Weights

Reference Materials

  • Reference Materialsreferencematerials

    Tolerance Chart

    Troemner's Tolerance Charts (Maximum Permissible Error) as determined by denomination and class.

    PDF - 455KB

  • Reference Materialsreferencematerials

    Uncertainty Chart

    Uncertainties for NVLAP Accredited Calibrations as determined by denomination and class.

    PDF - 160KB

  • Reference Materialsreferencematerials

    Certificate Options

    Certificates are designed to provide a range of choices in measurement precision, quality of data, and standards compliance.

    PDF - 85KB

  • Reference Materialsreferencematerials

    Calibration Laboratories

    Our Calibration System: our philosophy, facilities, personnel, equipment and standards.

    PDF - 304KB

  • Reference Materialsreferencematerials

    Selecting Weight Classes

    In order to select the appropriate weight for your laboratory, you must first determine exactly how you intend to use the weight.

    PDF - 151KB

  • Reference Materialsreferencematerials

    Weight Specifications

    Weights are manufactured to meet or exceed the highest tolerance standards for ANSI/ASTM, OIML and NIST.

    PDF - 60KB

Technical Papers

  • Technical Paperstechnicalpapers

    Cal-Paks & USP 41

    Troemner Cal-Paks™ are the ideal weight sets to meet the required revisions to USP 41.

    PDF - 2.8MB

  • Technical Paperstechnicalpapers

    Magnetic Susceptibility

    This report is a comparison of susceptibility results by three different laboratories.

    PDF - 2.8MB

  • Technical Paperstechnicalpapers

    Advantages of Alloy 8

    Troemner’s Alloy 8 Stainless Steel has extremely low magnetic properties and a more consistent density.

    PDF - 4.2MB

  • Technical Paperstechnicalpapers

    Calibration Intervals

    Determining the calibration interval requires examination of the weight over time and its processes.

    PDF - 3.5MB

  • Technical Paperstechnicalpapers

    Mass Magnetic Properties

    Using a susceptometer to determine the magnetic properties of a 1 kg mass standard.

    PDF - 2.5MB

  • Technical Paperstechnicalpapers

    Alloy 8 Material

    How to Distinguish Alloy 8 Stainless Steel Precision Weight Material

    PDF - 2.2MB

  • Technical Paperstechnicalpapers

    Cal-Paks

    Troemner’s Cal-Paks™ consist of the high quality precision mass standards with low measurement uncertainties.

    PDF - 2.6MB

  • Technical Paperstechnicalpapers

    NIST Handbook 105-1

    Specifications and Tolerances for Reference Standards and Field Standard Weights and Measures

    PDF - 277KB

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Literature

  • WC+A Catalogtechnicalpapers

    WC+A

    Weight Case and Accessory Catalog includes weight cases, custom carts, and weight accessories.

    PDF - 3.2MB

  • technicalpaperstechnicalpapers

    Weights & Accessories Catalog

    Comprehensive Weight Catalog includes our complete line of weight styles, cases and accessories.

    PDF - 3.9MB

  • Calibration Services Flip Guidetechnicalpapers

    Calibration Services Guide

    Complete Calibration Service information including laboratory scope, devices serviced, personnel and processes.

    PDF - 1MB

  • technicalpaperstechnicalpapers

    Weight Guide

    The Weight Guide offers an overview or our weight product offering. Also included are certificate options and descriptions.

    PDF - 2.2MB

  • Cal-Pak Sell Sheettechnicalpapers

    Cal-Pak Sell Sheet

    Complete Calibration Service information including laboratory scope, devices serviced, personnel and processes.

    PDF - 1MB

University of Troemner

  • troemnertroemner

    General Calibration

    Calibration training includes Troemner's accreditation, service levels and calibration procedures.

    PDF - 1.6MB

  • troemnertroemner

    Title of Troemner Paper

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    Type of file & size (RAR/ZIP) - 10MB

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    Type of file & size (RAR/ZIP) - 10MB

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    Title of Troemner Paper

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    Type of file & size (RAR/ZIP) - 10MB

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    Title of Troemner Paper

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    Type of file & size (RAR/ZIP) - 10MB

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    Title of Troemner Paper

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    Type of file & size (RAR/ZIP) - 10MB

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    Title of Troemner Paper

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    Type of file & size (RAR/ZIP) - 10MB

Press Releases

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Videos

FAQ's

  • faqView AnswerWhy do mass standards take more time to calibrate than most laboratory equipment?

    • For a proper calibration, weights need adequate time to establish and maintain a thermal equilibrium with the laboratory before any measurement can be done. One-piece weights take the longest time to calibrate - adjustments are made on a polishing wheel that generates heat and requires 4–8 hours to reestablish thermal equilibrium before any calibration/tolerance checks on a balance. A quality calibration can not just be performed in a matter of days and if someone tells you otherwise then they simply are not following good measurement practices and the quality of the calibration will be drastically inferior. In fact, it is our supposition that if this occurs you are not getting the service that you paid for and you are simply paying for a calibration sticker.
  • faq
  • View AnswerfaqI think my weight may be out of calibration, what should I do?

    • Check for contaminants, scratches, and discolorations. Be sure to look on the bottom of the weight, since occasionally matter attaches itself to the bottom and it may go unnoticed.
  • faq
  • View AnswerfaqHow can I determine balance error from weight error?

    • The weight error is the measured value correction plus its associated uncertainty (please refer to a Troemner NIST/NVLAP Weight Calibration Certificate for an example). You can use the weight to determine the balance error, but you can never use the balance to determine the weight error. This means that if you want to determine the weight error, you must have a mass standard with a certificate that enumerates the value correction plus its associated uncertainty or you must have another certified weight to make a comparison. If you want to determine the balance error, it is relatively easy if you have a certified mass standard with the aforementioned data. With this information you should know how the weight performs plus or minus its associated uncertainty value. Therefore, the balance error can be deduced by performing multiple measurements to see how well the balance executes a measurement. This, of course, can be recorded and tracked over time, so that a balance uncertainty can be ascertained as well.
  • faq
  • View AnswerfaqHow often should I have my weights calibrated? Why? Are there any regulations and/or standards pertaining to calibration intervals?

    • It is recommended that if you use your weights infrequently to moderately, you should have them recalibrated once a year. However, if your weights are used very frequently or several times a day, then you should have them calibrated once every six months. Although there are no standards or regulations that specifically address recalibration intervals, this is the industry norm in order to ensure that these standards are still within their specified tolerances. It is not unusual to see significant “as found” failure rates on those weights that are not recalibrated on an annual basis.
  • faq
  • View AnswerfaqWhat is accreditation and why should I select an accredited laboratory for my source of calibrations?

    • “Accreditation” is a formal recognition by an authoritative entity that an organization or individual is competent to carry out specific tasks. In the field of metrology, a third party such as NVLAP or A2LA, totally unaffiliated with the organization in question, ensures the calibration is being performed correctly by technically competent individuals. Accreditation translates to a cost savings in minimizing or eliminating the need for onsite visits by the customer. If your calibration service provider is not accredited, you are taking a risk with your quality control program.
  • faq
  • View AnswerfaqWhat is the difference between NVLAP (the National Voluntary Laboratory Accreditation Program) and A2LA?

    • The only real difference between these two organizations is that NVLAP is affiliated with the US National Institute of Standards and Technology (NIST) while A2LA resides in the private sector, however, both agencies audit to ISO/IEC 17025 (formally ISO Guide 25). Specific criteria that is covered by both organizations during an assessment include: equipment and environment, methods and procedures, validation of uncertainties, quality system and reviews, record keeping complaints, measurement, traceability, organization and staffing.
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Blog

  • blog

    Have you verified your balance?

    May 20, 2013

    Cal-Paks are supplied with 3 weights; the balance manufacturers recommended calibration weight, 10% of the calibration weight, and the minimum weight.

  • blog

    Custom Weight Carts

    May 30, 2013

    Troemner custom weight carts are made of stainless steel. Troemner offers two different styles of stainless steel carts.

  • blog

    TLC For Your Precision Weights

    July 1, 2013

    Have you recently purchased Troemner weights and want to know how to take care of them until you send them back for recalibration? We’re glad you asked…

  • blog

    Electronic Balance Weights

    August 1, 2013

    To get all the accuracy your electronic balance and/or scale provides, you need to perform routine calibrations and verifications using precision calibration weights.

  • blog

    Troemner Alloy 8 Stainless Steel

    May 30, 2013

    Troemner Alloy 8 is a unique material that possesses low magnetic susceptibility, uniform consistency and high resistance to corrosion.

  • blog

    Heavy-Duty Storage Cases

    June 4, 2013

    Troemner now offers tough, lightweight, rugged cases that are designed to protect your weights under any shipping circumstance.

  • blog

    Lean Manufacturing

    July 1, 2013

    Troemner’s version of Lean has helped maximize production by successfully identifying, removing, and preventing the re-occurrence of waste.

  • blog

    NVLAP Accredited Weight Calibration

    May 30, 2013

    Troemner’s Calibration Laboratories have the capability of providing weight calibrations from 0.050 mg through 2000 kg (0.00001 oz to 5000 lb).

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