Mass Calibration Services
Michelli provides standard traceable and ISO/IEC 17025 accredited mass calibration services for test weights, Class F weights, ASTM weights, metric weights, and analytical mass standards used to verify scales, balances, and precision measurement equipment.
Mass Calibration Built for Traceable Test Weights and Reliable Measurements
Test weights are used to verify scales, lab balances, and other measurement equipment. If the weight used for verification is out of tolerance, the measurement results that depend on it can become unreliable.
Michelli calibrates a wide range of test weights and mass standards, including equipment purchased from other suppliers. Service options may include standard traceable calibration, ISO/IEC 17025 accredited calibration, on-site service for applicable weights, in-lab calibration, and documentation based on the weight class, size, use, and required scope.
Test Weight Calibration
Calibration for Class F, ASTM, avoirdupois, metric, and analytical mass standards.
Scale and Balance Support
Calibrated weights help support accuracy checks for scales, balances, and precision measurement devices.
Traceable Documentation
Calibration documentation is available to support quality systems, audits, and regulated measurement programs.
What Is Mass Measurement?
Mass measurement is used to determine the amount of matter in an object. In calibration programs, mass standards and test weights are used as known references for checking scales, laboratory balances, and other weighing equipment.
Mass calibration refers to the calibration of test weights or mass standards. When a test weight is calibrated, its value is compared against an appropriate traceable standard to confirm whether it remains within the required tolerance for its class and intended use.
Quality Control
Test weights help quality teams verify lab balances, scales, and inspection equipment.
Scale and Balance Checks
Calibrated weights support routine accuracy checks between scheduled service visits.
Traceability Programs
Documented mass calibration helps maintain traceability for measurement and audit needs.
What Does Mass Calibration Entail?
Mass calibration compares a test weight against an appropriate traceable mass standard. The goal is to confirm that the weight value remains within tolerance for its class, size, and intended application.
If a weight is found out of tolerance, adjustment may be available depending on the weight type, construction, condition, and calibration scope. Once calibration is complete, documentation can be provided for quality, audit, and traceability requirements.
Compare
Weights are compared against appropriate traceable mass standards.
Evaluate
Results are reviewed against the required tolerance for the weight class.
Adjust
Adjustment may be performed when available and appropriate for the weight.
Document
Calibration results can be documented for traceability and quality records.
Mass Calibration Service Options
Michelli can help determine the appropriate calibration path based on your test weights, class, application, quality system, and documentation requirements.
Standard Traceable Mass Calibration
Standard traceable mass calibration is available for many test weights and may be appropriate when a customer needs documented calibration traceable to recognized measurement standards.
Available for many common test weights and mass standards
Useful for routine quality and maintenance programs
Available on-site or in Michelli laboratories depending on weight and scope
ISO/IEC 17025 Accredited Mass Calibration
ISO/IEC 17025 accredited mass calibration is available for applicable weights and scopes when accredited documentation is required by customers, regulations, audits, or quality systems.
Available for applicable weights within accredited scope
Performed in ISO 17025 Accredited calibration laboratories
Scope of accreditation should be reviewed for specific weights
On-Site Mass Calibration
Standard mass calibration may be available on-site for applicable test weights. On-site service can help reduce shipping needs and support weights used in plant, scale, and maintenance programs.
Available depending on weight type, location, and service scope
Helpful for larger weights and operational calibration programs
Contact your nearest Michelli location to confirm availability
In-Lab Mass Calibration
In-lab mass calibration may be recommended or required for weights that need controlled environmental conditions, accredited calibration, lower measurement uncertainty, or specialized handling.
Required for ISO/IEC 17025 accredited mass calibration
Recommended for analytical mass and tighter tolerance weights
Equipment lists can help streamline intake and service planning
Mass Standards and Test Weights Michelli Can Calibrate
Michelli offers mass calibration services for a broad range of avoirdupois weights, metric weights, Class F test weights, ASTM class weights, and analytical mass standards.
Avoirdupois Test Weights
- Avoirdupois Weight, NIST Class F
- Avoirdupois Weight, ASTM Class 6
- Avoirdupois Weight, ASTM Class 5
- Avoirdupois Weight, ASTM Class 4
- Avoirdupois Weight, ASTM Class 3
- Avoirdupois Weight, ASTM Class 2
- Avoirdupois Weight, ASTM Class 1
- Avoirdupois Weight, ASTM Class 0
Metric Test Weights
- Metric Weight, NIST Class F
- Metric Weight, ASTM Class 6
- Metric Weight, ASTM Class 5
- Metric Weight, ASTM Class 4
- Metric Weight, ASTM Class 3
- Metric Weight, ASTM Class 2
- Metric Weight, ASTM Class 1
- Metric Weight, ASTM Class 0
Analytical Mass Standards
- Class F analytical mass
- Analytical mass from 1 milligram to 1 kilogram
- Small precision weights
- Laboratory balance check weights
- Weights used for quality control checks
- Weights used for precision measurement devices
Class F Test Weights
- Class F test weights up to 50 lbs
- Class F test weights up to 30 kg
- Weights used for scale checks
- Weights used in industrial service programs
- Weights used by maintenance and quality teams
- Weights used for weighing equipment verification
Quality Program Weights
- Weights used for internal checks
- Weights used for audit documentation
- Weights used for ISO quality programs
- Weights used for preventive maintenance checks
- Weights used to verify balances and scales
- Weights purchased from Michelli or other suppliers
Ship-In Weight Calibration
- Portable weights that can be shipped or dropped off
- Equipment lists for multi-weight submissions
- Service planning for multiple weight sets
- Documentation matched to service requirements
- Nearest-location support for intake and return
- Guidance on standard vs accredited calibration
Mass Calibration Documentation and Certificates
Mass calibration documentation may include calibration results, traceability information, weight identification, standards used, and other details based on the selected service scope.
Michelli can help determine whether standard traceable calibration or ISO/IEC 17025 accredited calibration is the right fit for your test weights, quality program, or audit requirements.
ISO 9001 Registered with ISO 17025 Accredited Calibration Laboratories
Mass calibration services may be available under standard traceable or ISO/IEC 17025 accredited scopes depending on the weight and calibration requirements.
- Standard traceable documentation available
- ISO/IEC 17025 accredited calibration available for applicable scopes
- Scope review recommended for specific weights
- Documentation for quality systems and audits
On-Site, In-Lab and Ship-In Mass Calibration Support
Standard mass calibration may be available on-site or in Michelli laboratories depending on the weights and service requirements. ISO/IEC 17025 accredited mass calibration is performed in ISO 17025 Accredited calibration laboratories.
If you have multiple weights, an equipment list can help Michelli review the weight classes, sizes, quantities, and documentation requirements before scheduling service.
On-Site Standard Calibration
Available for applicable weights depending on location, weight class, and service scope.
Ship-In Calibration
Portable weights may be shipped with an equipment list to help streamline intake and service planning.
Accredited Laboratory Calibration
ISO/IEC 17025 accredited mass calibration is available in accredited calibration laboratories for applicable scopes.
MASS CALIBRATION
Ready to Schedule Mass Calibration?
Tell us about your test weights, required calibration type, documentation needs, and location. A Michelli specialist can help determine the appropriate calibration path.
Helpful details to include:
- Weight class
- Weight size and quantity
- Standard or accredited service
- On-site or lab preference
- Equipment list
- Documentation requirements
Request Mass Calibration
Complete the form and a Michelli specialist can follow up about your mass calibration needs.
Related Calibration Services
Mass calibration often connects with weighing equipment, laboratory balances, and scale calibration programs. Michelli can help determine the right service path for each item in your program.
Lab Balance Calibration
Calibration for analytical balances, top loading balances, microbalances, semi-micro balances, and laboratory weighing equipment.
Scale Calibration
Calibration services for bench scales, floor scales, truck scales, rail scales, counting scales, tank scales, and other weighing equipment.
Physical / Dimensional Calibration
Calibration for dimensional tools, gauges, surface plates, indicators, calipers, micrometers, and related precision instruments.