![]() ![]() All sensors must be calibrated no less than 30 days prior to use. ![]() 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. This process requires time and quantifiable concrete moisture measurements to verify. October 31, at The next five have to do with the proper installation and use of the RH test method. Contact My Account 0 items For flooring and concrete professionals, ASTM F provides the standard for using relative humidity RH testing when measuring moisture content in concrete slabs. If i have stadard area of approx sq ft and have done the required testing rest the area, and 5 fail and 3 pass does the whole area fail?Ĭan you please let me know your recommendation on this? F requires three test holes for the first ft 2 and, at least, one additional hole for each additional ft 2. This will NOT be valid for ASTM compliance, but can certainly provide a target timeline for schedule decisions or for choosing alternate adhesive or flooring options that might have higher moisture tolerances. Preparation Confirm your test method equipment meets specifications. We have people who use the Rapid RH on shallow pours. Many contractors use vapor barriers directly under the slab to slow moisture permeation. The only thing we recommend is that you ensure that there is a good seal between the sensor body and the concrete wall.ĪSTM F formally recognizes the use of in situ probes as a means of conducting relative humidity testing. Be sure to familiarize yourself with ASTM F and choose the best concrete moisture test method for the job. Leave a Reply Cancel reply Your email address will not be published. The first thing I would look at is the assembly that you are installing. How do you handle this problem? The standard provides precise guidelines for RH testing methods. Stzndard Testing and Reporting Drill and prepare the test holes. Know the required depth of the test holes. Section 9 of the standard requires that both the slab and the ambient air above it must be at service conditions for a minimum of asm hours before testing. Once you find out the methodology they require to meet warranty, I would reach out to someone within RCI in your area to conduct the tests. These requirements for the standard apply regardless of the RH test method being used. 10 Guidelines for ASTM F2170 Preparation and Testing January 9, at With all areas of ASTM-compliant RH testing, precision is key and data integrity must also be the focus for each flooring professional.Īs any professional knows, ASTM standards are established to help guide industry testing and also to help ensure standardized best practices to protect both the installer and the consumer. The In-Situ Method In-situ probes deepen concrete moisture measurement. Some calibration restrictions may apply, so read the standard carefully to be sure your test equipment qualifies for the most recent standard. ![]() April 7, at 3: Your email address will not be published. We recommend placing the serial number decal which also helps track certification of each sensor wtandard the corresponding test hole on the mapped report. In-situ concrete moisture testing places sensors, or probes, inside the slab itself. Sub-grade water vapor can permeate even well-mixed and applied slabs. June 9, at 1: Thanks for the reply, Patrick. ![]() Surface-based test results will fluctuate, even more, under these changes in environmental conditions. And installers are finding results are more accurate and more dependable with RH testing. Make sure your calibration is up to date. General contractors must bear in mind two interactive processes when they are looking at construction schedules: Jason, I appreciate this means to contact you. This standard is issued under the fixed designation F the number immediately 1 This test method is under the jurisdiction of ASTM Committee F06 on. The ASTM F standard represents a fundamental change in how. This test method covers the quantitative determination of percent relative testing. In fact The Standard The In-Situ Method In-situ concrete moisture testing places sensors, or probes, inside the slab itself. ASTM F formally recognizes the use of in situ probes as a means of conducting relative humidity testing. ![]()
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