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ASTM F3548-21

(Specification)

Standard Specification for UAS Traffic Management (UTM) UAS Service Supplier (USS) Interoperability

Standard Specification for UAS Traffic Management (UTM) UAS Service Supplier (USS) Interoperability

SIGNIFICANCE AND USE
7.1 This specification is intended to be used by USS developers, CAAs, and others to assess USS conformance with this UTM specification.
SCOPE
1.1 This specification is intended to be a global specification providing components that may be used to satisfy requirements expected to be common to many UTM-related regulations. This specification is not intended to comprehensively address all aspects of any particular UTM-related regulation or concept of operations. Similarly, because varying terminology for the same concept is frequently used across different regulations, readers should not expect an exact terminology consistency with any particular UTM-related regulation.  
1.2 This version of the specification is focused on strategic aspects of UAS operations, including strategic conflict detection, aggregate conformance of operations to their operational intents, constraint awareness, and situational awareness in the event of nonconforming or contingent operations. The intention is that this specification will evolve to address increasingly complex strategic aspects of UAS operations and potentially certain tactical aspects of UAS operations.  
1.3 This specification addresses the performance and interoperability requirements, including associated application programming interfaces (APIs), for a set of UTM roles performed by UAS Service Suppliers (USSs) in support of UAS operations.2 Roles are groupings of one or more related UTM services. A competent authority may choose to use the roles defined in this specification in establishing the granularity of authorizations granted to a USS. The roles defined in this specification are:
(1) Strategic Coordination, comprising the Strategic Conflict Detection and Aggregate Operational Intent Conformance Monitoring services;
(2) Conformance Monitoring for Situational Awareness (CMSA);
(3) Constraint Management, comprising the Constraint Management service; and
(4) Constraint Processing, comprising the Constraint Processing service.  
1.4 Section 4, Conceptual Overview, provides a description of each of the services and roles and includes further discussion on their scope.  
1.5 A regulator may choose to require that a USS support a minimum or prescribed set of roles and services and may adopt terminology other than USS for a software system that provides something other than that minimum or prescribed set of roles and services. However, for purposes of this specification, a USS is a system that provides one or more of the UTM services defined in this specification.  
1.6 A USS is not required by this specification to perform all roles or implement all defined services, providing business case flexibility for implementers. A typical USS that supports operators in the planning and execution of UAS operations may implement the Strategic Coordination, Constraint Processing, and CMSA roles. (Note that a USS providing CMSA for a UAS operation is required to also provide Strategic Coordination for the operation.) However, other implementations more limited in scope are possible. For example, a USS may implement only the Constraint Management role and be intended for use only by authorized constraint providers; or, a USS may implement only the Constraint Processing role to provide general airspace awareness to users independent of planning UAS flights. USSs may also provide additional, value-added capabilities and still be compliant with this specification as long as the value-added capabilities do not conflict with the services defined in this specification, and the implementation of services defined in this specification conforms to the applicable requirements.  
1.7 A USS may also support other UTM roles such as Remote ID and airspace access (for example, the FAA’s LAANC), specified in other documents.  
1.8 This specification addresses aspects common to all roles and services, such as Discovery and Synchronization Services (DSS), security, aud...

General Information

Status
Published
Publication Date
30-Nov-2021
ICS
17.040.01 - Linear and angular measurements in general
Technical Committee
F38 - Unmanned Aircraft Systems
Drafting Committee
F38.02 - Flight Operations
Current Stage
Ref Project

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ASTM F3548-21 - Standard Specification for UAS Traffic Management (UTM) UAS Service Supplier (USS) InteroperabilityASTM F3548-21 - Standard Specification for UAS Traffic Management (UTM) UAS Service Supplier (USS) Interoperability
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ASTM F3548-21 - Standard Specification for UAS Traffic Management (UTM) UAS Service Supplier (USS) Interoperability
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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:F3548 −21
Standard Specification for
UAS Traffic Management (UTM) UAS Service Supplier (USS)
1
Interoperability
This standard is issued under the fixed designation F3548; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope (3)Constraint Management, comprising the Constraint
Management service; and
1.1 Thisspecificationisintendedtobeaglobalspecification
(4)Constraint Processing, comprising the Constraint Pro-
providingcomponentsthatmaybeusedtosatisfyrequirements
cessing service.
expected to be common to many UTM-related regulations.
This specification is not intended to comprehensively address
1.4 Section 4, Conceptual Overview, provides a description
allaspectsofanyparticularUTM-relatedregulationorconcept
ofeachoftheservicesandrolesandincludesfurtherdiscussion
of operations. Similarly, because varying terminology for the
on their scope.
same concept is frequently used across different regulations,
1.5 Aregulator may choose to require that a USS support a
readers should not expect an exact terminology consistency
minimumorprescribedsetofrolesandservicesandmayadopt
with any particular UTM-related regulation.
terminology other than USS for a software system that pro-
1.2 This version of the specification is focused on strategic
vides something other than that minimum or prescribed set of
aspects of UAS operations, including strategic conflict
roles and services. However, for purposes of this specification,
detection, aggregate conformance of operations to their opera-
a USS is a system that provides one or more of the UTM
tional intents, constraint awareness, and situational awareness
services defined in this specification.
in the event of nonconforming or contingent operations. The
intention is that this specification will evolve to address 1.6 AUSSisnotrequiredbythisspecificationtoperformall
increasingly complex strategic aspects of UAS operations and roles or implement all defined services, providing business
potentially certain tactical aspects of UAS operations. case flexibility for implementers. A typical USS that supports
operators in the planning and execution of UAS operations
1.3 This specification addresses the performance and in-
may implement the Strategic Coordination, Constraint
teroperability requirements, including associated application
Processing, and CMSA roles. (Note that a USS providing
programming interfaces (APIs), for a set of UTM roles
CMSA for a UAS operation is required to also provide
performed by UAS Service Suppliers (USSs) in support of
2
Strategic Coordination for the operation.) However, other
UAS operations. Roles are groupings of one or more related
implementations more limited in scope are possible. For
UTM services. A competent authority may choose to use the
example, a USS may implement only the Constraint Manage-
rolesdefinedinthisspecificationinestablishingthegranularity
mentroleandbeintendedforuseonlybyauthorizedconstraint
of authorizations granted to a USS. The roles defined in this
providers; or, a USS may implement only the Constraint
specification are:
Processing role to provide general airspace awareness to users
(1)Strategic Coordination, comprising the Strategic Con-
independent of planning UAS flights. USSs may also provide
flict Detection andAggregate Operational Intent Conformance
additional, value-added capabilities and still be compliant with
Monitoring services;
thisspecificationaslongasthevalue-addedcapabilitiesdonot
(2)Conformance Monitoring for Situational Awareness
conflict with the services defined in this specification, and the
(CMSA);
implementation of services defined in this specification con-
forms to the applicable requirements.
1
This specification is under the jurisdiction of ASTM Committee F38 on
1.7 A USS may also support other UTM roles such as
UnmannedAircraftSystemsandisthedirectresponsibilityofSubcommitteeF38.02
Remote ID and airspace access (for example, the FAA’s
on Flight Operations.
Current edition approved Dec. 1, 2021. Published March 2022. DOI: 10.1520/
LAANC), specified in other documents.
F3548-21.
2
Many terms describe UTM and UAS Service Suppliers. For example, UTM is
1.8 Thisspecificationaddressesaspectscommontoallroles
referred to as U-Space, and USSs are referred to as U-Space Service Providers
and services, such as Discovery and Synchronization Services
(USSPs) in Europe. In the United Kingdom, UTM Service Providers (UTMSP) is
(DSS), security, auditing, and handling of off-n
...

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SCOPE
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SCOPE
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This specification covers general requirements for flat-rolled stainless and heat-resisting steel plate, sheet, and strip. The steel shall be made by one of the following processes: electric-arc, electric-induction, or other suitable processes. Heat and product analyses shall conform to the chemical requirements for each of the specific elements. The material shall undergo mechanical tests such as tension test, hardness test, and bend test. Special tests like intergranular corrosion test, permeability test, Charpy impact testing and tests for detrimental intermetallic phases in wrought duplex stainless steels shall be also be performed when required.
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1.2 In the case of conflict between a requirement of a product specification and a requirement of this specification, the product specification shall prevail. In the case of conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, the purchase order shall prevail. The purchase order requirements shall not take precedence if they, in any way, violate the requirements of the product specification or this specification; for example, by waiving a test requirement or by making a test requirement less stringent.  
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SCOPE
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ASTM
ASTM D8042-18(2023)(Test Method)
Test Method for Shrinkage Temperature of Wet Blue and Wet White

SIGNIFICANCE AND USE
5.1 This test method is designed to determine the temperature at which the Wet Blue or Wet White specimen experiences shrinkage. In this test method, shrinkage occurs as a result of hydrothermal denaturation of the collagen protein molecules which make up the fiber structure of the Wet Blue or Wet White. The shrinkage temperature of Wet Blue or Wet White is influenced by many different factors, most of which appear to affect the number and nature of crosslinking interactions between adjacent polypeptide chains of the collagen protein molecules. The value of the shrinkage temperature of Wet Blue or Wet White is commonly used as an indicator of the type of tannage or the degree of tannage, or both, of that particular Wet Blue or Wet White (especially for the more hydrothermally stable tannages such as chrome tannage).
SCOPE
1.1 This test method covers the determination of the shrinkage temperature of all types of Wet Blue and Wet White. The heating medium is water when the shrinkage temperature is at or below 98 °C. The heating medium is a glycerine-water solution when the shrinkage temperature is above 98 °C.  
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are 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.  
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.

  • Standard
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