ASTM F formally recognizes the use of in situ probes as a means of conducting relative humidity testing. In fact, ASTM F represents a fundamental. ASTM F ASTM F RH (Relative Humidity). Testing Protocol: ASTM Abstract: Significance and Use. Moisture permeating from concrete floor slabs. Standard Test Method for Determining Relative Humidity in Concrete Floor Using in situ Probes. Apparatus – Humidity Probe and Digital Meter Accuracy ± %.

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Updated ASTM F2170 Reflects the Newest Science about RH Testing

Is this acceptable or compromise the test? We use cookies for shopping cart functionality, to personalize content and ads, to provide social media features and to analyze our traffic. I hope this helps. Thanks for the reply, Patrick.

We also will not be shipping on these days, but will resume shipping on Tuesday, January 2nd. While any professional must understand the exact requirements of standard F the most recent versionthe following are 10 guidelines to help ensure that you have met the criteria laid out in ASTM F Some calibration restrictions may apply, so read the standard carefully to be sure your test equipment qualifies for the most recent standard.

At this point, if one test fails, they all fail. Note that the liner requirements have been updated and v2170 hole is to be fully lined to meet the ASTM standard.

Meeting this standard provides the groundwork for limiting moisture-related flooring problems and the many liabilities and mitigation problems that can result from excess moisture. With all areas of ASTM-compliant 2f170 testing, precision is key and data integrity must also be the focus for each flooring professional.

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This website uses cookies. The initial ASTM F for in situ RH testing was established inafter continuing research at Scandinavian universities in the s identified the exact specifications for conducting a reliably accurate RH test—placing the test probe at 40 percent depth for slabs poured on grade or 20 percent for slabs drying aztm both sides.

10 Guidelines for ASTM F2170 Preparation and Testing

October 31, at This website uses cookies. By testing non-destructively per ASTM F, the inspector can get an instant and precise evaluation of the moisture conditions within 1. There is a potential for condensation to appear on the sensor during the test period, due to the high relative humidity within the concrete until the concrete has astmm dried.

Know the required depth of the test holes.

When To Test Concrete To ASTM F?

And moisture can still be an issue at grade so concrete foundations must be designed to include proper moisture drainage. RH Testing and Reporting Drill and prepare the test holes.

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Can you please let me know your recommendation on this? This research was followed by years of additional testing at Lund University in Sweden and elsewhere.

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Now instead of putting things on hold qstm three full days while waiting for test results, contractors and flooring installers can take action in a day and be in full compliance with the F standard. Repairs Calibration Register Your Product. Without it, even a well-dried and functioning foundation can end up with concrete slab moisture problems.

The MVER is defined as the rate of water vapor emissions from the surface of concrete and is determined with asm use of a desiccant material sealed to the slab surface for a specified time period, then measured.

ASTM F Explained – ASTM F Information

Each test hole must be drilled to the depth determined at Step 5 above section 10 of ASTM F and properly prepared. The total area of the slab and the number of test holes must be recorded on your report.

This can only be done with reusable relative humidity probes that can be removed after one hour and reinserted at any time in the future to ensure accurate results. I would verify that the hole depths are consistent c2170 that environmental conditions are at service conditions. Relative humidity RH in a concrete slab can fluctuate with environmental changes.

If not, call their technical team and ask the questions.