5.1 The ball-surface interaction is just one of the important properties of a sports surface. It may be an indicator of the playability or suitability of the surface.5.2 Manufacturers of sporting balls may use this method to evaluate the effects of design changes on the rebound height produced.5.3 Manufacturers of sports surfaces may use this method to evaluate the effects of design changes in the sports surface system on the rebound height produced.5.4 The tendency of modern facilities to support multiple sports on a single surface may require that test surfaces be tested for several types of sporting balls. Examples include, but are not limited to: basketball, soccer, tennis, and baseball.5.5 The measurement of rebound height may be affected if the temperature of the ball has not reached equilibrium with the environment.1.1 This test method covers the quantitative measurement and normalization of the vertical rebound produced during impacts between athletic balls and athletic surfaces.1.2 Measurements may be conducted on nonathletic surfaces to test the performance properties of the ball.1.3 Measurements may be conducted using nonathletic balls to test the performance properties of the surface.1.4 The methods described are applicable in both laboratory and field settings.1.5 The values stated in metric units are to be regarded as the standard. The inch-pound units given in parentheses are for reference only.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 加购物车

5.1 The padding shall be constructed to yield the values listed in Table 1 throughout the impact area under the conditions of the manufacturer's warranty.(A) As specified by manufacturer5.2 Special requirements for the padding shall be subject to purchase agreements. Special requirements shall never reduce any of the basic requirements listed in this standard.5.3 Good manufacturing practices shall be used in the construction and inspection of the padding.AbstractThis specification covers wall padding and padding for other indoor structures. All padding constructions are included. Qualification of construction designs and comparison of products shall be discussed. The padding can be classified into two types: Type 1 for permanently attached paddings and Type 2 for removable paddings. The paddings can also be classified into grades: Grade A for coated paddings and Grade B for covered or encased paddings. Physical properties such as shock absorption, gmax, HIC, and thickness shall be determined.1.1 This specification covers wall padding and padding for other indoor structures. All padding constructions are included. The intended use of this specification is for the qualification of construction designs and comparison of products.NOTE 1: This specification was developed due to the numerous designs in existence and the need to provide a method to determine if a wall pad meets a minimum level of protection.NOTE 2: There is no equivalent ISO standard.1.2 The values as stated in SI units are to be regarded as the standard. The values in parentheses are given for information only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See 7.1 for specific hazards statement.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 加购物车

5.1 Upon mutual agreement between the purchaser and the supplier, fabrics intended for this end use should meet all of the requirements listed in Table 1 of this performance specification.5.2 It is recognized that for purposes of fashion or aesthetics, the ultimate consumer of articles made from these fabrics may find acceptable fabrics that do not conform to all of the requirements in Table 1. Therefore, one or more of the requirements listed in Table 1 may be modified by mutual agreement between the purchaser and the supplier.5.2.1 In such cases, any references to the specification shall specify that: This fabric meets ASTM Specification D4154 except for the following characteristic(s).”5.3 Where no prepurchase agreement has been reached between the purchaser and the supplier, and in case of controversy, the requirements listed in Table 1 are intended to be used as a guide only. As noted in 5.2, ultimate consumer demands dictate varying performance parameters for any particular style of fabric.5.4 The uses and significance of particular properties and test methods are discussed in the appropriate sections of the specified test methods.1.1 This performance specification covers knitted and woven fabrics comprised of any textile fiber or mixture of fibers used in men's and boy's beachwear and sports shirts.1.2 This performance specification is not applicable to knitted and woven fabrics used for interlining and swimwear.1.3 These requirements apply to both the length and width directions for those properties where fabric direction is pertinent.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 加购物车

定价： 515元 加购物车

定价： 590元 加购物车

This specification covers eye protectors, exclusive of helmet-mounted visors, designed for use by riders of motorcycles, mopeds, and snowmobiles for off road use that minimize or significantly reduce injury to the eye and adnexa as a result of impact and penetration by objects that may be kicked up from the road, track, trail, or snow surfaces and made airborne and, as such, likely to cause eye discomfort or injury. This specification does not address shield-type eye protectors such as are connected to, integral to, and/or supported by protective helmets. Protective eyewear offers protection only to the eyes and does not protect other parts of the head, face, or neck. Protectors are divided into two types, goggles or spectacles, depending on their design characteristics. This specification does not apply to prescription eyewear. It covers material classification, general requirements (materials of construction, cleanability, Construction, and finish and coatings), performance requirements, specimen preparation, test methods (optical tests, mechanical tests), cleaning, and product marking.1.1 This specification covers eye protectors, exclusive of helmet-mounted visors, designed for use by riders of motorcycles, mopeds, and snowmobiles for off road use that minimize or significantly reduce injury to the eye and adnexa as a result of impact and penetration by objects that may be kicked up from the road, track, trail, or snow surfaces and made airborne and, as such, likely to cause eye discomfort or injury. This specification does not address shield-type eye protectors such as are connected to, integral to, and/or supported by protective helmets. Protective eyewear offers protection only to the eyes and does not protect other parts of the head, face, or neck.1.2 Protectors are divided into two types, goggles or spectacles, depending on their design characteristics.1.3 This specification does not apply to prescription eyewear. (Warning—Impact-resistant prescription spectacles that conform to the standard specifications of ANSI Z87.1 should be used if spectacles are to be worn under goggle-type eyewear as covered by this specification.)1.4 In this specification, the use of the word “shall” indicates a mandatory requirement. The word “should” indicates a recommendation.1.5 Units—The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. Metric units of measure in this specification are in accordance with the International System of Units (SI). If a value for measurement as given in this specification is followed by an equivalent value in other units, the first stated is to be regarded as the requirement. A given equivalent value may be approximate.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 加购物车

定价： 515元 加购物车

定价： 590元 加购物车

定价： 515元 加购物车

AbstractThese test methods establish the apparatuses required, standard procedures, and associated calculations for determining the particle size distribution and shape grading of sand in golf course putting green and other sand-based sports field rootzone mixtures assumed to have sand contents of 80 % by weight or greater. Particles large enough to be retained on a No. 270 sieve are determined by sieving, while, the silt and clay percentages are determined by a sedimentation process using the pipet method.1.1 This test method covers the determination of particle size distribution of putting green and other sand-based rootzone mixes. Particles larger than 0.05 mm (retained on a No. 270 sieve) are determined by sieving. The silt and clay percentages are determined by a sedimentation process, using the pipet method. This procedure was developed for putting green rootzone mixes, those assumed to have sand contents of 80 % by weight or greater. Particle size analysis of soils may be performed by this test method or Test Method D422. This test method also describes a qualitative evaluation of sand particle shape.1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 加购物车

定价： 515元 加购物车

5.1 DSC is a convenient and rapid method for determining the temperature limits within which a wax undergoes during transitions. The highest temperature transition is a solid-liquid transition associated with complete melting; it can guide the choice of wax binders used in synthetic equine sports surfaces, provide information on the effect of operational track temperatures on binder melting, as well as giving indications of changes in the binder over time. The solid-solid temperature transition is related to the properties of the solid, that is, hardness and blocking temperature, although these slack wax-wax based binders typically contain oil contents greater that 20 % by mass and consequently are not in a hardened state unless subjected to very cold temperatures (well below –17 °C).NOTE 2: For a relatively narrow cut petroleum wax, the lowest transition will be a solid-solid transition. A narrow cut wax is one obtained by de-oiling a single petroleum distillate with a maximum range of 49 °CF between its 5 and 95 % vol in accordance with Test Method D1160 boiling points (converted to 760 torr). The DSC method cannot differentiate between solid-liquid and solid-solid transitions. Such information must be predetermined by other techniques. In the case of blends, the lower temperature transition may be envelopes of both solid-liquid and solid-solid transitions.5.2 Since petroleum wax is a mixture of hydrocarbons with different molecular weights, its transitions occur over a temperature range. This range is one factor that influences the width, expressed in degrees Celsius, of the DSC peaks. The highest temperature transition is a first-order transition. If, for a series of waxes, there is supporting evidence that the highest temperature transition of each wax is the major first-order transition, its relative width should correlate with the relative width of the wax’s molecular weight distribution.1.1 The slack waxes typically used in equestrian surfaces comprise a blend of different waxes and oils containing a variety of hydrocarbons, chain lengths and structures.1.2 The blend of wax and oil determines the mechanical properties of the surface material as well as the response of the wax to temperature. The combination of lower and higher carbon weight materials, oil content and hydrocarbon structures also control how the wax will change over time.1.3 The differential scanning calorimetry (DSC) test is used to determine temperature transitions and melting range of wax samples. DSC can therefore demonstrate differences in heat flow rates between extracted wax samples. The wax samples are extracted from samples of the surface materials and used in a standard test based on Test Method D4419 (1).2 This procedure involves thermal cycling of samples between –30 and 94 °C using a known control.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 加购物车

5.1 This test method can be used to determine in-place permeability of synthetic turf playing field systems, playing field systems with pad and or premolded drainage boards, playing field systems with premolded panel base systems, porous and non porous pavement systems in order to confirm compliance with design specifications and or evaluate existing as-built conditions. The simplicity of the test method, the quickness of the procedure, and the limited requirement for special tools and apparatus’ makes this ideal for performing a large quantity of tests over a large area such as a sports field.5.2 Synthetic turf field systems tend to drain under several flow regimes. The first flow regime is surface flow where water travels across the surface from typically higher elevations to lower elevations. The second flow regime is flow through the turf surface and base system. The third flow regime is lateral flow, which has two parts. Lateral flow within the section of the turf surface and lateral flow within the pre-molded drainage board, porous pavement and or base stone system below the turf. These are depicted diagrammatically in Fig. 1.FIG. 1 Basic Flow Regime Diagram5.3 This test method can provide owners, designers and turf system builders with a clear indication of actual in-field permeability flow rates with limited effect of lateral flow through base systems and no effect from head pressure.5.4 This test method can be used to determine the effectiveness of treatments intended to reduce the effect of hydrophobicity which has been known to decrease the permeability of some synthetic turf infill materials and components.5.5 The observable performance of the test method enables one to determine permeability by both a quantitative and qualitative measure.1.1 This test method may be used to determine the permeability rate of synthetic turf playing field systems, playing field systems with pad or premolded drainage boards, or both, playing field systems with premolded panel base systems, porous and non porous pavement systems, or base stone systems in the field, or a combination thereof, by non-confined area flood test method. This system is suitable for use on the finish synthetic turf playing surface and on the stone base system below the playing system.1.2 This test method is applicable for synthetic turf playing field systems and stone bases where system is designed for permeability through the synthetic turf surface and or through a base stone surface. It is also suitable for synthetic turf playing systems that are directly underlined with resilient and nonresilient pre-molded drainage boards systems and porous pavement base systems. The method tests a larger surface area than confined ring test methods and decreases the effect lateral flow within the surface and or stone base system due to the large increase in the ratio of test surface area to the synthetic turf playing system and stone base system thickness. The method is intended to more accurately mimic natural storm flow conditions by eliminating the effect of head pressure created by the water column height which creates a pressure flow condition at the surface of the test area that does not exist naturally.1.3 This test method is intended for finish-graded and compacted stone or finished surfaces that are installed with cross-slope gradients of less than 2.0 % or under conditions where the effect of cross-slope is mitigated by high system permeability. High sloping systems tend to have high sloping base systems which may impact results due to increases in the lateral flow within the section caused increased hydraulic energy caused by larger slopes.1.4 This test method is not applicable for conditions or locations in-which surface flow, due to high surface cross-slope or proximity, carries water flow from the test site to surface and subsurface drainage trenches or structures.1.5 Further, this test method may be impacted if preformed directly after a significant rainfall event in cases where the downstream capacity of the receiving drainage system is taxed to the extent that water backs up in the downstream system.1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 加购物车

定价： 590元 加购物车

定价： 0元 加购物车