Qal-Tek is a Radiation Safety company offering a broad array of products and services to protect workers, the public and the environment wherever radioactive materials are present. Established in 1998, we have become a leading service provider to the construction industry for our calibration and related radiation safety services.
- Nuclear density & moisture gauge calibration, repair, and sales
- Material testing equipment calibration and repair
- Radiation safety services:
- Leak testing
- Regulatory compliance support
- Gauge disposals
- Area radiation surveys
- Radiation survey meters
- Radiation survey meter calibration and repair
- Buy and sell reconditioned gauges
First ISO 17025 Accredited Nuclear Density Gauge Laboratory in the USA
Qal-Tek is proud to be the very first calibration company to be accredited to the ISO 17025 calibration standard for NDGs. This accomplishment reflects and validates our mission of continual improvement and striving for the highest quality standards.
3 Block Calibration
All of our three block fixed and mobile calibration labs meet the most current AASHTO T310 standards for the greatest accuracy. Our three block systems are recalibrated every five years as primary calibration reference blocks using NIST traceable devices. This method produces the most accurate calibrations possible. This is one reason our calibration services for portable nuclear density gauges have become the choice for over a thousand laboratories across the nation. Our ability to provide convenient, accurate, and affordable three block calibrations accredited by A2LA has become a trademark of Qal-Tek Associates.
Why 3 Block Calibrations Are Better
Studies by industry experts revealed high variances in NDG measurements when calibrated by the formerly accepted single block protocol. The revised AASHTO T310 standard now recommends a three-density point protocol that establishes a much more accurate calibration curve fit across all possible densities with an accuracy of ± 1 pcf (pounds per cubic foot).
While there are still those who perform single block verifications and calibrations, Qal-Tek has fully adopted the higher standard 3 block protocol per the latest industry standards to deliver the highest measurement integrity possible.
We Service Most Brands & Models
– 3411B – 5001 (all models) – MC1-DR – 3500
– 3430 – MC-3
– 3430 PLUS
– 3440 PLUS
Services We Perform
- Electrical & Mechanical Repairs
- Cleaning & Lubrication
- Parts & Accessories
- Scraper plate and rod replacements