https://yse.yabesh.ir/std/handle/yse/161 Sat, 04 Apr 2026 20:11:20 GMT 2026-04-04T20:11:20Z https://yse.yabesh.ir/std/handle/yse/344009 Standard Specification for ASTM Thermohydrometers with Integral Low-Hazard Thermometers; ASTM E2995-15a ASTM - ASTM International This specification is applicable to glass thermohydrometers of various scale graduation systems, intended for use in a variety of ASTM Test Methods. The thermohydrometers covered by this specification have larger maximum permissible scale errors than do their Hg-filled counterparts. It is up to the user to decide if these thermohydrometers are appropriate for use in his or her application. This specification establishes requirements for thermohydrometers with respect to type, body, ballast, stem, scale, markings, calibration and verification, packaging, and inspection procedures. Wed, 01 Jan 2025 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/344009 2025-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/344008 Standard Test Method for Evaluating Response Robot Mobility: Traverse Gravel Terrain; ASTM E2991/E2991M-25 ASTM - ASTM International 5.1 This test method is part of an overall suite of related test methods that provide repeatable measures of robotic system mobility and remote operator proficiency. This gravel terrain specifically challenges robotic system locomotion, suspension systems to maintain traction, rollover tendencies, self-righting in complex terrain (if necessary), chassis shape variability (if available), and remote situational awareness by the operator. As such, it can be used to represent modest to challenging (when the cross-over slope configuration is used) outdoor terrain complexity or indoor debris within confined areas. 5.1.1 Traversing on terrains with small aggregate (such as Number 8 or smaller gravel, per Specification C33/C33M) may pose mobility challenges for ground robots. The aggregate may become incrementally packed into the locomotion subsystems (such as driving sprockets, belts, chains, tire treads, or track pads) leading to jamming, slippage, or other failures, and thus adversely affecting a robot’s mobility. In addition, small gravel-based terrains are non-rigid and may cause a robot to turn-in-place or dig-in when the robot is negotiating a tight turn. Certain robotic locomotion mechanisms might be designed for other mobility purposes and might not create sufficient traction against the specified gravel terrain. 5.2 The overall size of the terrain apparatus can vary to provide different constraints depending on the typical obstacle spacing of the intended deployment environment. For example, the terrain with containment walls can be sized to represent repeatable complexity within bus, train, or plane aisles; dwellings with hallways and doorways; relatively open parking lots with spaces between cars; or unobstructed terrains. 5.3 The test apparatuses are low-cost and easy to fabricate so they can be widely replicated. The procedure is also simple to conduct. This eases comparisons across various testing locations and dates to determine best-in-class systems and operators. 5.4 Evaluation—This test method can be used in a controlled environment to measure baseline capabilities. It can also be embedded into operational training scenarios to measure degradation due to uncontrolled variables in lighting, weather, radio communications, GPS accuracy, etc. 5.5 Procurement—This test method can be used to identify inherent capability trade-offs in systems, make informed purchasing decisions, and verify performance during acceptance testing. This aligns requirement specifications and user expectations with existing capability limits. 5.6 Training—This test method can be used to focus operator training as a repeatable practice task or as an embedded task within training scenarios. The resulting measures of remote operator proficiency enable tracking of perishable skills over time, along with comparisons of performance across squads, regions, or national averages. 5.7 Innovation—This test method can be used to inspire technical innovation, demonstrate break-through capabilities, and measure the reliability of systems performing specific tasks within an overall mission sequence. Combining or sequencing multiple test methods can guide manufacturers toward implementing the combinations of capabilities necessary to perform essential mission tasks. Wed, 01 Jan 2025 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/344008 2025-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/344007 Standard Test Method for Calibration or Calibration Verification of Constant Speed Concentric Cylinder Rotational Viscometers; ASTM E2975-25 ASTM - ASTM International 5.1 This test method may be used to calibrate or verify calibration of a rotational viscometer with coaxial spindle geometries. Wed, 01 Jan 2025 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/344007 2025-01-01T00:00:00Z https://yse.yabesh.ir/std/handle/yse/344006 Standard Test Method for Determination of Effective Boron-10 Areal Density in Aluminum Neutron Absorbers using Neutron Attenuation Measurements; ASTM E2971-16 ASTM - ASTM International 5.1 The typical use of this test method is determination of 10B areal density in aluminum neutron absorber materials used to control criticality in systems such as: spent nuclear fuel dry storage canisters, transfer/transport nuclear fuel containers, spent nuclear fuel pools, and fresh nuclear fuel transport containers. 5.2 Areal density measurements are also used in the investigation of the uniformity in 10B spatial distribution. 5.3 The expected users of this standard include designers, suppliers, neutron absorber users, testing labs, and consultants in the field of nuclear criticality analysis. 5.4 Another known method used to determine areal density of 10B in aluminum neutron absorbers is an analytical chemical method as mentioned in Practice C1671. However, the analytical chemical method does not measure the “effective” 10B areal density as measured by neutron attenuation. Wed, 01 Jan 2025 00:00:00 GMT https://yse.yabesh.ir/std/handle/yse/344006 2025-01-01T00:00:00Z