Services

Standard Test Method for Determining Relative Humidity (RH) in Concrete Floor Slabs Using In Situ Probes

• Quantitative determination of percent relative humidity within a concrete slab.
• The most common test method for measuring moisture content inside a concrete slab.
• Requires 2 site visits:
  • Day 1: Drill a ¾″ diameter hole to 40% of slab depth and secure probe sleeve at each test location. Minimum 24 hours must pass before inserting probes.
  • Day 2: Insert probes, allow time to equilibrate, then record all readings.

Standard Test Method for Measuring Moisture Vapor Emissions Rate (MVER) of Concrete Subfloor Using Anhydrous Calcium Chloride

• Quantitative determination of the rate of moisture vapor emitted from a bare concrete floor.
• Requires 3 site visits over 5 days:
  • Day 1: Remove any existing flooring and adhesive at each test site at least 24 hours before testing. (Skip if the concrete is already bare.)
  • Day 2: Lightly grind a 20″ × 20″ area and place MVER kits at each test site. Kits must remain completely undisturbed for a minimum of 60 hours and no more than 72 hours. It is imperative these kits remain undisturbed and uncompromised for the full duration.
  • Days 3 & 4: Kits remain in place.
  • Day 5: Retrieve kits and record results.

Standard Practice for Field Determination of Substrate Water Absorption (Porosity) for Substrates to Receive Resilient Flooring

• Determines whether a substrate surface is porous or non-porous before resilient flooring installation.
• A relatively new standard that is becoming increasingly common.
• Included with all testing at no extra charge.

Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring

• Determines the acceptability of a concrete floor surface for resilient flooring installation.
• pH testing was removed from the current ASTM F 710 standard, but many flooring manufacturers still require it before installation.
• Included with all testing at no extra charge.

Standard Guide for Preliminary Evaluation of Comparative Moisture Condition of Concrete, Gypsum Cement and Other Floor Slabs Using a Non-Destructive Electronic Moisture Meter

• Completely non-destructive testing method.
• Provides readings only to a depth of 0.5″–1″.
• Available upon request.