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3. Clean the concrete surface of any foreign substances.
A foreign substance can be floor covering, adhesive residue, epoxy coating,

paint, curing and sealing compounds, waxes, dirt or oil stains, or any other

material residue on the slab surface. Remove concrete contaminants by shot

blasting, abrasive grinding wheel or diamond cup wheel. The use of wire brushes

or razor scraping may not be suitable for achieving a clean, open concrete slab

surface.

4. Prepare test area and schedule testing.
ASTM requires that a minimum of 20 x 20 inches of concrete surface area be

cleaned for each test (as described above) and allowed to remain open for at

least 24 hours before setting the calcium chloride test. once the test is placed,

it must remain undisturbed for a period of 60 to 72 hours. Always plan carefully

in advance of testing to ensure open time after preparation and exposure time

during the testing period will allow for proper placement and retrieval.

QuaNTITaTIVe TesT MeTHod for deTerMINING MoIsTure

VaPor eMIssIoN raTe (asTM f 1869)

►PurPose:
alpha

Moisture Test Kit is designed to quantitatively measure the rate of moisture

vapor emission.

►CoNTeNTs:
Each test kit consists of one cylindrical container filled with anhydrous calcium

chloride and one transparent plastic dome with pre-installed sealant around the

perimeter.

►reQuIred Tools: (NoT INCluded)
Surface grinder with vacuum mount, safety goggles, dust respirator, protective

gloves, cloth rags, utility knife, scale capable of measuring to nearest 0.1 gram

and duct tape.

►aPPlICable sTaNdards:
A person using this test kit shall strictly follow the instructions given in the latest

asTM f 1869 published by american society for Testing & Materials. The copies