ASTM D2047 PDF
ASTM D Standard Test Method for Static Coefficient of Friction of Polish- Coated Flooring Surfaces as Measured by the James Machine. Jan 5, The ASTM E slip resistance test standard defines the British pendulum . ASTM D is the basis of the testing of floor “waxes” (floor. Oct 31, ABIC Testing Laboratories, Inc. was authorized to test the following samples of metal floor panels for static coefficient of friction (SCOF).
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The compliance criterion is based on a correlation of polish friction data from D with the pedestrian experience of billions of passes over millions and millions of square feet of polished floors from through the mids. The OSHA recommendation is therefore meaningless, but has caused confusion for many years.
This device is not patented. The HPS measures both static and kinetic coefficient of friction. Optical microscopy and SEM are available to better examine and document the topography or roughness characteristics of a surface. Measurements can be made in accordance with the following standards, except that the contact area and the applied weight may differ: Here you can find a Tortus video demonstration.
Satm above standards require measurements of the SCOF in each of four orthogonal directions. It was once cited by the U. By examining each standard and the test that is performed for each, you can choose which non-skid flooring option best suits your applications needs. See a video demonstration of the BOTE.
Many government regulations are based upon ASTM standards. Direct questions and comments to contactus andersonmaterials.
The Brungraber Mark is commonly used for measure slip resistance on ramps, in both the laboratory and the field. These features help establish courtroom credibility. There are manufacturing process reasons as well, such as stamping.
The Tortus digital tribometer slip resistance test method is based on a proprietary or patented device, which makes it ineligible to become an ASTM standard. Each ASTM standard is complied by numerous tests being done by various sources. Feel free to contact us with any questions. Since friction is not a property of a surface but of an interface, holding one surface of the interface the specification leather constant will provide a measure of the friction contribution of various polish surfaces to the interface.
The pendulum is the basis of the Sustainable Slip Resistance standard that has been specified by McDonalds Restaurants since Dry surfaces are mostly tested by this method, wet measurements are possible but erratic.
This physical parameter for electrical connection materials and some mechanical connections is also important. The ASTM E slip resistance test standard defines the British pendulum tester that is now a national standard for pedestrian floor slip resistance in 49 nations on five continents and has been endorsed by Ceramic Tile Institute of America since It is a laboratory machine that tests flooring samples and due to its design is not usable on an actual floor.
Once slippage has begun, a higher dynamic coefficient of friction may help one to recover asstm a slip, but it is better to prevent the slippage in the first place.
Static Coefficient of Friction Measurements
Safety Direct America can run slip resistance tests both in the lab or at your site with these instruments and other test methods upon requestand can also sell you your own slip resistance test instruments.
It is a pound drag sled that is pulled by a hand-held force meter aetmand the coefficient of friction COF is calculated from the horizontal and vertical forces. The meter has three feet which are Neolite for standard slippage testing purposes. It has been used for field testing, but is of limited utility astj laboratory testing because it requires a long path length of flooring. It should be noted that some surfaces have a strong directional dependence on the SCOF. The value of 0.
While conformance with D and its compliance criterion is a primary requirement for polished floor safety, regular, routine maintenance is also an important part of pedestrian safety.
With more than a half-century of consistently predictable and axtm testing results behind it, the ASTM D standard continues to be the go-to standard for the floor polish industry, including their manufacturers, material suppliers and all users of floor polish.
Slip Resistance Testing Standards in 2018
Although it is necessary for a aetm to pass this test, it is not sufficient in validating a scientific slip test instrument. The Access Board later withdrew this citation, and now provides no suggested test method or safety standard. Anderson Zstm Evaluation, Inc. The English XL Tribometer mimics the human stepping motion and allows for synchronized application of vertical and horizontal forces. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Of course for other applications in which the friction under slippage is important, such as machine operation or manufacturing processes, the dynamic coefficient of friction is a vital parameter and may be the more important practical parameter. However, the three slip test devices listed above allow the user ample capability for prevention and analysis of slip and fall accidents in almost any situation.
A surface with an adequate average may actually have an unsafe SCOF in a particular direction. Many other parties benefit financially from these accidents or sale of the slippery flooring that often causes them: This surface then has roughness on three scales and has the unusual property d2407 having an even higher C2047 when wet than when dry.
ASTM withdrew this standard inwith no replacement.
Testing the Safety of Polished Floors | ASTM Standardization News
d247 Both hard and soft rubbers are specified for the pendulum, with soft rubber being applied primarily to barefoot situations such as showers, bathroom floors, and swimming pool decks.
The American Slip Meter ASM and A are also static friction testers, and therefore not suitable for wet testing to assess pedestrian safety.
Static coefficient of friction slip testing is therefore irrelevant.