laboratory weighing Articles

  • TopAir’s Weighing Station

    TopAir is the flagship brand of Statitech Ltd., an ISO 9002 certified manufacturer of cleanroom products for the electronic, semi-conductor, biomedical and defense industries. Established in 1999 and ISO-9002 certified, Statitech Ltd. specializes in the development, production and marketing of a wide variety of standard and custom-made cleanroom products including a weighing station, and has ...


    By TopAir Systems

  • Updated White Paper Describes How Weighing on a Precision Balance is Faster and More Precise with SmartPan

    "Outstanding Weighing Performance Even Under Harsh Conditions", the recently updated White Paper from METTLER TOLEDO, explains how SmartPan™, a new design of weighing pan for precision balances or scales, permits a more precise stable weighing result to be achieved in half the time. An outstanding 86% improvement in precision and 50% increase in speed was recorded under the most extreme ...


    By Mettler - Toledo Int. Inc

  • Sample Handling Strategies for Accurate Lead-In-Soil Measurements in the Field and Laboratory

    ABSTRACT The inhomogenous lead-in-soil matrix can present serious obstacles to accurate sample collection and handling. In typical lead-in-soil measurement, particle size related errors in sampling and sample handling often exceed all other sources of error. The magnitude of error can vary widely depending on the particulate nature of the lead contaminant and the effectiveness of control ...

  • Procedure for calibration of micropipettors

    PURPOSE: Good Laboratory Practice dictates that all equipment used for the generation, measurement or assessment of data shall be adequately tested, calibrated and/or standardized. A procedure describing a pipettor calibration method, records of test performance and repairs should be available for laboratory personnel. This procedure describes a method for evaluating the accuracy and ...


  • New White Paper Describes How Verified Weight Identification Leads to Secure Traceable Balance Testing

    "Secure Traceability in Balance Testing - With Verified Weight Identification", the new White Paper from METTLER TOLEDO, explains how data entry errors and weight mix-ups can be avoided. WeightLink allows fast, secure balance testing with verified weight identification. Weights are the most important and most frequently used test equipment for the testing of balances. A ...


    By Mettler - Toledo Int. Inc

  • Recommendations for Implementing a Calibration Program

    Introduction This article is limited to the principles of organization for calibration work in relation to cGMP and other pharmaceutical standards. Calibration and metrology methods related to actual calibration techniques, statistics, and theories are not explored in our discussions.1 Each class of instruments requires specific techniques and approaches to achieve stated accuracies. All ...


    By Prime Technologies, Inc.

  • Net trophic transfer efficiencies of polychlorinated biphenyl congeners to lake trout (Salvelinus namaycush) from its prey

    Lake trout (Salvelinus namaycush) were fed bloater (Coregonus hoyi) in eight laboratory tanks over a 135‐d experiment. At the start of the experiment, four to nine fish in each tank were sacrificed, and the concentrations of 75 polychlorinated biphenyl (PCB) congeners within these fish were determined. Polychlorinated biphenyl congener concentrations were also determined in the 10 lake trout ...


    By John Wiley & Sons, Ltd.

  • New Automation Guide for Improved Titration Workflows

    Find valuable tips and tricks on how to optimize your titration workflows in the new METTLER TOLEDO Automation Guide. Download the Titration Automation Guide today and learn how titration processes can be automated for highest efficiency and security in the laboratory. Modern laboratories look into automation to address the demands for high throughput and variety of samples and workflows. ...


    By Mettler - Toledo Int. Inc

  • Is it time to upgrade the PM2.5 federal reference method?

    The fine particulate matter (PM2.5) Federal Reference Method (FRM) has in many respects been a great success. When the method was implemented, there was some doubt that the state and local monitoring agencies that routinely provide air quality data would be able to manage a program, which often distinguishes one location from another by just a few μg/m3. As it turns out, data from the FRM ...

  • How can I test the accuracy of my volumetric glassware?

    A huge range of tests in the laboratory require the use of volumetric glassware such as bulb or volumetric pipettes, volumetric flasks, ...


    By Camlab Limited

  • Detection of atrazine in fertilizers

    The Atrazine RaPID Assay, kit has been successfully applied to the determination of atrazine in fertilizer samples using the ollowing guidelines: 1. Weigh fertilizer into diluent. a) For each gram of fertilizer, use 10 mL of diluent. It is recommended that at least 1 g or up to 50 g of fertilizer be used to obtain a representative sample. b) As diluent use either a 50%(v/v) methanol: 50%(v/v) ...


  • Japanese Organics Recycling Association Formed

    Another backyard composting adage states that compost should have the feel of a wrung-out sponge — damp but not dripping wet. Actually, a wrung-out sponge may be on the dry side for composting, but the analogy does provide a great image for understanding the reasons for balancing moisture. Like a compost pile (or windrow or material in a vessel), a sponge is a solid mass containing an enormous ...


    By BioCycle Magazine

  • Quantitative analysis of Powdered solids case study

    Introduction Infrared quantitative analyses are an everyday requirement in the analytical laboratory. While liquid solutions are commonly analyzed, mixtures of powdered components also exist and often require quantitative analysis without dissolution into a solvent. This paper outlines the development of quantitative analysis methods for two powdered mixtures. The traditional ...


    By Specac Limited

  • Histocom medizin technik gains pipette valibration quality, speed and reliablity with METTLER TOLEDO

    Regular pipette calibration is essential in order to ensure accurate pipette performance, maintaining reliable results throughout its lifetime. Histocom Medizin Technik, based near Vienna, chose METTLER TOLEDO’s XP26PC and MCP to provide high quality, reliable and rapid pipette calibration services for its more than 100 laboratories. The accurate, reliable, timely and regulatory-compliant ...


    By Mettler - Toledo Int. Inc

  • Analysis of biogenic amines food and physiological samples

    Histamine and other polyamines such as Putrescine, Cadaverine, Spermidine and Spermine are products of decomposition. The level of histamine, in particular, has been used as a regulatory guideline for degree of decomposition in fish. Also, Histamine and Tyramine levels are of interest to producers of wine and cheese. The polyamines, Spermidine, Spermine and Putrescine are elevated in neoplastic ...


    By Pickering Laboratories, Inc.

  • LIMS Locates the Diamond in the Rough

    From the earliest days of digging into the earth for minerals, one question has been raised by all those seeking to make use of the materials the earth offers up:  what exactly have we dug up and is it what we hoped it would be?  Well we’re not panning for gold anymore and hoping for a glint of something shiny at the bottom of our pans, unless we hobbyists.  Modern ...

  • Knowing your A/A split from your elbow

    The term Total Petroleum Hydrocarbons (TPH) still remains poorly defined so that TPH data provided by laboratories is prone to disparity according to the analytical procedure undertaken, says Malcolm Avis of Chemtest. TPH data may be required for regulatory compliance, risk assessment, investigation or remediation. An appreciation of the methodology and terminology will ...


    By Newzeye Ltd

  • Instant Loss on Ignition Results for Trommel Fines

    Cost-effective compliance with landfill tax regimes Many issues have been raised with HMRC’s proposed Loss on Ignition (LOI) testing regime for landfill taxes, including concerns that tests will take too long to be actionable and will cost too much to perform with any regularity. This may indeed be true for samples sent to a laboratory, but there is an alternative: the ...


    By Arizona Instrument LLC

  • LIMS is the Anchor for Next-Gen Mining - News from MINExpo 2012

    Thermo Fisher Scientific, Inc. exhibited its Next-Gen Mining portfolio during MINExpo 2012 in Las Vegas, September 24-26. The company’s highly integrated range of instruments, equipment and consumables, anchored by its industry-leading laboratory information management systems (LIMS), is the only offering that addresses all segments of the mining process, from early stage exploration ...

  • InfraSpec VFA-IR Spectrometer for Biodiesel Blend Measurements

    Synopsis: Simple, yet powerful, filter-based IR spectrometers are ideal for compliance to the new ASTM 7861 test method for accurately measuring biodiesel blend ratios. The Wilks InfraSpec analyzer was the instrument used to develop and validate this method and thus is the industry standard for field measurement of FAME (Fatty Acid Methyl Ester) blend percentages. ...


    By Spectro Scientific

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