Mass Standards and Lab Weights Calibration

SI-Traceable Calibration for Mass Standards and Lab Weights

Measuring the accurate weight of pre- and post-production components for pharmaceutical and biotechnology products is critical to ensuring manufacturing success, product efficacy and patient safety. Precise mass and weight measurements require strict calibration standards for complete confidence in your end products. With our highly experienced team and top-of-the-line equipment, Masy is proud to offer minimal measurement uncertainty for your sensitive metrology standards and laboratory instruments.

Masy’s mass standards and lab weights calibration services are industry-leading, making us the top choice among pharmaceutical and biotechnology companies worldwide. Our mass calibration service offers high-quality calibration uncertainties, traceable to the International System of Units (SI) through the National Institute of Standards and Technology (NIST) or other national metrology institutes.

Mass Calibration Capabilities

Our weight calibration range includes 1 mg to 303 kg, in accordance with OIML R-111 and ASTM E617. We calibrate your test weights to SI-traceable test weights to bring your instruments within the correct tolerances. Masy can support a wide variety of mass standards and lab weights including commercial weights, high precision weights and standard weights.

Weight and Mass Types

Commercial Weights

  • NIST Class F
  • ASTM Class 3,4,5,6, and 7
  • OIML Class M1, M2, and M3

High Precision Weights

  • ASTM Class 1 and 2
  • OIML Class F1 and F2

Standard Weights

  • OIML E1 and E2

Weight and Mass Manufacturers

  • Denver Instruments
  • Häfner
  • Mettler Toledo
  • Ohaus
  • Rice Lake
  • Sartorius
  • Troemner

Consistently Accurate Results

When you enhance the quality, accuracy and regulatory compliance of your mass and weight instruments, you improve the integrity of your end products. Masy reduces the threat of even the smallest inaccuracies, so you can have confidence in your mass and weight measurements. We work with you to find the solution that fits your needs, whether that’s calibrating a single device or a large inventory of mass and weight instruments.

Masy’s approach to mass and weight calibration is unlike any other calibration company. We use the highest quality equipment and implement industry-leading processes, which is part of what differentiates us. We also demonstrate our commitment to excellence and quality in the following ways:

  • All primary mass and weight standards are calibrated by NIST to ensure traceability and repeatability.
  • We use three sets of identical weights to ensure calibration accuracy, whereas many labs only use one or two weight sets.
  • Our lab operations are overseen by an experienced senior metrologist with years of experience.

Our 650ft2 Class 10,000 mass lab features robust climate control systems that exceed ISO Class 10k and NIST Echelon I standards for clean-room cleanliness and environmental controls. The state-of-the-art lab features a seismically isolated mass comparator platform and the highest-quality calibration standards. In addition, it is tightly controlled at 21.5°C (±0.5°C) and 40 % RH (± 5%) to further reduce measurement uncertainty. Masy monitors our lab conditions 24/7 and halts calibrations if conditions stray from your environmental specifications. We record the environmental conditions on each calibration certificate to build greater confidence in our calibration services.

Masy’s primary reference standards are traceable to the International System of Units (SI) through the National Institute of Standards and Technology (NIST) or other national metrology institutes, which allow us to provide optimal measurement accuracy. Many of Masy's primary reference standards are hand-carried to NIST for calibration and direct traceability. Our mass calibration process includes the use of three sets of identical weights to ensure calibration accuracy.

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