Nuclear Density Gauge Calibration Services

Accurate density and moisture measurement is essential to reliable construction testing and quality control. Our national network of local calibration providers delivers the precision your nuclear density gauges rely on, supporting accurate results, regulatory compliance, and confidence in every measurement.

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Our Nuclear Gauge Calibration Services

Nuclear density gauges provide rapid, non-destructive measurement of soil compaction, asphalt density, and moisture content that ensures proper material placement and structural integrity. 

From highway construction and earthwork projects to building foundations and pavement operations, nuclear gauges enable real-time quality verification that keeps projects on schedule while meeting specification requirements. However, these sophisticated instruments containing radioactive sources require specialized calibration, maintenance, and regulatory compliance that demands expert knowledge and proper certification.

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Manufacturers we calibrate 

Our comprehensive nuclear density gauge calibration services support all major manufacturers and models used in construction testing, including:

CPN Nuclear Gauges: We provide complete calibration services for CPN (Campbell Pacific Nuclear) density gauges including the MC-3 Elite, MC-1 Elite, and legacy CPN models. Our technicians understand CPN gauge operation, electronics, and calibration requirements for accurate field testing and regulatory compliance.

Troxler Nuclear Gauges: Our calibration services support the complete line of Troxler gauges including the Model 3450, Model 3440, Model 3430, and older Troxler models. We maintain expertise in Troxler gauge technology and provide calibration that ensures reliable performance and compliance with manufacturer specifications.

Instrotek Nuclear Gauges: We calibrate Instrotek nuclear density gauges including current models and legacy instruments. Our services address Instrotek-specific features and ensure proper operation for construction quality control applications.

Humboldt Nuclear Gauges: Our calibration capabilities include Humboldt nuclear gauges and associated equipment. We provide comprehensive calibration services that support Humboldt gauge operation and regulatory compliance.

Comprehensive Calibration Services and Options


Complete Gauge Service and Maintenance
Our nuclear density gauge calibration provides comprehensive service beyond basic measurement verification. Each calibration includes:

Leak Testing: Required radiation safety testing that verifies sealed source integrity and prevents radioactive contamination. Leak testing meets NRC requirements and provides documentation for regulatory compliance and license maintenance.

Gauge and Case Cleaning: Thorough cleaning of gauge housing, measurement components, and transport case that removes field contamination, ensures proper operation, and maintains professional appearance for regulatory inspections and customer confidence.

Source Weld Inspection: Detailed visual inspection of radioactive source welds and shielding that identifies potential damage, wear, or degradation that could compromise source integrity or radiation safety.

Lubrication and Mechanical Service: Proper lubrication of moving parts, probe mechanisms, and locking systems that ensures smooth operation, prevents wear, and extends gauge service life under demanding field conditions.

Electronic Checkup and Adjustment: Comprehensive evaluation of measurement electronics, display systems, and control circuits with necessary adjustments and optimization that ensures accurate measurement and reliable gauge operation.

 

Calibration Block Options


3 Block Calibration: Standard calibration using three certified reference blocks that verify gauge accuracy across typical density ranges encountered in construction applications. This calibration option provides essential accuracy verification for routine construction quality control and regulatory compliance requirements.

5 Block Calibration: Enhanced calibration using five certified reference blocks that provides comprehensive accuracy verification across extended density ranges. This expanded calibration option ensures optimal accuracy for diverse materials, demanding applications, and projects requiring the highest measurement confidence.

Find Nuclear Density Gauge Calibration Services

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  • Accutek Lab

    Accutek Lab has been providing reliable and cost-effective pipette calibration services across the United States since 1996.

  • Aldinger

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

  • Cal-Cert

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

  • Cal-Labs

    Cal-Labs has provided quality calibration in Southern California since 1977. We are A2LA accredited to ISO 17025. 

  • Cal Tec Process Management

    The calibration specialists at CTPM have been providing precision calibration and quality assurance since 1987.

  • CMG Sales, Inc.

    CMG Sales, Inc. is a leading manufacturer sales representative and ISO 17025 accredited calibration laboratory providing services to manufacturers nationwide.

  • Color Calibration Group

    Color Calibration Group has been providing professional calibration services for all your color, light, and viscosity calibration needs for over 25 years.

  • ETI Precision

    ETI has been a leader in the calibration, repair, and sale of test and measurement equipment since 1994, and covers all 50 states.

  • Holts Precision, Inc.

    For over 60 years Holts Precision, Inc. has performed calibrations & repairs on all major brands of gaging equipment.

  • Huston-DePue

    Established in 1960, HDCL is staffed by experienced professionals who understand the critical role accurate measurement plays in quality control and regulatory compliance.

  • Instrument Technologies, Inc.

    For over three decades, Instrument Technologies, Inc. (ITI) has been a trusted partner for regulated industries seeking precision, compliance, and operational reliability.

  • IPM, Inc.

    Industrial Process Measurement, Inc. has been in the instrument supply, service and calibration business for over 30 years.

  • J & J Calibration Service

    J&J Calibration Service, an ISO-17025 accredited company, offers unmatched mobile calibration capabilities and laboratory calibration services.

  • OCS Technologies

    Founded in 1930, OCS Technologies is a trusted multi-discipline calibration service provider as well as leading product distributor.

  • OnCal

    With over 23 years of experience in pipette calibration in the Pacific Northwest, the OnCal Corporation guarantees seamless and dependable metrology services.

  • Polymer Testing Instruments

    Since 1996 Polymer Testing Instruments Inc. has provided high quality service and calibration of equipment for the rubber, plastics, and energy industries.

  • Precision Calibration Systems

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

  • Quality Control Services

    Quality Control Services is an established, accredited calibration services and laboratory equipment company with over 40 years of experience.

  • Quality Surveillance, Inc.

    QSI has been providing Los Angeles, Ventura, Santa Barbara and Santa Clarita Counties with reliable and cost effective metrology services since 1992.

  • Scale Service & Supply

    From laboratory balances to truck scales, Scale Service & Supply has been providing precision calibration for weighing systems since 1987. 

  • Tescom Calibration Services

    Tescom Calibration Services has provided sales, repair, and calibration of telecom test equipment since 1982.

  • Trident Calibration Labs

    Serving the greater Phoenix area, Trident Calibration Labs has more than 100 years of combined calibration experience.

  • Tru Cal International

    Serving as an asset to countless businesses in a variety of industries, Tru Cal International has specialized in test equipment calibration since 1992. 

  • Utah Scale Center

    Utah Scale Center offers servicing and calibrating of industrial scales across the Rocky Mountain Region, with 70+ years of experience.

  • Washington Calibration

    Washington Calibration has been providing customers with quality gage repair services for all their inspection measuring instruments for more than 34 years. 

Request a Calibration Service from the Accredited Labs Network

 

Audit-Ready Calibration in 3 Simple Steps

1

Submit Your Equipment List

Send us a list of the equipment you need calibrated, and we’ll provide a tailored quote with clear pricing—no hidden fees.

2

Schedule Your Calibration

Choose a convenient time for a mobile or on-site equipment calibration. Our certified technicians ensure precision and compliance with ISO/IEC 17025 standards.

3

Stay Compliant & Audit-Ready

Receive detailed calibration reports and certification, giving you peace of mind for audits and operational excellence.