定价： 1976元 / 折扣价： 1680 元 加购物车

定价： 1177元 / 折扣价： 1001 元 加购物车

5.1 This test method provides a means to measure a variety of fire-test-response characteristics associated with smoke obscuration and resulting from burning the electrical insulating materials contained in electrical or optical fiber cables. The specimens are allowed to burn freely under well ventilated conditions after ignition by means of a propane gas burner.5.2 Smoke obscuration quantifies the visibility in fires.5.3 This test method is also suitable for measuring the rate of heat release as an optional measurement. The rate of heat release often serves as an indication of the intensity of the fire generated. Test Method D5537 provides means for measuring heat release with the equipment used in this test method.5.4 Other optional fire-test-response characteristics that are measurable by this test method are useful to make decisions on fire safety. The most important gaseous components of smoke are the carbon oxides, present in all fires. They are major indicators of the toxicity of the atmosphere and of the completeness of combustion, and are often used as part of fire hazard assessment calculations and to improve the accuracy of heat release measurements. Other toxic gases, which are specific to certain materials, are less crucial for determining combustion completeness.5.5 Test Limitations: 5.5.1 The fire-test-response characteristics measured in this test method are a representation of the manner in which the specimens tested behave under certain specific conditions. Do not assume they are representative of a generic fire performance of the materials tested when made into cables of the construction under consideration.5.5.2 In particular, it is unlikely that this test method is an adequate representation of the fire behavior of cables in confined spaces, without abundant circulation of air.5.5.3 This is an intermediate-scale test, and the predictability of its results to large scale fires has not been determined. Some information exists to suggest that it has been validated against some large-scale scenarios.1.1 This is a fire-test-response standard.1.2 This test method provides a means to measure the smoke obscuration resulting from burning electrical insulating materials contained in electrical or optical fiber cables when the cable specimens, excluding accessories, are subjected to a specified flaming ignition source and burn freely under well ventilated conditions.1.3 This test method provides two different protocols for exposing the materials, when made into cable specimens, to an ignition source (approximately 20 kW), for a 20 min test duration. Use it to determine the flame propagation and smoke release characteristics of the materials contained in single and multiconductor electrical or optical fiber cables designed for use in cable trays.1.4 This test method does not provide information on the fire performance of electrical or optical fiber cables in fire conditions other than the ones specifically used in this test method, nor does it measure the contribution of the cables to a developing fire condition.1.5 Data describing the burning behavior from ignition to the end of the test are obtained.1.6 The production of light obscuring smoke is measured.1.7 The burning behavior is documented visually, by photographic or video recordings, or both.1.8 The test equipment is suitable for making other, optional, measurements, including the rate of heat release of the burning specimen, by an oxygen consumption technique and weight loss.1.9 Another set of optional measurements are the concentrations of certain toxic gas species in the combustion gases.1.10 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. (See IEEE/ASTM SI 10.)1.11 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.1.12 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.1.13 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.1.14 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： 843元 / 折扣价： 717 元 加购物车

3.1 Standard nomenclature shall be used to facilitate communication between designers, suppliers, and users of HVAC ventilation ductwork components.3.2 Standard design parameters shall be used to define ventilation ductwork shapes.3.3 Standard variables for design parameters (see 2.2) are useful in writing CAD/CAM software for automatic fabrication of ventilation ductwork shapes.1.1 This practice covers the identification of design configurations and descriptive nomenclature for sheetmetal HVAC ductwork shapes frequently used in shipbuilding. This practice also covers parametric dimensions of these shapes. (See Table 1.)1.2 This practice does not cover the location of seams or joints within a shape or the method of joining shapes together.1.3 Since this practice is not measurement sensitive, it is applicable whether inch-pound or SI metric dimensions are used.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： 646元 / 折扣价： 550 元 加购物车

5.1 These basic requirements for response robots that help enhance the safety and effectiveness of responders or soldiers include: the robots are designed to be remotely operated from safe standoff distances, deployable at operational tempos, capable of operating in complex environments, sufficiently hardened against harsh environments, reliable and field serviceable, durable or cost-effectively disposable, and equipped with operational safeguards.5.2 This practice aligns user expectations with actual capabilities to understand the inherent trade-offs in deployable systems at any given cost. For example, a design issue of the number of batteries to be packed on a robot could affect the desired weight, endurance, or cost. Appropriate levels of understanding can help ensure that requirement specifications are articulated within the limit of current capabilities.5.3 This practice provides a tangible representation of essential robot capabilities with quantifiable measures of performance. It facilitates communication among communities of robot users and manufacturers. As such, this practice can be used to help:5.3.1 Inspire technical innovation and guide developers toward implementing the combinations of capabilities necessary to perform essential mission tasks.5.3.2 Measure and compare essential robot capabilities. This practice can help establish the reliability of the system to perform specified tasks, highlight break-through capabilities, and encourage hardening of developmental systems.5.3.3 Inform purchasing decisions, conduct acceptance testing, and align deployment objectives with statistically significant robot capabilities data captured through repeated testing and comparison of quantitative results.5.3.4 Focus operator training and measure proficiency as a repeatable practice task that exercises actuators, sensors, and operator interfaces. The practice can help capture and compare quantitative scores even within uncontrolled environmental variables and, in turn, help develop, maintain, measure, and track very perishable skills over time and enable comparisons across squads, regions, or national averages.5.4 Although this practice is scoped for homeland security applications, it could be much more wildly applicable. However, it shall be the responsibilities of the respective practitioners to verify the extents of applicability of this practice to their domains.1.1 This practice, as a part of the response robot logistics test suite, specifies the requirements of identifying and documenting the configuration of a robot system under test as well as the associated processes for doing it. The aspects to be included in such a configuration practice are the key dimensions and weights, the existent subsystems and key components, as well as the key timing requirements for setting up and maintaining the system.1.2 This practice applies to ground, aerial, and aquatic response robot systems controlled remotely by an operator from a standoff distance appropriate for the intended missions. Such robot systems may further possess certain assistive features or autonomous behaviors.1.3 Performing Location—This practice may be performed anywhere the specific apparatuses are implemented and environmental conditions are met.1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. Both units are referenced to facilitate acquisition of materials internationally and minimize fabrication costs.1.5 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.1.6 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： 646元 / 折扣价： 550 元 加购物车

This specification covers zinc and zinc alloy jumbo and block ingots meeting dimensional requirements. Zinc jumbo and block ingot specifications shall include dimension definition and limits in dimension. Jumbo or block ingots, or both, shall be reasonably free from dross, cracks, adhering foreign matter, undue surface oxide, and any "flash" that would interfere with handling and use.1.1 This specification covers zinc and zinc alloy jumbo, block, half block, and slab ingot meeting dimensional requirements.1.2 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.1.3 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.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： 590元 / 折扣价： 502 元 加购物车

5.1 This horizontal flame test method measures the ability of the material to cease flaming when the source of ignition used is removed.5.2 This test method also provides a measure of the capability of the material to spread flame by dripping of flaming particles.5.3 This test method is used to assess the horizontal flame test performance of electrical insulation materials in Test Methods D470.5.4 In this test method, the test specimens are subjected to one or more specific sets of laboratory test conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this test to predict changes in the fire-test-response characteristics measured. The results are therefore valid only for the fire-test-exposure conditions described in this test method.1.1 This is a fire-test-response standard.1.2 This fire test method is applicable to the electrical insulation materials contained in wires or cables.1.3 The ignition source is a gas burner fueled by methane or natural gas.1.4 Use the values stated in SI units in referee decisions; see IEEE/ASTM SI-10. The values given in parentheses after SI units are provided for information only and are not considered standard.1.5 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.1.6 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.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： 515元 / 折扣价： 438 元 加购物车

5.1 The specific wear rates determined by this test method can be used as a guide in ranking the wear resistance of plastic materials. The specific wear rate is not a material property and will therefore differ with test conditions and test geometries. The significance of this test will depend on the relative similarity to the actual service conditions.5.2 This test method seeks only to describe the general test procedure and the procedure for calculating and reporting data.NOTE 2: This test configuration allows steady state specific wear rates to be achieved very quickly through the use of high loads and speeds. The thrust washer configuration described in Test Method D3702 does not allow for the use of such high speeds and loads because of possible overheating (which may cause degradation or melting, or both) of the specimen. Despite the differences in testing configurations, a good correlation in the ranking of wear resistance is achieved between the two tests (Table X2.1).1.1 This test method covers a laboratory procedure to measure the resistance of plastic materials under dry sliding conditions. The test utilizes a block-on-ring geometry to rank materials according to their sliding wear characteristics under various conditions.1.2 The test specimens are small so that they can be molded or cut from fabricated plastic parts. The test may be run at the load, velocity, and temperature which simulate the service condition.1.3 Wear test results are reported as specific wear rates calculated from volume loss, sliding distance, and load. Materials with superior wear resistance have lower specific wear rates.1.4 This test method allows the use of both single- and multi-station apparatus to determine the specific wear rates.1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information 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, 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 / 折扣价： 502 元 加购物车

This specification covers the identification of: drug contained in the prefilled syringe or delivery sysetm and the concentration, volume, and total amount of the drug, and whether it is to be diluted prior to administration. The label copy shall comply with the specified requirements. Delivery systems shall not resemble a normal syringe and shall be unsuitable for direct intravenous line injection. The copy for the proprietary name or established name of the drug shall be legible in accordance with the legibility test.1.1 This specification covers the identification of:1.1.1 The drug contained in the prefilled syringe or delivery system.1.1.2 The concentration, volume, and total amount of the drug, and whether it is to be diluted prior to administration.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.NOTE 1: The values in SI units are the recommended values.

定价： 0元 / 折扣价： 0 元

1 Scope This International Standard gives guidance on the use of configuration management within an organization. It is applicable to the support of products from concept to disposal. It first outlines the responsibilities and authorities before des

定价： 546元 / 折扣价： 465 元

5.1 This test method provides a means to measure a variety of fire-test-response characteristics associated with heat and smoke release and resulting from burning the materials insulating electrical or optical fiber cables, when made into cables and installed on a vertical cable tray. The specimens are allowed to burn freely under well ventilated conditions after ignition by means of a propane gas burner. The ignition source used in this test method is also described as a premixed flame flaming ignition source in Practice E3020, which contains an exhaustive compilation of ignition sources.5.2 The rate of heat release often serves as an indication of the intensity of the fire generated. General considerations of the importance of heat release rate are discussed in Appendix X1 and considerations for heat release calculations are in Appendix X2.5.3 Other fire-test-response characteristics that are measurable by this test method are useful to make decisions on fire safety. The test method is also used for measuring smoke obscuration. The apparatus described here is also useful to measure gaseous components of smoke; the most important gaseous components of smoke are the carbon oxides, present in all fires. The carbon oxides are major indicators of the completeness of combustion and are often used as part of fire hazard assessment calculations and to improve the accuracy of heat release measurements.5.4 Test Limitations: 5.4.1 The fire-test-response characteristics measured in this test are a representation of the manner in which the specimens tested behave under certain specific conditions. Do not assume they are representative of a generic fire performance of the materials tested when made into cables of the construction under consideration.5.4.2 In particular, it is unlikely that this test is an adequate representation of the fire behavior of cables in confined spaces, without abundant circulation of air.5.4.3 This is an intermediate-scale test, and the predictability of its results to large scale fires has not been determined. Some information exists to suggest validation with regard to some large-scale scenarios.1.1 This is a fire-test-response standard.1.2 This test method provides a means to measure the heat released and smoke obscuration by burning the electrical insulating materials contained in electrical or optical fiber cables when the cable specimens, excluding accessories, are subjected to a specified flaming ignition source and burn freely under well ventilated conditions. Flame propagation cable damage, by char length, and mass loss are also measured.1.3 This test method provides two different protocols for exposing the materials, when made into cable specimens, to an ignition source (approximately 20 kW), for a 20 min test duration. Use it to determine the heat release, smoke release, flame propagation and mass loss characteristics of the materials contained in single and multiconductor electrical or optical fiber cables.1.4 This test method does not provide information on the fire performance of materials insulating electrical or optical fiber cables in fire conditions other than the ones specifically used in this test method nor does it measure the contribution of the materials in those cables to a developing fire condition.1.5 Data describing the burning behavior from ignition to the end of the test are obtained.1.6 This test equipment is suitable for measuring the concentrations of certain toxic gas species in the combustion gases (see Appendix X4).1.7 The values stated in SI units are to be regarded as standard (see IEEE/ASTM SI-10). The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.1.8 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products or assemblies under actual fire conditions1.9 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.1.10 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.1.11 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： 843元 / 折扣价： 717 元 加购物车

5.1 The significance of the information to be recorded in a test report allows for A-UGV performance to be contextualized with A-UGV configuration.5.2 Limitations of the practice are that not all A-UGVs have the same capabilities or configuration parameters. For example, for capabilities, a vehicle that remaps during navigation versus another vehicle that uses a static map may behave differently in repeated runs of an obstacle avoidance test. For configuration, a vehicle that remaps during navigation may have varying times that obstacles remain in the map for test recreation.5.3 The environment map used by the A-UGV, developed through localization including any landmarks, shall be saved as used on the A-UGV and should be saved and provided as a human-readable layout on or off the A-UGV (see Appendix X1 showing a sample layout drawing).5.4 The main A-UGV hardware parameters shall be recorded as follows:5.4.1 Make and model;5.4.2 Part number;5.4.3 Serial number;5.4.4 Hardware revision number (if any);5.4.5 Number of drive/steer wheels;5.4.6 Steering type;5.4.7 A-UGV Type—For example, fork, tugger, unit load, cart; and5.4.8 Loaded/unloaded.5.5 The main A-UGV software parameters shall be recorded as follows:5.5.1 All applicable software and firmware versions;5.5.2 Velocity—Translation and rotation, minimum/maximum;5.5.3 Acceleration—Translation and rotation, minimum/maximum; and5.5.4 Stand-off Distances—Safety sensor thresholds, obstacle avoidance thresholds.5.6 The context for the test shall be recorded by providing detailed answers to the following questions:5.6.1 When are the various software configurations used during the test? For example, two software versions may be required as follows: Use configuration A for straight aisles and configuration B for turns.5.6.2 What other hardware and software parameters/settings are required to recreate the A-UGV behavior (that is, attached debug, settings, or other files)?5.6.3 What is the A-UGV layout that is saved and used on the vehicle and, if possible, saved and provided as a human-readable version?5.6.4 Are there constraints that the requestor has placed on the A-UGV? Examples may include the following:5.6.4.1 Generic Test Environment—For example, outdoors or indoors, day or night, defined or undefined test areas?5.6.4.2 Velocity and acceleration that are below the maximum capability?5.6.4.3 Clearances between the A-UGV and an obstacle during obstacle avoidance maneuvering?5.6.4.4 Negative obstacle measurement capability enabled?5.6.4.5 Choose its own path or is required to use a preferred path?5.7 Higher-level categories of A-UGV capabilities shall be recorded as follows:5.7.1 Localization Method—For example, natural features, reflective markers, tape on ground, matrix barcodes/visual fiducial system, lights in ceiling.5.7.2 Safety-rated Equipment—For example, scanning lasers and their make and model numbers; other functions of safety sensors.5.7.3 Other Sensors Used—For example, cameras, including their make and model numbers, and image processing software used for path planning.5.7.4 Added Equipment for A-UGV Testing—For example, cameras, including their make and model numbers, and image processing software used for capturing docking performance.1.1 This practice describes a means to record the Automatic, Automated, or Autonomous – Uncrewed Ground Vehicle (A-UGV) configuration when testing. The practice provides a method for recording A-UGV hardware and software control parameters and describes high-level capabilities, such as used for A-UGV safety and navigation.1.2 This practice: contextualizes the A-UGV configuration during a test, including the identification and adjustment of main configuration parameters; provides the proper context for test results; provides a basis for comparison of the test circumstances across different vehicles or tests, or both; and allows a test to be recreated.1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are not precise mathematical conversions to imperial units. They are close approximate equivalents for the purpose of specifying A-UGV characteristics while maintaining repeatability and reproducibility of the test method results. These values given in parentheses are provided for information only and are not considered standard.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： 646元 / 折扣价： 550 元 加购物车

5.1 This vertical flame test provides information regarding the flammability performance of electrical insulating materials.5.2 This test method is used to assess the vertical flame test performance of electrical insulation materials used in wires or cables in Test Methods D2633 and D3032 (Test A), as well as in Specifications D2219 and D2220.5.3 In this test method, the test specimens are subjected to one or more specific sets of laboratory test conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this test to predict changes in the fire-test-response characteristics measured. The results are therefore valid only for the fire-test exposure conditions described in this procedure.1.1 This is a fire-test-response standard.1.2 This fire test method is applicable to electrical insulation materials used for wires or cables. The materials are tested as plastic specimens on their own or installed on the wires or cables.1.3 The ignition source is a gas burner fueled by methane or natural gas.1.4 Use the values stated in SI units in referee decisions; see IEEE/ASTM SI-10. The values given in parentheses after SI units are provided for information only and are not considered standard.1.5 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.1.6 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.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 / 折扣价： 502 元 加购物车