and appliances. In February, WQRF hired the Battelle Memorial Institute, a non-profit international science and technology enterprise, to examine the amount of energy savings that water softeners offer. ...

  • ASTM D3454 - 11 standard test method for radium-226 in water

    The most prevalent of the five radium isotopes in ground water, having a half life greater than one day, are 226Ra and 228Ra. These two isotopes also present the greatest health risk compared to the other naturally occurring nuclides of equal concentrations if ingested via the water pathway. Although primarily utilized on a water medium, this technique may be applicable for the ...


    By ASTM International

  • ASTM D3454 - 11 standard test method for radium-226 in water

    The most prevalent of the five radium isotopes in ground water, having a half life greater than one day, are 226Ra and 228Ra. These two isotopes also present the greatest health risk compared to the other naturally occurring nuclides of equal concentrations if ingested via the water pathway. Although primarily utilized on a water medium, ...


    By ASTM International

  • Improving water quality in Europe`s rivers

    The European Water Framework Directive (WFD) urges policy implementation managers to respond to poor ecological, chemical and quantitative status of the water system caused by negative pressures from different drivers. This issue discusses recent experiences with regard to different stages of river basin management strategy, to help us understand how we can safeguard water, an indispensible ...

  • New approaches to measuring metal concentrations in water in Europe

    EU Member States are required to monitor concentrations of metals in surface water in order to comply with regulations laid out under the Water Framework Directive. Current sampling methods may produce uncertain estimates of pollutant levels. A new study provides evidence that combining different sampling techniques can produce more reliable estimates. In 2006, the European Commission issued a ...

  • ASTM D516 - 11 standard test method for sulfate ion in water

    The determination of sulfate is important because it has been reported that when this ion is present in excess of about 250 mg/L in drinking water, it causes a cathartic action (especially in children) in the presence of sodium and magnesium, and gives a bad taste to the water. 1. Scope 1.1 This turbidimetric test method covers the determination of sulfate in water in the ...


    By ASTM International

  • U.S. EPA approves ASTM test methods for contaminated water testing

    In an action effective on Nov. 10, 2009, 15 methods contained in 10 ASTM standards are among 25 analytical methods that the U.S. Environmental Protection Agency has approved for determining contaminant concentrations in samples collected under the Safe Drinking Water Act. The methods are under the jurisdiction of Subcommittee D19.05 on Inorganic Constituents in Water, part of ASTM Committee D19 ...


    By ASTM International

  • Next-generation analysis systems for controlling water quality

    Knowing whether the water in our reservoirs is contaminated by a specific bacterium or if the river passing through our town contains an excessive amount of heavy metals is vital when confronting environmental or public health problems. To this end it is necessary to have a network of analysis systems which measures the chemical and biological parameters of these water sources. Current devices ...

  • Hach Company Presents Water Quality Solutions at IFT

    Monitor raw water, CIP, in-process applications, and wastewater more effectively Loveland, Colorado - Hach Company, the leader in water quality analysis, will present several lab and process instrumentation solutions for monitoring water safety, product quality, and wastewater discharge at the FoodSmarts IFT 2007 Annual Meeting and Food Expo. Monitoring the quality of water used for washing, ...

  • ZeroWater Comments on Water Quality Challenges Addressed by EPA

    Clean water is essential to human life and continuing health -- that is the reason that the Environmental Protection Agency proposed the Clean Water Act, which has helped improve national water quality for 40 years. With the anniversary in mind, EarthFix recently conducted an interview ...


  • California American Water’s 2012 Water Quality Reports Will Be Available Online This Year

    California American Water announced today that its 2012 Consumer Confidence Reports will be made exclusively available online and will not be mailed to customers as in previous years. Customers without access or who would like a hard copy can contact the company to receive a copy. Water customers wishing to view the 2012 report can do so by visiting ...


    By American Water

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