in situ relative humidity test

This test method involves measuring relative humidity levels inside of the concrete slab and finds it's basis in testing commonly performed in Europe. This process requires time and quantifiable concrete moisture measurements to verify. Designation: F2170 − 11 Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes1 This standard is issued under the ﬁxed designation F2170; the number immediately following the designation indicates the year of The Australian Standard AS 2455.2 (Textile floor coverings – Installation practice – Carpet tiles), which specifies the requirements for the installation of carpet tiles, defers to AS 2455.1 for standards on how to prepare a floor for secure installation. The in situ probe test, when following ASTM F2170, is a widely accepted moisture test and arguably the most accurate.As implied by the term in situ (which means "in the natural place"), a probe or sensor is placed into the concrete to gather internal readings. RELATIVE HUMIDITY In Situ TEST The Test Results Mapping Diagram provides a visual depiction of the numerical values represented over the concrete slab. It involves drilling a hole into the concrete, and using an electronic relative humidity probe to measure the moisture directly in the slab. The in-situ test has a number of advantages of other methods: Over the years, I’ve always used Rapid RH sensors and found them good, easy, and reliable to use.”. In any drying concrete slab poured over a vapor barrier, there is a gradient effect to the moisture conditions within that slab – a gradual change from the deepest part of the slab to the surface. The in situ probe test is a testing method to quantify the relative humidity (RH) of a concrete slab. The Rapid RH® Concrete RH Testfrom Wagner Meters provides accurate concrete moisture readings quickly and easily. calcium chloride or less than 75% in-situ relative humidity. In July 1996, Dr. Göran Hedenblad, Lund Institute of Technology, Stockholm, Sweden performed experiments measuring the relative humidity within concrete by performing in-situ testing at different depths within a concrete slab. ASTM F2170 provides the standard for using relative humidity (RH) testing for flooring and concrete professionals when measuring moisture content in concrete slabs. 223 0 obj <>stream If any Calcium Chloride test is equal/greater than 3 lbs. When concrete is mixed and poured, water vapor migrates from the bottom of the slab to the surface to evaporate. The in situ probe test is a testing method to quantify the relative humidity (RH) of a concrete slab. This measures the relative humidity in the slab at a depth that would be equivalent to the RH that would exist in the slab after installation of an impermeable floor covering. Relative humidity systematic uncertainty % Correlated uncertainty for relative humidity of systematic uncertainty sources estimated from calibration, calibration correction, radiation correction, time-lag (csv-lev only). Limitations of In-situ relative humidity testing equipment. Percent Relative Humidity (RH) in Concrete Slabs - Preferred Method Testing for internal relative humidity of concrete slabs must be conducted in strict accordance with the latest edition of ASTM F 2170 , "Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ … Report all test results in chart form listing test dates, time, depth of test well, in-situ temperature, relative humidity and pH levels. VAPOR EMISSION TEST (MVER) ASTM F 1869 Calcium Chloride Test … The tests were performed as a function of temperature (80-120 ºC) and relative humidity (25100% RH)- . With the probe sealed in place, the setup is allowed to come to equilibrium for 72 hours, at which time readings can be taken. On the other hand, the ASTM F2170 in situ relative humidity (RH) test method for concrete not only is allowed for lightweight concrete slabs but is a superior concrete test method for ALL concrete slabs providing fast and reliable results that more accurately reflect the true moisture conditions in the slab. Cork/Rubber acoustical underlayment manufacturers require that concrete be less than 3 lbs. Relative Humidity Probe Relative humidity (RH) testing (See figure 1.5) is determined by in-situ probes installed deep in the slab. In situ RH probes, which are inserted into the slab to get readings below the surface, are now stipulated to get an accurate measure of concrete moisture condition in compliance with Australian AS 2455.1 and AS 2455.2 standards. It monitors internal relative humidity and temperature from fresh concrete to hardened stages. IN˜SITU RELATIVE HUMIDITY PROBE The Hygro-i2® probe is available in packs of: Number of probes Product code 1 3 6 12 25 50 100 HIPP1 HIPP3 HIPP6 HIPP12 HIPP25 HIPP50 HIPP100 Fast Acclimation and Temperature response time. The values stated in inch-pound units are to be regarded as standard. The nationwide Australian standard was approved on April 15, 2019, by the members of the TX-009 Joint Technical Committee on behalf of the Council of Standards Australia. VAPOR EMISSION TEST (MVER) ASTM F 1869 Calcium Chloride Test Measures moisture vapor emissions from surface of the concrete. To perform this in-situ type relative humidity test, simply drill a hole in the concrete 40% of the thickness of the slab. It involves drilling a hole into the concrete, and using an electronic relative humidity probe to measure the moisture directly in the slab. The OCV was briefly decay test interrupted every 24 hours for performing some diagnostics (described below) to evaluate the condition of the fuel cell. A Relative Humidity (RH) meter is a device that uses in-situ probes to get an accurate reading of moisture conditions deep within a material — typically a concrete slab. Reusable Hygro-i2® Relative Humidity sensors prove to be the lowest cost per ASTM F2170, BS 8201, 8203 and 5325 test. Moisture test results indicate the moisture condition of the slab only at the time of the test. The relative humidity of air is measured by hygrometer. Relative Humidity Probe . Wagner Meters announces the update to AS 2455.1 (Textile floor coverings – Installation practice – General) allowing the use of the in-situ relative humidity (RH) probes to test the moisture condition of concrete subfloors below the surface. We overcame biggest challenge and developed a drift-free sensor solution allowing continuous accurate humidity monitoring also after the probe has been exposed to extreme humidity. Relative humidity (RH) testing (See figure 1.5) is determined by in-situ probes installed deep in the slab. This means in-situ probes are able to generate more accurate data under conditions that … Relative humidity random uncertainty % Statistical standard deviation (k=1) of relative humidity (csv-obs only). The values stated in inch-pound units are to be regarded as... ASTM F2170. The new industry standard for measuring concrete moisture is the in-situ relative humidity test, as described in the ASTM F2170 test Method. The new industry standard for measuring concrete moisture is the in-situ relative humidity test, as described in the ASTM F2170 test Method. 187 0 obj <>/Filter/FlateDecode/ID[]/Index[162 62]/Info 161 0 R/Length 115/Prev 224915/Root 163 0 R/Size 224/Type/XRef/W[1 3 1]>>stream This test method covers the quantitative determination of percent relative humidity in concrete slabs for field or laboratory tests. f'�In��`��40;H2�,��A�S`�`�b��\ ��b�m�`]�Ä��y � Rt� Concrete Testing; Soils Testing; About. Results tend to be less impacted by ambient temperatures and relative humidity conditions than calcium chloride type tests. It tells you nothing about the moisture condition deeper in the slab. The Relative Humidity Test (ASTM F 2170-02) measures moisture within the surface of concrete. First CR 2021 Retreat will be held Virtually March 25th & 26th, 2021 via Zoom. Includes concrete placed below, on and above grade. How to Test Humidity in a Home. Remi LAb. Thus, in situ RH testing now joins the hood test, as one of only two test methods accepted for concrete testing during floor preparation. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. @[�6ј�S��|g�)o��♕'f�C!�kۨ6��W鸍�\ C=��U�~�n͇m��}ݓ[۬�[#gK��n�Q��'/��tG��7��t��Ϳ�x��ǵp��4��Id�w^��{�1��'0�ݬ�߰�`��@FЯs�WX��q=u�b��vh��y�U��7�}}I�H~�u�K��VN��w�eʦ̴#��uG�~C�ķ ���W��X�d�x6��wKL��ӓWo~��߆��on?\\�[��m��S�:�S�Kmَ6?0I��3V8��ƥGi�2a[8��G��N�o��=��ƴ:�� !l�Lr�69�&��m�� 4��o�>�۽Lߗ߸��T,�ſ!R�wlc��^��>�s��M�kj�Q[�0�� ~�L��ZW��a��r�.O��y#|#�h� C��)�MD��^*k��3�Aާc�m�H6�M?/�v��72}�о̿�m��U;4�'UBV�F�D��3=�}�I��wy��:vc��D�;2N�6�ߖcϯ�g�1��uG��U�g��X�k�� z�7̱%�`h�#ޣ1XZg�p}��hn��!oɘe}N��-Bqi��2�y �P$�/K&c[K�,��d| �H�j�I:� ޸�f7�Ӱst�&܃V��߄��En��E!�-�4r�!nr'�g�8R��8u�Х>�ڥi�:�Tw^O��E�awG�J�@�h�\�Z�|�H΢ y�,�6i&ڴ��4�3�F��5�M�]y�w"v�)ma^=y��-G��GkYh>�oI3x�O�h��P��. Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes This test method covers the quantitative determination of percent relative humidity in concrete slabs for field or laboratory tests. In-situ probes provide relative humidity (RH) measurements at 40% of the slab’s depth*, a position proven to more accurately portray the final RH levels of the slab if it were to be sealed at that point in time and the slab moisture allowed to fully equilibrate. Unlike the MVER test which looks at the top ½ to ¾” of the slab, the ASTM F 2170-11 standard recommends that RH measurements be taken at 40% of the slab depth. Unlike the MVER test which looks at the top ½ to ¾” of the slab, the ASTM F 2170-11 standard recommends that RH measurements be taken at 40% of the slab depth. The ASTM provides precise guidelines for RH testing methods but does not address the limitations of the testing equipment. Concrete is one of the most versatile materials used in constructing many famous structures seen today. The in-situ relative humidity test can, in many instances, detect this problem. RELATIVE HUMIDITY In Situ TEST ASTM F 2170 Relative Humidity Test Measures moisture inside the concrete as % relative humidity. The Relative Humidity Test (ASTM F 2170-02) measures moisture within the surface of concrete. Relative Humidity Probe Relative humidity (RH) testing (See figure 1.5) is determined by in-situ probes installed deep in the slab. Moisture test results indicate the moisture condition of the slab only at the time of the test and in the specific locations tested. h�b```c``��[� Ā B,@Q��*V@d��{ޖ��=��``��``��h`��*~��@Z�%�"��:ZH:�>��0`�c�dX�P}��A��A� h��"��.��Ł)�� b#К�0 ��6܅��a� �00�[�EE�s!jm Why Relative Humidity Testing? 1. Best in class accuracy, even at high RH >90%. The in situ probe test, when following ASTM F2170, is a widely accepted moisture test and arguably the most accurate.As implied by the term in situ (which means "in the natural place"), a probe or sensor is placed into the concrete to gather internal readings. It is our field experience that testing slab-on-grade concrete offers results, which are less impacted by ambient temperature and relative humidity conditions than calcium chloride type tests. ASTM F2170, Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes, states that, “Excessive moisture permeating from floor slabs after installation can cause floor covering failures such as debonding and deterioration of finished flooring and coatings and microbial growth.” The upshot? Relative Humidity Testing in Lightweight Concrete. This test method has been used extensively in Europe. ASTM F2170 In-Situ relative humidity meter, includes hand held meter, cable, probe and one relative humidity sleeve. Concrete In-Situ Relative Humidity and pH Testing (01450) Part 1 – General . Relative Humidity Testing; Load Testing; Pull Out and Pull Off Testing; Schmidt Hammer Surveys; Diamond Drilling and Dust Sampling; Concrete Assessment Surveys; Laboratory Testing . The F2170 Standard clearly requires to Check for Drift as the “meter reading must not drift more than 1% relative humidity over 5 minutes.” Furthermore, the Standard states, “Equilibration may take several hours to several days depending on factors such as the initial temperature difference between probe … }��/�oׯ��^)~��[��w��R��ޯB�맻��w4/�gW��hU��c��a]��g�W;Z��+?^|ح__~��7.��7W�~x��ߔ6�R��W�o]��ڭ��O��:9�.�Q�i��݇��Ow� t��:�i��1m�ζZo�_�3[6|�O�? Other tests are surface-based and do not give reliable results. A. Testing begun in Sweden and adopted by the ASTM has proven that a probe placed at 40% of the slab’s depth will ultimately give the most accurate readings of the final moisture conditions. For example, on a 4” thick slab, Moisture Vapor Emission (MVER) Test … 01923 551 889. endstream endobj startxref The Tramex reusable Hygro-i relative humidity probe has been designed specifically for measuring the potential moisture condition of a slab or screed as per ASTM F2170. fixed partial pressure regardless of their humidity. The relative humidity of air is measured by hygrometer. 1.01 Section Includes . 1.2 The values stated in inch-pound units … Allows 50 RH test locations to be tested within 30 minutes - 72 hours after acclimation period. This measures the relative humidity in the slab at a depth that would be equivalent to the RH that would exist in the slab after installation of an impermeable floor covering. The striking feature of the measurements is the significant increase in relative humidity along the anode gas channel due to back diffusion from the cathode. C. Determine the thickness of the concrete slab, typically from construction documents. Two moisture tests that are currently being accepted by Nydree and throughout the flooring industry are the Calcium Chloride Moisture Test and the In-situ Relative Humidity Moisture Test. Armstrong recommends the following test methods: Percent Relative Humidity (RH) in Concrete Slabs - Preferred Method Testing for internal relative humidity of concrete slabs must be conducted in strict accordance with the latest edition of ASTM F 2170, "Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes." Later, research in Sweden in the 1990s identified the proper depth at which an RH probe could yield the most accurate indication of the moisture condition of the concrete when the flooring will be installed. %%EOF Only the in situ relative humidity (RH) test … Jun 7, 2017 ... the concrete in-situ test or the F2170 test. h�bbd```b``6�� i�T* ��`��`5`v&��f0�VS The DataMaster™ (L6) app then takes all the information from the sensor and places it on my iPhone, which then allows me to send it as a spreadsheet to my laptop. Report all test results in chart form listing test dates and time, depth of test holes, in-situ temperature and in-situ relative humidity, as well as pH levels of concrete slab surface. High relative humidity of air will slow the curing process of flooring adhesives, mortars, and grouts. To better understand the concept of relative humidity, imagine a glass of water that is sealed. �%� The new Rapid RH L6 system simplifies the process even more while also adding the reliability and freedom of wireless data transmission for superior data integrity. B. The intent of the standard was to provide a practice … High relative humidity of air will slow the curing process of flooring adhesives, mortars, and grouts. The number of in-situ relative humidity test sites is determined by the square footage of the facility. The development was guided by the ASTM F2170 Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes. F2170 Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes Other Standards U.S. Department of Housing and Urban Development, Lead-Based Paint: Interim Guidelines for Hazard Identification and Abatement in Public and Indian Housing Available from the U.S. Department of Housing and Urban Development, 451 7th Street SW, Washington, DC 20410. In-Situ Moisture Measurement (The Correct Way) By Ray Thompson The study. Contractors can comply with AS 2455.1 using in situ RH test to measure concrete slab moisture Rogue River, OR (August 2019) – Wagner Meters announces the update to AS 2455.1 (Textile floor coverings – Installation practice – General) allowing the use of the in-situ relative humidity (RH) probes to test the moisture condition of concrete subfloors below the surface. %PDF-1.6 %�� Scope 1.1 This test method covers the quantitative determination of percent relative humidity in concrete slabs for field or laboratory tests. In situ measurement of temperature and relative humidity in real time along both anode and cathode gas channels has been demonstrated for the first time in a PEMFC. The number of in-situ relative humidity test sites is determined by the square footage of the facility. In-situ Relative Humidity Testing Pros. The best way to see the true moisture conditions in a concrete slab is to use “in situ” relative humidity probes that are placed down into the concrete to measure the moisture conditions. Use of the in situ RH test in Southern Hemisphere Pacific Rim countries accelerated in the 1980s when a New Zealand trade association provided its members with the Edney gauge hygrometer. endstream endobj 163 0 obj <>/Metadata 19 0 R/Pages 160 0 R/StructTreeRoot 43 0 R/Type/Catalog>> endobj 164 0 obj <>/MediaBox[0 0 612 792]/Parent 160 0 R/Resources<>/ProcSet[/PDF/Text]>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 165 0 obj <>stream More Than Skin Deep: The Beauty of In Situ Relative Humidity Testing When monitoring drying concrete slabs, it is important to understand that what you see on the surface is not the entire picture. The new industry standard for measuring concrete is the in situ concrete relative humidity test as described in the ASTM F2170 standard test method.
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