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ASTM F 3528 : 2021

Current

Current

The latest, up-to-date edition.

Standard Test Method for Exoskeleton Use: Gait

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-11-2021

€61.92
Excluding VAT

Committee
F 48
DocumentType
Test Method
Pages
15
PublisherName
American Society for Testing and Materials
Status
Current

1.1Purpose:

1.1.1The purpose of this test method, as a part of a suite of exoskeleton use test methods, is to quantitatively evaluate an exoskeleton’s (see Terminology F3323) safety (see 1.4) or performance, or both, for gait.

1.1.2Exoskeletons shall possess a certain set of allowable exoskeleton user movement capabilities, including user-motion adaptability, to suit operations such as: industrial/occupational, military, response, medical or recreational. Environments in these typical sectors often pose constraints to exoskeleton user movement to various degrees. Being able to walk, as intended by the user or test requestor, while using an exoskeleton is essential for exoskeleton deployment for a variety of tasks. This test method specifies test setup, procedure, and recording to standardize this gait task for testing exoskeleton user movement.

1.1.3Exoskeletons shall be able to handle many types of task and terrain complexities. The required movement capabilities include, for example: walking, running, crawling, climbing, traversing gaps, hurdles, stairs, slopes, various types of floor surfaces or terrains, and confined spaces. Standard test methods are required to evaluate whether or not exoskeletons meet these requirements.

1.1.4ASTM Subcommittee F48.03 develops and maintains international standards for task performance and environmental considerations that include but are not limited to, standards for safety, quality, and efficiency. This subcommittee aims to develop standards for any exoskeleton application, as exemplified as in 1.1.2. The F48.03 test suite consists of a set of test methods for evaluating exoskeleton capability requirements. This gait test method is a part of the test suite. The setup, procedure, and apparatuses associated with the test methods challenge specific exoskeleton capabilities in repeatable ways to facilitate comparison of different exoskeleton models or exoskeleton capabilities to tasks. Not all exoskeletons may have the capabilities needed to use this test method.

1.1.5This test method tests for generic gait exoskeleton capability, with straight paths and no test course curves, obstacles, or other complexities not described herein (see 4.6). This test method is considered the basis for exoskeleton gait capability testing.

1.1.6The test methods quantify elemental exoskeleton use capabilities necessary for sector applications listed in 1.1.2, and perhaps others. As such, users of this standard should use either the entire suite or a subset based on their particular requirements. Users are also allowed to weight particular test methods or particular metrics within a test method differently based on their specific requirements. The testing results should collectively represent an exoskeleton’s overall safety or performance, or both, as required for the task. These performance data can be used: to guide procurement specifications, for acceptance testing, and for training to use exoskeletons intended for specified applications.

Note 1:Additional test methods within the suite are anticipated to be developed to address additional exoskeleton capability requirements, including newly identified requirements and even for new application domains.

1.2Performing Location—This test method shall be performed in a testing laboratory or at a site that represents the place where the exoskeleton will be used.

1.3Units—The values stated in SI units are to be regarded as the standard. The values given in parentheses are not precise mathematical conversions to inch-pound units. They are close approximate equivalents for the purpose of specifying material dimensions or quantities that are readily available to avoid excessive fabrication costs of test apparatuses 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.

1.4This 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.

1.5This 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.

ASTM F 3527 : 2024 Standard Guide for Assessing Risks Related to Implementation of Exoskeletons in Task-Specific Environments
ASTM F 3323 : 2024 Standard Terminology for Exoskeletons and Exosuits
ASTM F 3527 : 2021 Standard Guide for Assessing Risks Related to Implementation of Exoskeletons in Task-Specific Environments
ASTM F 3517 : 2021 Standard Practice for Movement Tests When Using an Exoskeleton
ASTM F 3323 : 2020 Standard Terminology for Exoskeletons and Exosuits
ASTM F 3323 : 2021 Standard Terminology for Exoskeletons and Exosuits

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