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This practice is intended for guidance and instruction of the aircraft and unmanned aircraft systems industries when addressing the requirements of Part 21.1.1 In this practice, certification procedures are provided for Unmanned Aircraft Systems (UAS) in the Light UAS Class and in the Remotely Operated Aircraft (ROA) UAS Classes. Unmanned Aircraft Systems in the Mini UAS and Micro UAS Classes are not considered in this practice, since they do not undergo airworthiness certification.1.2 Citations of Federal Aviation RegulationsWhen citing U.S. Federal Aviation Regulations in this practice, the citation references are based on the following Federal Aviation Regulation structure:1.2.1 The Code of Federal Regulations, Title 14 (14 CFR) comprises Aeronautics and Space Regulations. Chapter 1 of 14 CFR contains the regulations of the Federal Aviation Administration and is subdivided into subchapters and parts:The Parts are further subdivided into Subparts and sections.1.2.2 This practice uses Part 21 as a template. Within the text of the practice:14 CFR Chapter 1 means the whole of Chapter 1 of 14 CFR; andSubchapter C means all of the Parts of Subchapter C of 14 CFR.1.2.3 In compact notation, citation of section 1309 of Part 23, for example, may be designated as "section 23.1309."1.3 Unmanned Aircraft SystemsAn Unmanned Aircraft System (UAS) comprises an unmanned air vehicle, the remote control ground station that provides for the mission management and piloting of the air vehicle, data-links for the exchange of control and sensor payload data and all related interfaces. Any part of the overall system that could affect the airworthiness and safety of the aircraft is subject to the requirements of Part 21.1.4 &inch-pound-units;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 and health practices and determine the applicability of regulatory limitations prior to use.

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4.1 This guide is an educational tool for tank owners, operators, and other users and is not intended for use in certifying compliance with the Federal technical standards for underground storage tanks.4.2 The intent of this guide is to provide an overview of the general requirements. This guide is intended for users who are generally familiar with the requirements of 40 CFR Part 280. The user is advised that this guide does not contain the level of detail necessary to make the determination of whether specific equipment or services meet the detailed technical performance requirements of 40 CFR Part 280.4.3 This guide does not cover state and local requirements, that can be more stringent than the federal rules. Owners and operators are responsible for meeting federal, state, and, in some circumstances, local requirements. It is recommended that owners and operators familiarize themselves with these requirements as well.4.4 Owners or operators may use the sample checklist in Appendix X1 to assist them in determining operational conformance or they may develop their own checklist based upon this guide.4.5 This guide and accompanying appendixes are not intended to be used by state or local UST program authorities as a regulatory or administrative requirement for owners or operators. Use of this guide and appendixes by owners and operators is intended to be a voluntary educational tool for the purposes described in 4.1.1.1 This guide covers information for evaluating tank systems for operational conformance with the Federal technical standards (including the financial responsibility requirements) for underground storage tanks (USTs) found at 40 Code of Federal Register (CFR) Part 280.1.2 This guide does not address the corrective action requirements of 40 CFR Part 280.1.3 To the extent that a tank system is excluded or deferred from the federal regulations under Subpart A of 40 CFR Part 280, it is not covered by this guide.1.4 Local regulations may be more stringent than federal regulation and the reader should refer to the implementing agency to determine compliance.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.

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5.1 This guide describes the use of test methods in Guides F3275 and F3276 to assess the service life of a brush part intended to clean a medical device.5.2 In the case of a brush part intended to clean a lumen, the force required to move a brush part within a tube, an indicator of the friction a brush exerts on a surface, is a measurable parameter that can change over time and will decrease as the brush part loses integrity.5.3 In the case of a brush part intended to clean the external surface, the force required to move the brush across a surface and the pressure the brush exerts on that surface are measurable parameters that can change over time and will decrease as the brush part loses integrity.5.4 By providing objective, repeatable methods for evaluating performance under test conditions, this guide can improve the ability to assess the effectiveness of various brush part designs.1.1 This guide describes methods for assessing the service life, under prescribed laboratory conditions, of a brush part designed to clean a medical device. The method utilizes force testers to mechanically actuate a brush part at a constant rate. This action continues until the brush part demonstrates a significant reduction in cleaning power as measured by the force exerted during testing.1.2 The test methods utilized in this guide are those described in Guides F3275 and F3276. In this guide, the number of repetitions is open-ended and determined by the measurable fatigue of the brush part as measured by a reduction in force, as well as any observation of wear or damage to the brush part.1.3 Brushes designed to clean medical devices after clinical use play an important role in the effective reprocessing of those medical devices. Instructions for use from the brush manufacturer should supply information related to the service life of the brush. This may be stated in terms of (1) a time period; (2) the number of uses; (3) inspection of the brush for wear and damage.1.4 Inspection for wear should always be a part of the instructions for use of a brush. Application of this guide can help to determine like mode(s) of observable failure of a brush part.1.5 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.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.

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This test method details the standard procedures for the determination of the bond and cohesion of one-part elastomeric solvent release-type sealants after high- and low-temperature aging. The materials and apparatuses needed for this test procedure are an extension machine, a forced-draft type oven, a convection type oven, a freezer chest or cold box, mortar blocks, glass plates, aluminum alloy plates, and polyethylene spacer bars. This test method also requires the use of the following reagents: acetone or methyl ethyl ketone solvents; detergent solution; and distilled water.1.1 This test method determines the bond and cohesion of one-part, elastomeric, solvent release-type sealants after high- and low-temperature aging.1.2 The subcommittee with jurisdiction is not aware of any similar ISO 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 establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.NOTE 1: Currently there is no ISO standard similar to this test method.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.

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This document specifies the features of laser-based powder bed fusion of metals (PBF-LB/M) and provides detailed design recommendations.Some of the fundamental principles are also applicable to other additive manufacturing (AM) processes, provided that due consideration is given to the process-specific features.This document also provides a state of the art review of design guidelines associated with the use of powder bed fusion (PBF) by bringing together relevant knowledge about this process and by extending the scope of ISO/ASTM 52910.

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This document specifies the features of laser-based powder bed fusion of polymers (LB-PBF-P) and provides detailed design recommendations. Some of the fundamental principles are also applicable to other additive manufacturing (AM) processes, provided that due consideration is given to process-specific features. This document also provides a state-of-the-art review of design guidelines associated with the use of powder bed fusion (PBF) by bringing together relevant knowledge about this process and by extending the scope of ISO/ASTM 52910.

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1.1 This document specifies the features of electron beam powder bed fusion of metals (PBF-EB/M) and provides detailed design recommendations.1.2 Some of the fundamental principles are also applicable to other additive manufacturing (AM) processes, provided that due consideration is given to process-specific features.1.3 This document also provides a state of the art review of design guidelines associated with the use of powder bed fusion (PBF) by bringing together relevant knowledge about this process and by extending the scope of ISO/ASTM 52910 (1).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.

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1.1 This specification covers additive manufacturing of parts manufactured via laser beam powder bed fusion (PBF-LB) processing of Grade 4340 (UNS G43400) used in transportation applications, including automotive applications. Parts made using this processing method require heat treatment to achieve maximum strength and are typically used in applications that require mechanical properties similar to wrought Grade 4340 (UNS G43400) products. Products built to this specification may require additional post-processing in the form of machining, polishing etc. to meet necessary surface finish and dimensional tolerances.1.2 This specification describes the required facility, training, equipment, and processing requirements necessary to support the production of parts with properties and associated quality metrics outlined in a part classification structure.1.3 This specification is intended for the use of purchasers or producers, or both, of PBF-LB Grade 4340 (UNS G43400) parts for defining the requirements based on classification methodology. These requirements shall be agreed upon by the part supplier and purchaser.1.4 Users are advised to use this specification as a basis for obtaining parts that will meet the minimum acceptance requirements established and revised by consensus of committee members.1.5 User requirements considered more stringent may be met by additional requirements in the purchase order.1.6 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.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.

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