Calibration Services for Compliance & Accuracy

QCS started in 1974 as a balance calibration company, and we are still capable of servicing and calibrating any model of balance that you might be using in your lab, from the smallest 0.1 μg supermicrobalance up to 300 kg capacity platforms, from old favorite mechanical balances to the latest in electronic weighing technology.

Balances are tested for Eccentricity (Corner Loading), Linearity, Repeatability/Reproducibility, and Calibration Accuracy. Our technicians will fully service your balances and adjust them as necessary to make sure that they are meeting your weighing requirements.

Our calibration certificates can be tailored to meet special customer requirement. Examples include but are not limited to USP (U.S. Pharmacopeia) Chapter 41 (Pharmaceuticals) and ASTM D4753 (Soil, Rock, and Construction Materials Testing).

Calibration of balances at their point of use is optimal for accuracy. However, in unique situations where balances need to be calibrated at our facility (i.e. after a repair), we provide certificates with a comment that they were calibrated at QCS. Upon receiving a unit back at your own location after this type of service, it is recommended that you use a calibrated check weight to determine if the balance is ready for use or if onsite service will be necessary to better meet your requirements. We can walk you through this process if you’d like and we also sell and calibrate weights that will help if needed.

QCS has been calibrating scales as long as we have been calibrating balances. We are accredited up to 300 kg for Class I and II scales and up to 5000 lb for Class III scales.

Scales are tested for Shift (Corner Loading), Linearity, Repeatability, and Calibration Accuracy. Our technicians will fully service your scales and adjust them as necessary to make sure that they are meeting your weighing requirements.

Our calibration certificates can be tailored to meet special customer requirements. Examples include but are not limited to USP (U.S. Pharmacopeia) Chapter 41 (Pharmaceuticals) and ASTM D4753 (Soil, Rock, and Construction Materials Testing).

We are fully trained and capable of supporting scales used in Legal-for-Trade applications according to State and Federal rules. However, the laws regarding this type of service vary from state to state, so please let us know if this is a service you need, and we will make sure that you are covered appropriately.

Calibration of scales at their point of use is optimal for accuracy. However, in unique situations where scales need to be calibrated at our facility (i.e. after a repair), we provide certificates with a comment that they were calibrated at QCS. Upon receiving a unit back at your own location after this type of service, it is recommended that you use a calibrated check weight to determine if the scale is ready for use or if onsite service will be necessary to better meet your requirements. We can walk you through this process if you’d like and we also sell and calibrate weights that will help if needed.

Quality Control Services (QCS), Inc. is ISO 17025-2017 accredited for pipette calibration with the American Association for Laboratory Accreditation (A2LA) under Certificate 1550.01 (Certificate available here).

With over 20 years of pipette preventive maintenance and calibration expertise, QCS provides extensive calibration services that follow GMP/GLP, ISO guidelines, as well as meet the diverse laboratory requirements of our customers. Whether you’re in the Life Sciences, Bio-Tech, Pharmaceutical, Academia, or other fields; our calibration service offerings maximize bench time, while minimizing down-time.

• As found measurements on gravimetric balances
• Full pipette inspection & functional checks
• Liquid leak checks
• Preventive maintenance & repairs w/ manufacturer’s parts
• As left measurements on gravimetric balances
• Certificate of calibration and calibration sticker

As an ISO 17025-2017 accredited company, our trained service technicians are experts in the handling, preventive maintenance, calibration, and protective care of your pipettes. Our standards and documentation conform to ISO 9001, ISO 17025-2017, ANSI/NCSL Z540-101994 and ISO/IEC Guide 17025-2017. We calibrate pipettes to ISO 8655 tolerances, unless manufacturer’s tolerances are requested.

Remember, with routine preventive maintenance service and calibration, out of tolerance risks can be reduced considerably. To obtain more information or schedule calibration services please call 800-843-1237 or email pipetteservice@qc-services.com

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QCS can calibrate the weighing portion of all benchtop balance-based moisture analyzers, and the heating potion of most (with the exception of those that use microwave heating). Many moisture analyzers require special apparatuses for temperature measurement and/or adjustment, and QCS maintains a full inventory of up to date equipment to service most popular models.

Calibration of moisture analyzers at their point of use is optimal for accuracy. However, in unique situations where moisture analyzers need to be calibrated at our facility (i.e. after a repair), we provide certificates with a comment that they were calibrated at QCS. Upon receiving a unit back at your own location after this type of service, it is recommended that you use a calibrated check weight to determine if the moisture analyzer is ready for use or if onsite service will be necessary to better meet your requirements. We can walk you through this process if you’d like and we also sell and calibrate weights that will help if needed.

Our full-service accredited Metrology Laboratory is one of the leading labs in the Western United States and can calibrate any mass standard from 1 mg to 30 kg. Our Metrologist is fully trained at and certified by NIST (National Institute of Standards and Technology) in Advanced Mass Metrology and is ready to support the needs of your organization.

Weights must be sent to our Portland lab for calibration. This is not a service that is possible outside of a Metrology Laboratory.

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The QCS Thermometry Lab can calibrate both liquid and digital thermometers anywhere from -80 °C to 1000 °C as required. Infraed calibrations from -15°C to 500°C using Fluke precision calibrators. Specific test points will be tailored to thermometer limits and customer requirements.

Thermometers must be sent to our Portland laboratory. The precision thermometers and ultra-stable temperature environments necessary for this type of calibration are note available in the field.

QCS calibrated many types of laboratory and industrial temperature environments. Typical equipment would be Freezers, Refrigerators, Incubators, Water Baths, Autoclaves, Hot Plates, Furnaces, and Ovens. Our field service technicians carry a wide variety of probe types to accommodate many different situations, so be sure to ask if you do not see your equipment listed.

QCS can calibrate and map the face air velocity of any fume hood or clean bench. Air velocity Is measured via anemometer and air velocity is checked for compliance to workplace safety and/or manufacturer requirements. Maximum safe openings will be marked, but adjustments to actual air flow are typically the responsibility of the customer, and they impact and are impacted by overall HVAC performance. Biosafety cabinets can also be checked for air velocity, but QCS is not able to provide other service for these units such as filter replacement.

By necessity, these items or only checked in place in your laboratory. Even smaller portable fume hoods will vary significantly depending on air flow and pressure issues in the locations where they are used.

QCS calibrates the rotational speed of many types of laboratory equipment. Examples include centrifuges, shaker tables, and stirring units. Depending on the type of equipment and level of accuracy required, QCS can perform direct measurements with optical/contact tachometers or comparisons with a highly accurate stroboscope. Checks will be tailored to the attachments and speeds relevant to the work being performed on the units being tested.

QCS calibrates most benchtop and inline pH meters. pH probe/meter combinations are calibrated against accredited calibration buffers and where relevant, meters are checked independently with electronic pH simulators.

QCS calibrates most benchtop and inline conductivity meters. Conductivity probe/meter combinations are calibrated against accredited conductivity solutions.

QCS calibrates most benchtop and inline dissolved oxygen meters. DO probe/meter combinations are calibrated against accredited standard solutions. Most probes can be serviced and/or cleaned to improve longevity, but QCS will offer replacement DO probes or parts for many models if necessary.

QCS calibrates all benchtop and many inline turbidity meters manufactured by Hach, as well as select other models where appropriate standards are available. Meters are calibrated using industry standard formazin solution.