Laboratory Testing Articles

  • Recent Federal Developments - October 2017

    TSCA/FIFRA/TRI EPA Schedules PPDC Meeting: On October 13, 2017, the U.S. Environmental Protection Agency (EPA) announced the scheduling of a Pesticide Program Dialogue Committee (PPDC) meeting for November 1-2, 2017. 82 Fed. Reg. 47733. An agenda is expected to be made available by October 18, 2017.PPDC meetings provide the EPA Administrator with advice and information ...


    By Bergeson & Campbell, P.C.

  • Methods and guidance for testing the efficacy of antimicrobials against Spores of clostridium difficile

    On September 29, 2017, the U.S. Environmental Protection Agency (EPA) announced the availability of two final test method Standard Operating Procedures (SOP) for evaluating the efficacy of antimicrobials against spores of Clostridium difficile (C. diff):  EPA Microbiology Laboratory Branch (MLB) SOP MB-28: ...


    By Bergeson & Campbell, P.C.

  • Beyond Laboratory Research on White Rust and Passivation

    EVAPCO initiated an in-depth study to investigate the formation and control of white rust. This study, which began over three years ago, led to the development of industry-leading research equipment specifically designed to evaluate white rust formation on evaporative heat transfer surfaces. A small-scale closed circuit cooler was designed and built to replicate the dynamic conditions ...


    By Evapco Inc.

  • Waters 2017 Food Testing Application Notes Booklet

    Abstract / Summary Waters is a leader in developing food and water quality testing systems that incorporate analytical standards and reagents, sample preparation products, chromatographic columns, instrumentation, and data management software. Our comprehensive solutions offer food and beverage laboratories the tools needed to check compliance with food and ...


    By Waters Corporation

  • Permeation testing of flexible food packaging films - Case Study

    FFP Packaging Solutions specialise in high quality printed and plain flexible packaging, heat seal lidding films and films for high temperature/oven use. Offering the food industry innovative flexible packaging solutions, FFP ensure that all the film materials used have been vigorously tested to ensure that the quality of the packaging is stable when used in different environmental conditions ...


    By Systech Instruments Ltd

  • Testing modified atmosphere packaging of gluten free bakery products - Case Study

    Gluten free bakery packaging tested using Systech Illinois gas analysis equipment Ultrapharm’s quality control laboratory use the Gaspace Advance, oxygen and carbon dioxide headspace analyser to monitor their modified atmosphere packs at regular intervals. Ultrapharm Ltd started their gluten free bakery business in 1993, manufacturing a small product line to coeliac’s in the UK. ...


    By Systech Instruments Ltd

  • ANSI/AHRI standard 420-2008 for fan and coil evaporators - benefits and costs

    Abstract Fan and coil evaporators as used in the industrial refrigeration industry can be certified for performance per ANSI/AHRI Standard 420-2008, Performance Rating of Forced-Circulation Free-Delivery Unit Coolers for Refrigeration. This paper will explain how the standard works and illustrate the costs related to evaporators that may not meet the performance criteria of the standard. ...


    By Evapco Inc.

  • Laboratory test report - the effect of scale formation on heat transfer coils

    Background EVAPCO, Inc. recently introduced new Evaporative Condensers and Closed Circuit Coolers which utilize extended surface coils. For decades extended “fin” surfaces have been used on heat transfer coils, often referred to as “finned coils” primarily in an effort to increase dry capacity. However, in the past the fin material was limited to carbon steel tubes ...


    By Evapco Inc.

  • NSF/ANSI Standard 61: Certification vs. Compliance

    Brentwood is committed to delivering high-quality products and services to our customers and the water industry. For this reason, we have invested, and continue to invest, in ensuring our products are certified to the NSF/ANSI Standard 61 for water treatment and distribution applications. Certification Before a product can earn NSF certification, every aspect of its development is ...


    By Brentwood Industries, Inc.

  • Creep not a factor for Geocell load support

    An accurate understanding of creep resistance is essential to proper material selection when using polymers, and in the case of geocells, this science is being misapplied.  The definition of creep deformation is the tendency of a solid material to move slowly or deform permanently under the influence of mechanical stress.  Creep is something that creates fear and uncertainty with all ...


    By Presto Geosystems

  • Particle separation from road runoff by a decentralised lamella system – laboratory tests and experiences in the field

    A new decentralised settling system based on the principle of lamella separation was developed for the treatment of road runoff. Two different laboratory test methods, the DIBt (Deutsches Institut für Bautechnik) procedure and our own approach, were applied in order to evaluate the efficiency of the system based on the separation of fine mineral particles and a mixture of mineral and organic ...


    By IWA Publishing

  • Laboratory efficacy and field effectiveness of hollow fiber membrane microfilters used for household water treatment in Honduras

    The Sawyer PointONE™ hollow fiber membrane filter is increasingly promoted for long-term household water treatment in developing countries. Limited data demonstrate PointONE™ microbiological laboratory efficacy and short-term diarrheal disease reduction among users, but household microbiological data is lacking. To compare laboratory and household PointONE™ filter microbiological performance, ...


    By IWA Publishing

  • How HDXRF Helps Volcom Comply with Global Regulations - Case Study

    Volcom, Inc. is a lifestyle brand that designs, markets, and distributes high-quality boardsportsoriented products like clothing, footwear and accessories. As a global company, their restricted chemicals list is a combination and reflection of many international standards. CPSC and Proposition 65 lead the way for many of the chemicals’ lower limit regulations, but Canadian, Chinese, and ...


    By X-Ray Optical Systems (XOS)

  • Case study - SP Fire Laboratory, Sweden

    Fire laboratory at SP Borås uses EnviBat’s Wet Electrostatic Precipitator technology (WESP) since 2007. Extremely low emissions and high availability are key advantages. Project: WetESP for Fire Laboratory Many fire tests are made in full scale. Example for fire tests can be engine rooms, vehicles, store houses, compartments etc. Most of the tests will include ...


    By Envibat AB

  • Developing a Culture of Quality Through EQA

    From specimen collection to delivery of test results, laboratory testing must conform to the highest standards of quality: lives depend on it. Click the image below to read more from APHL. ...


    By Qualtrax Inc

  • NMS Laboratories Chooses Qualtrax

    National Medical Services, popularly known as NMS, has chosen Qualtrax as its Quality and Compliance Management Solution. NMS is a world leader in laboratory testing and services, offering testing across many different disciplines and fields. Qualtrax is proud to help them maintain ABFT, ASCLD/LAB International ISO/IEC 17025, CAP ISO 15189, CAP-LAP, and ...


    By Qualtrax Inc

  • Interlaboratory evaluation of the assessment of arsenic bioaccumulation from field collected sediments using Hexagenia spp. 

    Standardized bioaccumulation testing of aquatic organisms is essential to understanding the impact of historical contamination on the quality of water and sediment. A standardized 28‐day laboratory bioaccumulation method with a freshwater burrowing mayfly, Hexagenia spp., has been developed and internally validated by the Ontario Ministry of the Environment and Climate Change (MOECC). An ...


    By John Wiley & Sons, Ltd.

  • Satellite analysis to identify changes and drivers of CyanoHABs dynamics in Lake Taihu

    A long-term satellite-based analysis was performed to assess the impact of environmental factors on cyanobacterial harmful blooms (CyanoHABs) dynamics in a typical shallow lake, Lake Taihu. A sub-pixel approach (algae pixel-growing algorithm) was used with 13 years of MOderate-resolution Imaging Spectroradiometer (MODIS) data to evaluate changes in bloom extension, initiation date, duration, ...


    By IWA Publishing

  • Validation of a new standardized test method for the freshwater amphipod Hyalella azteca: Determining the chronic effects of silver in sediment

    Environment Canada has developed a new 42 day sediment toxicity test method that includes a reproduction test endpoint with the freshwater amphipod Hyalella azteca. Due to concerns that existing standard methodologies, where adults are transferred to a water‐only exposure before release of their first brood at day 28, will lead to internal contaminant depuration and loss of sensitivity, the EC ...


    By John Wiley & Sons, Ltd.

  • Matrix Gemini LIMS at work in a Health Screening Laboratory Case Study

    Eastern Deanery Aids Relief Program (Nairobi, Kenya) has improved data recording, speeded up sample throughput and allowed a direct link to existing electronic patient records by replacing its paper-based laboratory documentation system with Matrix Gemini LIMS. Background Eastern Deanery Aids Relief Program (EDARP) is a non-profit Christian faith-based organization which serves ...


    By Autoscribe Informatics

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you