The Applied Technical Services Family of Companies (ATS FoC) provides ASTM C1202 testing to evaluate concrete’s resistance to chloride ion penetration.
Why is ASTM C1202 Important to Construction ?
ASTM C1202, or the Rapid Chloride Permeability Test (RCPT), measures the ease with which chloride ions pass through concrete. A saturated disk specimen, typically 100 mm in diameter and 50 mm thick, is sealed at the edge to direct current through its faces. The specimen is placed between two reservoirs, one containing a chloride solution and the other an alkaline solution, and a constant DC voltage is applied. Current is recorded over six hours to calculate the total charge passed in coulombs. ASTM C1202 results help construction teams and contractors:
- Evaluate concrete mix designs
- Characterize concrete durability
- Determine corrosion risk in concrete
- Make informed decisions for structures exposed to marine environments or deicing salts
Our ASTM C1202 Testing Capabilities
Our ISO/IEC 17025 and AASHTO-accredited laboratory conducts ASTM C1202 testing to quantify electrical conductance and estimate chloride-ion penetrability for durability assessment and quality control. We manage specimen preparation and conditioning, perform the six-hour 60 V DC test, record current, and calculate total charge passed in coulombs. Results are interpreted using standard permeability classifications to identify potential durability risks, such as chloride ingress and corrosion susceptibility. Each report includes raw data, calculated values, interpretive commentary, recommended next steps, and options for expedited turnaround or customized sampling plans to meet project schedules.
What are the Benefits of ASTM C1202 Testing?
ASTM C1202 testing offers a fast, standardized indicator of concrete’s susceptibility to chloride ingress. It enables owners, contractors, and engineers to make informed decisions about concrete mix selections, supporting the following objectives:
- Reduce lifecycle costs
- Minimize corrosion risk
- Support risk management
- Guide maintenance strategies
About the ATS FoC
Founded in 1967, Applied Technical Services is a reputable provider of testing, inspection, and certification services. We maintain a nationwide network of certified experts and accredited facilities, offering a wide range of tests that comply with industry standards and are tailored to our clients’ project needs.
The ATS FoC joined SGS, the world’s leading provider of TIC services, in 2026. This partnership will not change our operations but will expand our capabilities and provide access to SGS’s technical expertise.
Contact Us
To schedule ASTM C1202 testing, complete our web request form or call +1 (888) 287-5227 to learn more about our capabilities and turnaround times.

