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. Last previous edition approved in as. F DOI: / F/FA. 2 For referenced ASTM standards, visit the ASTM . ASTM F ASTM F RH (Relative Humidity) DOI: /F The ASTM F standard represents a fundamental change in how moisture is.

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For flooring and concrete professionals, ASTM F provides the standard for using relative humidity RH testing when measuring moisture content in concrete slabs.

Without it, even a well-dried and functioning foundation can end up with concrete slab moisture problems. Reusable sensors should be calibrated by the manufacturer at least once per year, or more asmt if exposed to conditions that may impact their accuracy. That being said, there are many people that have used F testing methodology for testing roof decks with this understanding.

F requires three test holes for the first ft 2 and, at least, one additional hole for each additional ft 2.

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

December 27, at 3: April 3, at The Ligno-Tec RH was designed for reliability and accuracy as well as sturdiness and ease of operation. In situ moisture measurement systems are evolving rapidly as a result of ATSM F and reflect the industry realities of the concrete installation business. Skip to content Concrete slab moisture is a major cause of concrete flooring failure.


Ligno-Tec RH Concrete Moisture Meter

This process requires time and quantifiable concrete moisture measurements to verify. June 9, at 1: Thanks for the reply, Patrick. Operation is that easy! Your email address will not be published. Is this acceptable or compromise the test? These first five steps are all preparatory and should be done before any sensors or RH probes are installed. Use up or down buttons to correct settings.

The instruments have proven to perform well in rough mill environments with day-to-day usage. In-situ probes deepen concrete moisture measurement.

Ligno-Tec RH Concrete Test Conforms to ASTM F

The next five have to do with the proper installation and use of the RH test method. Relative humidity RH in a concrete slab can fluctuate with environmental changes. Ligno-VersaTecpin-pinless-RH, meter only. Ff2170-11 sure to familiarize yourself with ASTM F and choose the best concrete moisture test method for the job.

Use our checklist to record and report the RH readings. As concrete dries, moisture migrates from the bottom of the slab to the surface where it can evaporate away.

Preparation Confirm your test method equipment meets specifications.

When concrete is mixed and poured, water vapor migrates from the bottom of the slab to the surface to evaporate. Can you please let me know your f270-11 on this? 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.


Make sure your calibration is up to date. Sub-grade water vapor can permeate even well-mixed and applied slabs. These requirements for t2170-11 standard apply regardless of the RH test method being used.

The only thing we recommend is that you ensure that there is a good seal between the sensor body and f21770-11 concrete wall. It can be used for: Does the finish roof product have specifications for testing the concrete deck? F2170-111 being said, I have heard a couple of different methods people are using. Some calibration restrictions may apply, so read the standard carefully to be sure your test equipment qualifies for the most recent standard.

ASTM F Explained – ASTM F Information

September 6, at All sensors must be calibrated no less f2170-11 30 days prior to use. The standard provides precise guidelines for RH testing methods. All cables have easy-to-connect and fail-proof 35mm stereo connectors.

October 27, at With all areas of ASTM-compliant RH testing, precision is key and data integrity must also be the focus for each flooring professional.

We also will not be shipping on these days, but will resume shipping on Tuesday, January 2nd. For most RH testing systems, this includes cleaning any debris out of the test hole and inserting the necessary liner in the hole.