Certified Testing Labs construction testing - finished floor for testing

Soil compaction to structural steel and concrete, we have you covered.

Construction testing and inspections

CERTIFIED TESTING LABS
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OUR SERVICES

Certified Testing Laboratories, Inc. (CTL) is an independent materials testing/inspection agency that has provided services for clients since 1958. CTL services New York, New Jersey, Pennsylvania and Connecticut.
Our qualified staff performs on-site construction testing and inspection services, in accordance with the pertinent codes and regulations (AWS, API, ASME, ASTM E-329-70, SNT-TC-1A, ASNT), for the following areas…
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Non-Destructive Testing (NDT)

  • RT – X-Ray / Industrial Radiography
  • UT – Ultrasonic Testing
  • MT – Magnetic Particle Testing
  • PT – Dye Penetrant Testing
  • VT – Visual Testing
  • Welder Qualification Testing
  • CWI – Visual Inspection
  • Half Cell Testing
  • Structural Steel inspection
  • Reinforcin

Special Inspections

  • Wall Panels, Curtain Walls & Veneers
  • Exterior Insulation Finish Systems
  • Chimneys
  • Flood Zone Compliance
  • Luminous Egress Path Markings

Soils/Aggregate-Field

  • Footing inspection-bearing capacity
  • Stabilized sub-grade inspection-Proofroll
  • Controlled fill-compaction testing
  • Materials-quantity verification inspection
  • California bearing ratio(CBR) field
  • Material sampling
  • Soil borings/Test pits
  • Pile driving
  • Sprayed Fire-Resistant Materials
  • Mastic & Intumescent Fire-Resistant Coatings
  • Smoke Control Systems
  • Sprinkler Systems
  • Standpipe Systems
  • Fire-Resistant Penetrations & Joints
  • Emergency & Standby Power Systems
  • Mechanical Systems
  • Fuel-Oil Storage & Piping Systems
  • Heating Systems
  • Soil Percolation Test – Drainage Disposal Systems
  • On-Site Storm Water Drainage Systems
  • On-Site Sewage Disposal System Installation
  • Soil Percolation Test – Sewage Disposal Systems
  • Ultrasonic Inspection
  • Magnetic Particle Inspection
  • Liquid Dye Penetrant Inspection
  • Industrial Radiographic Inspection
  • High-Strength Bolting
  • Metal Decking
  • Shop/Field Welds
  • Structural Cold-Formed Steel
  • High Temperature Hot Water Piping-Welding
  • High Pressure Steam Piping-Welding
  • High Pressure Fuel Gas Piping-Welding
  • Aluminum Welding
  • Concrete Precast
  • Prestressed Concrete
  • Masonry
  • Subsurface Conditions-Subgrade Inspection
  • Subsurface Conditions-Fill Placement & In-Place Density
  • Subsurface Investigations
  • Deep Foundation Elements
  • Helical Piles
  • Vertical Masonry Foundation Elements
  • Structural Stability-Existing Buildings
  • Excavations/Sheeting/Shoring/bracing
  • Underpinning
  • Mechanical Demolition
  • Raising & Moving of Buildings
  • Seismic Isolation Systems
  • Post Installed Anchors
  • Footing and Foundation
  • Lowest Floor Elevation
  • Structural Wood Frame Inspection
  • Fire-Resistance Rated Construction
  • Energy Code Compliance
  • Public Assembly Emergency Lighting

Construction Materials Testing

  • Organic content
  • Hydrometer
  • Sieve analysis
  • Atterberg limits
  • Soil classification
  • Moisture density relations of soils-standard proctor
  • Specific Gravity
  • pH value
  • Moisture content
  • Absorption
  • Permeability
  • Permeability class rating-dep
  • Hydraulic Conductivity
  • Los Angeles abrasion and impact test
  • California bearing ratio (CBR)-lab
  • Soundness of aggregates
  • Resistivity
  • Compaction testing
  • Diamond core drilling/sampling
  • Batch plant inspection
  • Relative density
  • Percent air voids
  • Extraction of bitumin
  • Density
  • Thickness
  • Maximum theoretical gravity(rice method)
  • Field testing/inspection
  • Batch plant inspection
  • Floor flatness
  • Diamond core drilling/sampling
  • Pull/load testing
  • Windsor probe
  • Swiss hammer
  • Moisture vapor emission rate
  • Compressive strength
  • Flexural strength
  • Chloride ion penetration
  • Unit weight
  • Fire Rating of concrete masonry units
  • Absorption of concrete masonry units
  • Modulas of elasticity

Spray on Fireproofing-Field

  • Thickness
  • Bond strength

Spray on Fireproofing-Laboratory

  • Density

Door & Frame Fire Rating
Fire Stopping Inspection

Certified Testing Labs construction testing and inspections

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