artificial lawn average of five samples

artificial lawn average of five samples

Calculation artificial lawn5 samples the arithmetic mean, according to formula (R1) Total grate deviation rate:
(1) the formula. D_ deviation, F uniformly arithmetic mean of five samples, in units of Newtons (N);
F-sample extraction force, in Newtons (N);
If a deviation of the test results of the sample more than 30% of the sample test result is invalid, retest.
Annex C (normative) Determination of the coefficient of friction - sneakers France
A range
The method used in the laboratory or in the field Cao, test a variety of conditions with artificial lawn sports shoes and the coefficient of friction differential between the imagination.
2 Definitions
Frictional coefficient
Move the desired level sneakers pull Bao weight of the shoe and shoes which are subject to heavy pressure and mass ratios obtained. According to equation (1) calculated as follows:
(1) where:
ST-Friction coefficient:
F-moving force required level sports shoes, in F is just starts moving force of the shoe, in units of Newtons (N);
G-quality shoes and shoes are exposed mass of the weight and power of the doorpost obtained, in kilograms (kg).
2 friction coefficient difference
Coefficient of friction in different directions in several directions and the measured friction coefficient arithmetic mean of the absolute deviation.
3 Test Equipment
A shoe as a national standard 26 yards shoes, soles of rubber, sole thickness is 24, and flattened on the shoes.
Nylon band width of 2 24nn, a length of 1830.
3 barbell weight .34 kg, diameter 29c, 1c each side sticky thick vinyl foam.
4 Test Procedure

Clearly artificial turf and natural grass edge difference

Engage in green for decoration, the choice of what kind of lawn good? artificial turf which brand is good? Artificial turf, multi-purpose sports stadium and kindergartens in places. Compared to artificial turf, natural grass, artificial grass upfront investment than investment and large, which it needs from the Song Shi, transplant sod, fertilization, water, conservation, etc. a lot of manpower, material resources, and artificial grass will not have to consider these issues, only pave the venue, there is a fixed drains, on the line; small investment for a one-time, required less manpower and resources.

Clearly artificial turf and natural grass edge difference, artificial turf brand choice is a problem. So artificial turf which brand is good? We recommend Old Firm big brands. Generally survive decades of artificial turf brand and reputation are generally not poor, but to maintain a stable and old customers.

artificial turf which brand is good? TurfSoccer artificial turf, artificial turf production to focus on more than 20 years. TurfSoccer artificial turf firmly believe that efforts to build brands and product advantages, strict product quality.

Each new design artificial lawn Dutch imports are optional monofilament manufacturing, people touch up realistic and vivid, soft carpet surface, with good elasticity and the damping force can be the same as natural grass falling tone noise. Children need not worry about accidentally fell across the hard ground and skin abrasions, sweeping away the worries of parents and old people.

TurfSoccer artificial turf soft wear-resistant, cement, asphalt and other ground surface installation. Ideal for nursery school playground, roofs, balconies, and a variety of decoration style accommodation. More flexible and longevity. Some lawn introduction of the Dutch technical life of up to 10 years. artificial turf later maintenance very simple, low maintenance costs, rinse with water to remove dirt, but also do not fade, no deformation characteristics.

TurfSoccer lawn there is a very significant advantage in that it can be effectively advanced texture which does not rust when exposed to air, permeable, breathable, substantial frugal maintenance costs at a later stage. The average life of an ordinary domestic artificial turf 1.5-2 times. TurfSoccer artificial turf also introduced advanced scientific philosophy of life, not only can effectively alleviate the noise, vibration and stress. Also has a recyclable, processing and utilization of multiple, low-carbon environmental protection.

TurfSoccer artificial turf, as natural as TurfSoccer closer to natural grass. TurfSoccer baby home turf is the people, the kids playground paradise, it is garden construction, home decoration among a beautiful landscape.

artificial grass market prospects are widely good

artificial grass originated in the United States in 1968, the invention of a military project, because of its special wear-resistant, can be frequently used, are widely used in football, baseball, soccer and other sports venues. It is estimated that the world's use of artificial grass has reached more than 200 million square meters, and the most widely used is the stadium.

In recent years, with the artificial grass in the manufacture of materials, weaving, and other aspects of the filler material and improve them with the difference between natural turf shrinking. In the 21st century, artificial grass used to rationalize its use in international competition has gradually been recognized. As FIFA President has decided, in 2010 FIFA World Cup South Africa on allowing the use of third-generation artificial grass.

With sports and popular recreational sports in our country flourish, artificial turf stadium has become a symbol of modern sports facilities. In recent years, the National Stadium from school, kindergarten through community leisure venues have formed an increasingly strong trend.

Artificial grass products have been mostly used PU Backing materials and technologies that replace the ordinary bottom back, because high technical threshold, currently in the country only a few manufacturers can produce. MIE series of artificial grass is based on modern sports venues comfort requirements for design and manufacturing, he fully mimic natural grass, highlighting UV resistance, abrasion resistance and stiffness effects, the maximum range for a variety of sports venues. From professional venues, training venues to the public as well as medium and large institutions stadium, sports venues around the world has its role to play.

Currently, artificial grass has been well received by the school, organizational units, stadiums and other public places of all ages. Also, because the artificial grass carpet not only non-slip, dust, easy to clean, and the shape of real grass, a green feeling, now become a common upholstery, and get ordinary people's favorite, therefore, artificial grass market prospects are widely good, which is the domestic artificial grass manufacturers are constantly emerging, the reason for the rapid development of the industry.

Now the international community, such as Ajax, Real Madrid, AC Milan and other famous football clubs have artificial grass stadium. Development of artificial grass late start, mid-1990s, China began from abroad for the laying of artificial grass sports fields, some domestic enterprises have begun to develop production of artificial grass, artificial grass has now been widely recognized by everyone, Beijing Guoan, Shanghai Shenhua, Shandong Luneng Football Club has its own artificial grass stadium.