Fluid Calibration

Unrivaled Excellence in Fluid Calibration Services

Unmatched Expertise and Quality Assurance with over 50 years of industry experience and a team of 200+ certified technicians specializing in fluid calibration, Accredited Labs combines deep technical knowledge with cutting-edge technology. We manage over 10 million data points annually, ensuring unparalleled precision and reliability in every fluid calibration we perform.

Our calibration accuracy is guaranteed to within ±0.5% of readings for most fluid parameters, with a focus on achieving Test Uncertainty Ratios (TURs) greater than 5:1. This commitment to precision ensures reliable and reproducible results that significantly outpace industry standards, providing you with confidence in your fluid measurements and processes.

Our Comprehensive Fluid Calibration Services

At Accredited Labs, we deliver precise fluid calibration services, ensuring your equipment meets the highest standards of accuracy and reliability.

Accredited Labs offers comprehensive flow rate calibration services for both mass and volume, covering liquid mass flow rates from 0 to 4000 g/min with uncertainties as low as 0.17%, and liquid volume flow rates up to 300 L/min. We also specialize in pneumatic and hydraulic pressure calibration, offering precise calibrations from 0 to 15,000 psig, with additional expertise in vacuum calibration up to 30 inHg. Our capabilities extend to rotational speed calibration up to 99,999 RPM, viscosity calibration, density meter calibration, and pH meter calibration with uncertainties as low as ±0.02 pH units. We support a wide range of industry-leading brands, such as Endress & Hauser, Rosemount, and Brookfield Engineering, ensuring precision across fluid measurement and control applications.

Anemometer

Accredited Labs offers comprehensive calibration services for anemometers and wind speed indicators from various manufacturers, including Extech, TSI, Alnor, VWR, and Fisher Scientific. Anemometers are essential instruments used to measure wind speed and air velocity in various applications, such as HVAC systems, environmental monitoring, and industrial processes. Our state-of-the-art Westenberg Engineering Wind Tunnel enables us to perform ISO 17025 accredited air velocity calibrations with exceptional accuracy and precision. This advanced facility allows us to calibrate a wide range of instruments, including rotary and hot wire anemometers, balometers, and wind speed indicators, across an extensive range of 0.2 to 60 m/s (40 - 11,811 FPM). With an accuracy of less than 1.0 percent of reading, we achieve test uncertainty ratios (TURs) greater than 4:1, ensuring minimal customer risk and maximum confidence in measurement accuracy. Our calibration services help maintain the reliability and precision of your air velocity instruments, reducing measurement risk and ensuring compliance with industry standards.

Conductivity Meter

Accredited Labs offers comprehensive calibration services for Conductivity Meters from various manufacturers, including Myron L Company, Endress & Hauser, Hm Digital, National Instruments Corporation, Oakton, and Aqua-Lab. Conductivity Meters are essential instruments used to measure the electrical conductivity of liquids, which is crucial in water quality testing, industrial processes, and environmental monitoring. Our calibration process ensures these devices accurately measure the ability of a solution to conduct electricity by comparing their readings against certified reference standards. We utilize precise methods to verify and adjust the meter's performance across its operational range, guaranteeing reliable and traceable measurements for our customers' critical applications.

Dispenser

Accredited Labs offers comprehensive calibration services for dispensers, essential laboratory instruments used for precise liquid volume measurement and transfer. We calibrate a wide range of dispenser models from leading manufacturers, including Fisher Brand Inc., VWR International, Rainin Instruments, LLC, Microlit, and Eppendorf Research Plus. Dispensers are crucial in various scientific and industrial applications where accurate fluid dispensing is critical. Our calibration process involves verifying and adjusting the dispenser's accuracy and precision across multiple volume settings using gravimetric analysis. We ensure that each dispenser meets or exceeds manufacturer specifications and industry standards, providing our clients with reliable and traceable results for their liquid handling needs.

Flask

Accredited Labs offers precision calibration services for flasks from leading manufacturers such as Pyrex, Fisher Brand Inc., and National Instruments Corporation. Flasks are essential volumetric glassware used in laboratories for measuring, mixing, and storing liquids with high accuracy. Our calibration process ensures these vessels maintain their specified volume capacity, crucial for reliable experimental results and quality control in various scientific and industrial applications. We utilize gravimetric methods to verify and adjust flask volumes, comparing the mass of distilled water contained in the flask to its theoretical mass at a given temperature. This meticulous process guarantees that your flasks meet industry standards and regulatory requirements, providing you with confidence in your measurements and experimental outcomes.

Flow Meter (gas)

Accredited Labs offers professional calibration services for gas flow meters from leading manufacturers such as TSI Incorporated, Matheson, Fluid Components International, Lincoln Electric, and Omega Engineering. Gas flow meters are precision instruments used to measure the volume or mass flow rate of gases in various industrial, research, and commercial applications. Our calibration process ensures the accuracy and reliability of these devices by comparing their measurements against traceable standards. We utilize state-of-the-art equipment and follow industry-approved methodologies to calibrate gas flow meters across a wide range of flow rates and gas types. Our expert technicians perform comprehensive assessments, adjustments, and documentation to maintain your equipment's performance and compliance with relevant standards.

Flow Meter (liquid)

Accredited Labs offers comprehensive calibration services for liquid flow meters from leading manufacturers like Endress & Hauser, Anderson Calibration Services, Micro Motion, Rosemount, and ABB. Flow meters are essential instruments used to measure the volume or mass flow rate of liquids in various industrial applications, ensuring accuracy and efficiency in processes. Our calibration process involves comparing the flow meter's output to a known reference standard, adjusting for any deviations, and providing a detailed calibration certificate. We utilize advanced techniques such as gravimetric or volumetric methods, depending on the meter type and required accuracy. Our expert technicians ensure your flow meters maintain optimal performance, comply with industry standards, and deliver reliable measurements crucial for quality control and regulatory compliance.

Gas Detector-Safety

Accredited Labs provides expert calibration services for Gas Detector-Safety equipment, essential devices used to detect the presence of hazardous gases in various environments. These detectors are crucial for maintaining workplace safety and preventing potential accidents or health hazards. Our calibration process ensures the accuracy and reliability of gas detectors from leading manufacturers such as Bacharach Company, MSA Safety Incorporated, BW Technologies by Honeywell, Vaisala, and Honeywell International Inc. Our technicians use precise methods to verify and adjust the detectors' sensors, alarms, and measurement ranges, guaranteeing they respond correctly to specific gas concentrations. By choosing Accredited Labs for your gas detector calibration needs, you can be confident that your safety equipment meets industry standards and regulations.

Hydrometer

Accredited Labs offers professional calibration services for hydrometers from various manufacturers, including Fisher Brand Inc., Fisher Scientific Company, and Fischer Measurement Technologies. A hydrometer is a precision instrument used to measure the specific gravity or relative density of liquids. It is commonly employed in industries such as brewing, winemaking, and chemical processing to determine the concentration of solutions. Our calibration process ensures the accuracy and reliability of your hydrometer by comparing its readings to known reference standards across multiple measurement points. This calibration is crucial for maintaining quality control and compliance with industry regulations. Trust Accredited Labs to provide expert calibration services that guarantee the precision of your hydrometer measurements.

pH Meter

Accredited Labs offers professional calibration services for pH meters from leading manufacturers such as Thermo Fisher Scientific, Oakton, Hanna Instruments, Fisher Scientific Company, and Mettler Toledo. A pH meter is a precision instrument used to measure the acidity or alkalinity of a solution by determining its hydrogen ion concentration. It typically consists of two electrodes (often a glass electrode and a calomel reference electrode, or a combination electrode) that measure the electrical potential difference in the solution. This potential is then converted and displayed as a pH value on an analog or digital readout. Our calibration process ensures the accuracy and reliability of pH meters across various industries, including research, environmental monitoring, and quality control. We use traceable buffer solutions and rigorous procedures to verify and adjust the meter's performance, guaranteeing precise measurements for our clients' critical applications.

Pipettes

Accredited Labs offers comprehensive calibration services for pipettes, essential laboratory instruments used for precise liquid handling in research, medical, and industrial settings. We calibrate a wide range of pipettes from leading manufacturers, including Eppendorf Research Plus, Thermo Fisher Scientific, Rainin Instruments, LLC, Gilson, and VWR International. Our calibration process ensures pipettes deliver accurate and consistent volumes, typically ranging from 0.1 µL to 10 mL. We use gravimetric methods, employing high-precision balances and ISO 8655-compliant procedures to verify volumetric accuracy, precision, and linearity across multiple test points. Our calibration service helps maintain pipette performance, ensuring reliable results in critical applications and compliance with regulatory requirements.

Refractometer

Accredited Labs offers comprehensive calibration services for refractometers from leading manufacturers such as Atago, Reichert, Misco, Stanley, Anton Paar, and Hanna Instruments. Refractometers are precision optical instruments used to measure the refractive index of liquids, which is essential for determining concentration, purity, and quality in various industries including food and beverage, pharmaceuticals, and chemical processing. Our expert technicians calibrate refractometers using traceable reference materials and state-of-the-art equipment to ensure accuracy across a wide range of scales, including Brix, refractive index, and specific gravity. We verify the instrument's performance against known standards, make necessary adjustments, and provide detailed calibration certificates to meet your quality assurance requirements and regulatory compliance needs.

Sieve

Accredited Labs offers professional calibration services for sieves from leading manufacturers such as VWR International, Cole Parmer Instrument Company, and Fisher Scientific Company. Sieves are essential tools used in various industries for particle size analysis and material separation. These devices consist of a frame holding a mesh or perforated plate with precisely sized openings. Our calibration process ensures the accuracy of sieve openings and overall dimensions, typically involving visual inspection, measurement of mesh openings using certified measuring instruments, and verification against standard reference materials. Proper calibration of sieves is crucial for maintaining product quality, consistency, and compliance with industry standards in applications ranging from pharmaceutical manufacturing to soil analysis.

Spectrophotometer

Accredited Labs offers professional calibration services for spectrophotometers from leading manufacturers such as Thermo Fisher Scientific, Fisher Scientific Company, Hach Company, X-Rite, and Eppendorf Research Plus. Spectrophotometers are essential analytical instruments used to measure the intensity of light absorbed by a sample at specific wavelengths. These devices are crucial in various industries, including pharmaceuticals, chemistry, and environmental sciences. Our calibration process ensures the accuracy and reliability of your spectrophotometer by verifying its wavelength accuracy, photometric accuracy, and stray light performance. We use NIST-traceable standards and follow industry-accepted procedures to calibrate your equipment, helping you maintain compliance with regulatory requirements and ensuring consistent, high-quality results in your laboratory operations.

Viscometer

Accredited Labs offers comprehensive calibration services for viscometers, instruments used to measure fluid viscosity across various industries. We calibrate viscometers from leading manufacturers, including Brookfield Engineering Laboratories, Inc., Byk Instruments, Anton Paar, Pacific Scientific Inc., and Cole Parmer Instrument Company. Viscometers operate on two main principles: either an object moves through a stationary fluid or the fluid moves past a stationary object, with the resulting drag used to determine viscosity. Our expert technicians calibrate these instruments by comparing their measurements against traceable reference standards, ensuring accuracy and reliability across a range of viscosities and temperatures. This calibration is crucial for maintaining quality control in industries such as food processing, pharmaceuticals, and petrochemicals. Trust Accredited Labs to deliver precise, manufacturer-specific calibration services for your viscometer needs.

Viscosity Cup

Accredited Labs provides calibration services for viscosity cups from leading manufacturers such as Gardco, Elcometer, Byk Instruments, Fisher Scientific, Koehler Instrument Company, and Avery Weigh Tronix. Viscosity cups, also known as flow cups, are precision instruments used to measure the viscosity of liquids, particularly in the paint, coating, and oil industries. These cups have a specific orifice size and volume, allowing for consistent measurements of fluid flow time. Our calibration process ensures the cup's accuracy by verifying its dimensions, volume, and orifice size against traceable standards. This calibration is crucial for maintaining quality control and ensuring accurate viscosity measurements in various industrial applications.

Weight Per Gallon Cup

Accredited Labs offers calibration services for Weight Per Gallon Cups, including those manufactured by Gardco. These precision instruments are used to determine the density or specific gravity of liquids by measuring a known volume and weighing it. Commonly used in paint, coating, and ink industries, Weight Per Gallon Cups ensure consistent product quality and compliance with industry standards. Our calibration process involves verifying the cup's volume accuracy using traceable measurement standards and assessing its weight measurement precision. We employ gravimetric techniques and compare results to reference values to ensure the cup provides reliable density measurements. Our calibration service helps maintain the accuracy of your Weight Per Gallon Cups, supporting quality control processes and regulatory compliance in your operations.

Service Quality

Top-Quality Calibration with Local Commitment

At Accredited Labs, we pride ourselves on delivering top-quality services. Our advanced calibration solutions, customer-centric approach, and local expertise ensure precision, compliance, and satisfaction.

ISO 17025 Accredited Calibration

ISO 17025 accreditation ensures accurate and reliable results with full traceability.

Unmatched Calibration Range

Offering the broadest range of calibration services, ensuring all your needs are met with precision.

Fast Turnaround Times

We understand the importance of minimizing downtime. Our quick turnaround times get your equipment back in action fast.

Highly Skilled Technicians

Our experts bring extensive industry experience and continuous training to every service.

ISO 17025 Accredited Calibration

ISO 17025 accreditation ensures accurate and reliable results with full traceability.

Unmatched Calibration Range

Offering the broadest range of calibration services, ensuring all your needs are met with precision.

Fast Turnaround Times

We understand the importance of minimizing downtime. Our quick turnaround times get your equipment back in action fast.

Highly Skilled Technicians

Our experts bring extensive industry experience and continuous training to every service.

Service Delivery

Our Nationwide Calibration Network

Accredited Labs operates a network of top-tier calibration service providers across the nation, ensuring high-quality, reliable, and efficient calibration services. Our local branches, operating under well-known regional brands, deliver tailored solutions to meet the specific needs of our customers.

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Dallas, TX

Aldinger

Since 1972, we have been providing top-quality calibration services for test and measurement equipment in Texas and beyond.

Houston, TX

Aldinger

Since 1972, we have been providing top-quality calibration services for test and measurement equipment in Texas and beyond.

Little Rock, AR

Aldinger

Since 1972, we have been providing top-quality calibration services for test and measurement equipment in Texas and beyond.

San Antonio, TX

Aldinger

Since 1972, we have been providing top-quality calibration services for test and measurement equipment in Texas and beyond.

La Mirada, CA

Cal Labs

Cal-Labs has provided quality calibration in So California since 1977. We are A2LA accredited to ISO 17025. We calibrate dimensional equipment.

Beavercreek, OH

Cal Tec PM

Calibration Specialists with expertise in Quality Assurance, Manufacturing, Construction and Inspection.

Anaheim Hills, CA

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Milwaukie, OR

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Boise, ID

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Brooklyn Park, MN

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Turner, OR

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Happy Valley, OR

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Yacolt, WA

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Vancouver, WA

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Seattle, WA

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Lynden, WA

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Clackamas, OR

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Portland, OR

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Herriman, UT

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Longmont, CO

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Denver, CO

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Griffin, GA

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Rockford, IL

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Ironstation, NC

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Hayesville, NC

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Pleasant View, TN

Cal-Cert

Cal-Cert is committed to providing the highest level of calibrations and certification service to our customers.

Oklahoma City, OK

HDCL

Welcome to Huston-DePue Calibration Laboratories (HDCL), an A2LA accredited metrology company.

Boise, ID

ITI

Accredited calibration services. On-site calibrations, lab calibrations, validation and temperature mapping for industrial and pharmaceutical industries.

Seattle, WA

ITI

Accredited calibration services. On-site calibrations, lab calibrations, validation and temperature mapping for industrial and pharmaceutical industries.

Walcott, ND

J&J Calibration Service

J&J Calibration Service, an ISO-17025 accredited company, offers unmatched MOBILE CALIBRATION CAPABILITIES and laboratory calibration services.

Brookings, SD

J&J Calibration Service

J&J Calibration Service, an ISO-17025 accredited company, offers unmatched MOBILE CALIBRATION CAPABILITIES and laboratory calibration services.

Casper, WY

J&J Calibration Service

J&J Calibration Service, an ISO-17025 accredited company, offers unmatched MOBILE CALIBRATION CAPABILITIES and laboratory calibration services.

Fargo, ND

J&J Calibration Service

J&J Calibration Service, an ISO-17025 accredited company, offers unmatched MOBILE CALIBRATION CAPABILITIES and laboratory calibration services.

Cleveland, OH

OCS

Calibration Services at OCS. Calibration Services by OCS are ISO/IEC 17025 accredited by the ANAB ANSI Accreditation Board.

Seattle, WA

OnCal

We focus on the preventive maintenance procedures for each brand of pipette to help ensure that they maintain calibration between service intervals.

Cookeville, TN

PCS

We are a full-service ISO 17025 Accredited calibration laboratory, founded with the goal of providing reliable and accurate instrument calibration service.

Morristown, TN

PCS

We are a full-service ISO 17025 Accredited calibration laboratory, founded with the goal of providing reliable and accurate instrument calibration service.

Winchester, TN

PCS

We are a full-service ISO 17025 Accredited calibration laboratory, founded with the goal of providing reliable and accurate instrument calibration service.

Huntsville, AL

PCS

We are a full-service ISO 17025 Accredited calibration laboratory, founded with the goal of providing reliable and accurate instrument calibration service.

Portland, OR

QCS

QCS has over 50 years experience in calibration, service and repair of all makes and models of precision balances.

Wayland, MI

Servo Innovations

Servo Innovations carries the rigorous A2LA ISO 17025 accreditation which is considered the gold standard for a testing/calibration lab.

Cedar Park, TX

Tescom

Tescom Calibration provides sales, repair, and calibration of telecom test equipment, plug-in cards and all of your instruments.

San Antonio, TX

Tescom

Tescom Calibration provides sales, repair, and calibration of telecom test equipment, plug-in cards and all of your instruments.

Sandy, UT

Utah Scale

Utah Scale Center specializes in providing quality scales & calibration services for your personal and business needs.

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All Locations

Dallas, TX
Houston, TX
Little Rock, AR
San Antonio, TX
La Mirada, CA
Beavercreek, OH
Anaheim Hills, CA
Milwaukie, OR
Boise, ID
Brooklyn Park, MN
Turner, OR
Happy Valley, OR
Yacolt, WA
Vancouver, WA
Seattle, WA
Lynden, WA
Clackamas, OR
Portland, OR
Herriman, UT
Longmont, CO
Denver, CO
Griffin, GA
Rockford, IL
Ironstation, NC
Hayesville, NC
Pleasant View, TN
Oklahoma City, OK
Walcott, ND
Brookings, SD
Casper, WY
Fargo, ND
Cleveland, OH
Cookeville, TN
Morristown, TN
Winchester, TN
Huntsville, AL
Wayland, MI
Cedar Park, TX
Sandy, UT

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All companies

Aldinger
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ITI
J&J Calibration Service
OCS
OnCal
PCS
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Servo Innovations
Tescom
Utah Scale

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Frequently Asked Questions

Find answers to common questions about our calibration and repair services, helping you understand how we maintain industry standards and ensure reliability.

What types of calibration services do you offer?

We offer a comprehensive range of calibration services, including mass, temperature, dimensional, force-torque, fluid, pressure, electronics, and specialty calibrations, ensuring your equipment meets stringent industry standards.

How often should I calibrate my equipment?

The frequency of calibration depends on the type of equipment and industry regulations. Typically, annual calibration is recommended, but certain industries may require more frequent checks to ensure accuracy and compliance.

What industries do you serve?

We serve a wide variety of industries, including general manufacturing, pharmaceuticals, aerospace, electronics, automotive, and more, providing tailored calibration and repair services to meet specific industry requirements and regulations.

How do I schedule a calibration or repair service?

You can schedule a service by visiting our website and filling out the request form, or by contacting our customer service team directly. We offer flexible scheduling to accommodate your needs.

What is the turnaround time for calibration services?

Our standard turnaround time for calibration services is typically 5-7 business days. Expedited services are available upon request to meet urgent needs and minimize downtime.

Do you offer on-site calibration services?

Yes, we offer on-site calibration services to provide convenience and reduce equipment downtime. Our technicians will come to your location and perform the necessary calibrations and repairs on-site.

Which accreditation body do you use?

We are accredited by the American Association for Laboratory Accreditation (A2LA), ensuring our services meet the highest standards of quality and compliance.

Where can I find your scope documents?

Our scope documents detailing the specific capabilities and standards we adhere to can be found on our website under the "Accreditation" section. These documents provide comprehensive information on the types of calibrations and measurements we are accredited to perform.

What does it mean to be A2LA accredited?

Being A2LA accredited means our laboratory has been independently assessed and meets the rigorous standards set by the American Association for Laboratory Accreditation. This accreditation ensures our calibration services are reliable, accurate, and comply with international standards.

Why is accreditation important for calibration services?

Accreditation is important because it provides assurance that our calibration services meet internationally recognized standards. It ensures the accuracy and reliability of our measurements, which is crucial for maintaining the quality and compliance of your equipment.