ASTM F3427-20
(Practice)Standard Practice for Documenting Environmental Conditions for Utilization with Exoskeleton Test Methods
Standard Practice for Documenting Environmental Conditions for Utilization with Exoskeleton Test Methods
SIGNIFICANCE AND USE
4.1 This section provides a description of the environmental conditions listed in Section 1 and describes the sub-conditions within each condition. Examples provided for many of the conditions and sub-conditions are provided as guidance only. Each of the conditions described should be evaluated and documented as set forth in Sections 5 – 7.
4.2 Environment Consistency: Static, Dynamic, Transitional
4.2.1 Static is when the environment is similar throughout the test apparatus. For example, there are minor fluctuations in temperature throughout the apparatus as shown in Fig. 1 and Fig. 2. Dynamic is when the environment significantly differs within the test apparatus. For example, when the temperature changes between repetitions as shown in Fig. 3. Transitional is when the environment significantly differs in different areas within the test apparatus as shown in Fig. 4. The intent here is to not give specific guidance, but to provide a high-level classification of a particular set of environmental conditions. If environment consistency is dynamic or transitional, or both, a report form (see Section 7) for each unique set of environmental conditions should be completed.
FIG. 1 Example of Static Environment Using Temperature
FIG. 2 Example of Static Environment Using Temperature and Showing a Transition Between Two Static Environments
FIG. 3 Example of Dynamic Environment Using Temperature and Showing that the Environment Changed During the Test
FIG. 4 Example of Transitional Environment Using Temperature Portions of the Environment may Remain Static or may be Dynamic (For example, Cold to Colder)
4.3 Floor or Ground Surface:
4.3.1 Exoskeleton mobility is affected by ground surface conditions including: surface texture/roughness, deformability, slope or lack of flatness (that is, undulation). Ground surface conditions can affect the exoskeleton: traction, vibration affecting the electronics integrity, positioning, and stability.
4.3.2 Type(s): ...
SCOPE
1.1 When conducting test methods, it is important to consider the role that the environmental conditions play in measurement of exoskeleton safety and performance. Exoskeletons are designed to be operated both indoors and outdoors under conditions specified by the manufacturer. Likewise, end users of the exoskeletons will be using these exoskeletons in a variety of environmental conditions. When conducting and replicating ASTM Committee F48 test methods by exoskeleton manufacturers and users, it is important to specify and document the environmental conditions under which the exoskeleton is to be tested as there will be variations in system performance caused by the conditions, especially when comparing and replicating sets of test results. It is also important to consider changes in environmental conditions during the course of operations (for example, transitions between conditions). As such, environmental conditions specified in this document are static, dynamic, or transitional, or combinations thereof; with the exoskeleton stationary or in motion. This document provides brief introduction to the following list of environmental conditions that can affect performance of the exoskeleton:
1.1.1 Floor or ground surface;
1.1.2 Temperature;
1.1.3 Humidity;
1.1.4 Atmospheric pressure;
1.1.5 Lighting;
1.1.6 Air flow and quality;
1.1.7 External sensor emission;
1.1.8 Electrical interference;
1.1.9 Boundaries;
1.1.10 Additional categories, for example underwater, extraterrestrial, may also be added to this standard as the exoskeleton industry applications evolve in these areas.
1.1.11 This document then breaks down each condition into sub-categories so that the user can document the various aspects associated with the category prior to exoskeleton tests defined in ASTM Committee F48 test methods listed in Section 2. It is recommended that salient environment conditions be documented when conduc...
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Standards Content (Sample)
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.
Designation: F3427 − 20
Standard Practice for
Documenting Environmental Conditions for Utilization with
1
Exoskeleton Test Methods
This standard is issued under the fixed designation F3427; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope definedinASTMCommitteeF48testmethodslistedinSection
2. It is recommended that salient environment conditions be
1.1 When conducting test methods, it is important to con-
documented when conducting ASTM Committee F48 test
sider the role that the environmental conditions play in
methods.
measurement of exoskeleton safety and performance. Exoskel-
etons are designed to be operated both indoors and outdoors 1.2 The environmental conditions listed in 1.1 to be docu-
under conditions specified by the manufacturer. Likewise, end mented for exoskeleton(s) being tested are described and
users of the exoskeletons will be using these exoskeletons in a parameterized in Section 4 and allow a basis for performance
variety of environmental conditions. When conducting and comparison in test methods. The approach is to divide the list
replicatingASTMCommitteeF48testmethodsbyexoskeleton of environmental conditions into sub-conditions that represent
manufacturers and users, it is important to specify and docu- the various aspects of the major category (for example,
ment the environmental conditions under which the exoskel- type-concrete within floor and ground surface). Where
eton is to be tested as there will be variations in system necessary, this document also provides guidelines (for
performance caused by the conditions, especially when com- example, grade levels and particulates) to document environ-
paring and replicating sets of test results. It is also important to mental conditions in an existing environment.
consider changes in environmental conditions during the
1.3 The values stated in SI units are to be regarded as
course of operations (for example, transitions between condi-
standard. The values given in parentheses after SI units are
tions). As such, environmental conditions specified in this
provided for information only and are not considered standard.
document are static, dynamic, or transitional, or combinations
1.4 This standard does not purport to address all of the
thereof; with the exoskeleton stationary or in motion. This
safety concerns, if any, associated with its use. It is the
document provides brief introduction to the following list of
responsibility of the user of this standard to establish appro-
environmental conditions that can affect performance of the
priate safety, health, and environmental practices and deter-
exoskeleton:
mine the applicability of regulatory limitations prior to use.
1.1.1 Floor or ground surface;
1.5 This international standard was developed in accor-
1.1.2 Temperature;
dance with internationally recognized principles on standard-
1.1.3 Humidity;
ization established in the Decision on Principles for the
1.1.4 Atmospheric pressure;
Development of International Standards, Guides and Recom-
1.1.5 Lighting;
mendations issued by the World Trade Organization Technical
1.1.6 Air flow and quality;
Barriers to Trade (TBT) Committee.
1.1.7 External sensor emission;
1.1.8 Electrical interference;
2. Referenced Documents
1.1.9 Boundaries;
2
2.1 ASTM Standards:
1.1.10 Additional categories, for example underwater,
extraterrestrial, may also be added to this standard as the E1155M TestMethodforDetermining F FloorFlatnessand
F
F Floor Levelness Numbers (Metric)
exoskeleton industry applications evolve in these areas.
L
1.1.11 This document then breaks down each condition into E1274 Test Method for Measuring Pavement Roughness
Using a Profilograph
sub-categories so that the user can document the various
aspects associated with the category prior to exoskeleton tests F3323 Terminology for Exoskeletons and Exosuits
1
This practice is under the jurisdiction of ASTM Committee F48 on Exoskel-
2
etons and Exosuits and is the direct responsibility of Subcommittee F48.03 on Task For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Performance and Environmental Considerations. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved March 1, 2020. Published March 2020. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
F3427-20. the ASTM website.
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