718-824-1616 info@certifiedtestinglabs.com Mon-Fri: 7am to 5pm
718-824-1616 info@certifiedtestinglabs.com Mon-Fri: 7am to 5pm

Bethlehem Pennsylvania


Special Inspections

  • Soil Percolation Test – Drainage Disposal Systems
  • Double Ring infiltration testing (ASTM D3385)
  • 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
  • Concrete Precast
  • Masonry
  • Subsurface Conditions-Subgrade Inspection
  • Subsurface Conditions-Fill Placement & In-Place Density
  • Subsurface Investigations
  • Helical Piles
  • Vertical Masonry Foundation Elements
  • Underpinning
  • Footing and Foundation
  • Coefficient of friction test (slip test)
  • Lowest Floor Elevation
  • Moisture vapor emission rate test
  • Moisture testing (drywall, concrete, wood)
  • Light Pole Testing (Paint Thickness)

Construction Materials Testing (CMT)

  • Concrete Testing & Sampling Inspections
  • Relative Humidity (RH) of Concrete
  • Reinforcing Steel Inspection & Rebar Locator
  • Floor Flatness
  • Masonry Mortar & Grout Sampling & Testing
  • Compressive Strength Testing of Concrete, Masonry Units & Masonry Prisms
  • Tensile Strength
  • Soil compaction
  • Visual Proof Rolls
  • Soil Bearing Capacity
  • Windsor Probe Testing
  • Swiss Hammer Testing
  • Pullout Strength of Hardened Concrete (ASTM C900)
  • Concrete Core Testing & Sampling
  • Modulas of Elasticity
  • Chloride Ion Penetration
  • Bituminous Paving Plant & Field Inspections
  • Caisson Inspections
  • Test Pits
  • Soil Borings
  • Sinkhole Inspections
  • Atterberg Limits (ASTM 4318)
  • Grain Size/Gradation:
    • Hydrometer Analysis (ASTM D422)
    • Sieve Analysis (ASTM C136)
    • Material Finer than No. 200 (ASTM D1140)
  • Moisture Density Relations of Soils – ASTM D698 (Standard Proctor)
  • Moisture Density Relations of Soils – ASTM D1557 (Modified Proctor)
  •  Soil Classification (AASHTO, UNIFIED, FAA, Visual)
  • Laboratory Determination of Moisture Content of Soil and Rock (ASTM D2216)
  • pH of Soils (ASTM D4972)
  • Organic Content by Loss of Ignition (AASHTO T267)
  • Permeability of Granular Soils (Constant Head), (ASTM D2434)
    • Hydraulic Conductivity of Saturated Porous Materials using a Fleixible Wall Permeameter (ASTM D5984)
  • Specific Gravity of Soil Solids (ASTM D854)
  • Bulk Specific Gravity of Compacted Asphalt Mixtures (AASHTO T166)
  • Specific Gravity & Absorption of Fine Aggregate (ASTM C128)
  • Specific Gravity & Absorption of Course Aggregate (ASTM C127)
  • Relative Density (ASTM D4254 & ASTM D4253)
  • Percent Air Voids in Compacted Dense Bituminous Paving Mixture (ASTM D3203)
  • Extraction of Bitumen for Bituminous Paving Mixtures (ASTM D2172) Bitumen Content, %
  • Thickness of Compacted Bituminous Mixture Specimens (ASTM D3549)
  • Maximum Theoretical Gravity (Rice Method), (AASHTO T209)
  • Density of In-Place Samples (Cores), (AASHTO T166)
  • Los Angeles Abrasion and Impact Test (AASHTO T96)
  • Soundness of Aggregate Test (AASHTO T104)
  • California Bearing Ratio (Laboratory Compacted), ASTM D1883
  • Coarse Aggregate PaDot Quality Requirements (PaDot 408 Sec 703.2 Table B)
  • Natural Building Stone Tests
  • Flexural Strength Testing of Concrete Test Beams
  • Unit Weight – Hardened Concrete Test Cylinder
  • Density, Absorption and Voids in Hardened Concrete (ASTM C642)
The Bethlehem office won a Soil Testing award in the Best of Bethlehem awards 2019!






Lori Sergent - General Manager, Bethlehem

Lori Sergent joined Certified Testing Labs as a secretary in 1996. Through focus and strong effort she advanced to Office Manger and now serves as the General Manager of CTL’s Bethlehem location. Lori is responsible for leading and directing office and lab personnel and managing daily operations. She holds an Associate’s degree in Science and is a Pennsylvania Notary Republic.  While working full-time at CTL, she continued her education by studying Nutrition part-time at Cedar Crest College.

Glenn Riegel - Laboratory Manager, Bethlehem

Glenn Riegel is the Laboratory Manger at CTL’s Bethlehem facility.  Glenn is a testing laboratory expert with over thirty years of industry experience.  As Lab Manager, he is responsible for supervising both lab and field personnel, calibrating and maintaining laboratory equipment performance, establishing quality standards and certifying equipment performance.  His duties also include the scheduling and training of field service representatives. Glenn has been with CTL since 1985 and studied Mathematics at East Stroudsburg University.  Glenn holds a certification as an ACI Concrete Strength Testing Technician and is trained in Radiation Safety & Hazmat.