About artificial grass football field acceptance criteria? Product identification including product identification identification of turf, the cushion filler and the like, and the specific test method are shown in Table 1. Table 1 artificial grass yarn product identification and quality control requirements of the test object Test Performance Test methods for laboratory testing and field testing of the difference between FIFA Recommended 2 Star FIFA Recommended 1 Star football field turf and grass silk mass per unit area ISO 8543 <± 10% <± 10% of the number per unit area of ??grass silk ISO 1763 <± 10% <± 10% grass wire pull-out strength ISO 4919 <-10% <-10% grass wire length ISO 2549 <± 5% <± 5% grass yarn quality ISO 8543 <± 10% <± 10% grass yarn properties DSC - - filler thickness EN 1969 <± 15% <± 15% filler material particle size EN 933-Part 1 <± 20% <± 20% particle shape prEN 14955 <± 20% <± 20% volume density EN 13041 <± 15% <± 15% sand buffer layer mass per unit area EN 430 <± 100gm2 <± 100gm2 artificial turf material structure: artificial turf consists of three layers of materials. Base layer is made of compacted soil, gravel and asphalt or concrete layer. Requires a solid base layer, deformation, surface smooth and impermeable artificial turf sports, namely general concrete venue. Due to the large area hockey venue, must handle the construction of the base layer to prevent subsidence. If laying concrete layer, after curing of concrete expansion joints to be cut out, to prevent thermal expansion deformation and fracture. Above the base layer is a buffer layer, usually composed of rubber or foam. Rubber elastic medium, thickness 3 ~ 5mm. Foam with a lower cost, but poor elasticity, thickness of 5 ~ 10mm artificial turf, too thick plastic artificial grass lawn is too soft, and easy to depression; lack of elasticity is too thin, would not achieve the buffer. The buffer layer must be firmly attached to the base layer, usually with white latex or all-purpose adhesive paste. The third layer is the surface layer, for the divot. According to the surface shape manufacturing plush turf, circular curled nylon turf, turf leafy polypropylene fibers, nylon and other prepared permeable turf. This layer must also be used in the rubber or foam adhesive on milk. Must fully rubberized construction of artificial turf price, followed by the pressure close to the prison, not wrinkled. In other countries, common two divot: 1, divot lobed fibers thinner, only 1.2 ~ 1.5mm; 2, turf fiber thick, 20 ~ 24mm, which is filled almost to the top of a quartz fiber. Artificial grass craft | Camry Sports | Inner artificial turf provided by the Dongguan City Camry sports facilities Engineering Limited. Dongguan City Camry Sports Facilities Engineering Co., Ltd. (www.kmtyss.com) is Dongguan, related products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the Camry sports leadership with the staff warmly welcome all inquiries negotiations to create Camry sports a better future.