5.1 This practice describes a procedure for preparing and storing a suspension of C. difficile spores that meets the following acceptance criteria: (1) spore titer of approximately 5.0×108 spores/mL, (2) spore purity of ≥95 %, and (3) a mean log10 reduction (LR) value >5.0 for 3 carriers exposed to 5000 ppm and a mean LR of <3.0 for 3 carriers exposed to 1500 ppm sodium hypochlorite. These acceptance criteria are necessary in order to use the spore suspension to evaluate the performance of antimicrobial formulations using Test Method E3218.1.1 This practice specifies the procedures for producing and storing standardized suspensions of Clostridioides difficile spores for the evaluation of the sporicidal activity of antimicrobial formulations using the Quantitative Method for Testing Antimicrobial Agents against Spores of C. difficile on Hard, Non-porous Surfaces or other procedures.1.2 This practice may involve hazardous materials, chemicals, and microorganisms and should be performed only by persons with formal training in microbiology.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4 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.1.5 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 specification covers the minimum requirements for production acceptance testing of a powered parachute aircraft. The test includes ground and flight testing. In ground testing, the aircraft shall undergo inspection verification and engine break-in. In flight testing, on the other hand, the aircraft shall be inspected for performance while on a specified flight time, including takeoff and landing, and shall undergo instrument verification. In addition, this specification also provides for post flight acceptance testing, which shall include a review of all flight critical attachments and structures.1.1 The following requirements apply for the manufacture powered parachute aircraft. This specification includes the production acceptance test requirements for powered parachute aircraft.1.2 This specification applies to powered parachute aircraft seeking civil aviation authority approval, in the form of flight certificates, flight permits, or other like documentation.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 requirements 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.

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5.1 This guide is intended to illustrate the fabrication of ultrasonic reference blocks that are representative of the production material to be examined. Care in material selection and fabrication can result in the manufacture of reference blocks that are ultrasonically similar to the production material thus eliminating the reference block as an examination variable.1.1 This guide covers general procedures for the material selection and fabrication of reference blocks made of metal or metal alloys and intended to be used for the examination of the same or similar production materials by pulsed longitudinal ultrasonic waves applied perpendicular to the beam entry surface. Primary emphasis is on solid materials but some of the techniques described may be used for midwall examination of pipes and tubes of heavy wall thickness. Near-surface resolution in any material depends upon the characteristics of the instrument and search unit employed.1.2 This guide covers the fabrication of reference blocks for use with either the immersion or the contact method of ultrasonic examination.1.3 Reference blocks fabricated in accordance with this guide can be used to determine proper ultrasonic system operation. Area-amplitude and distance-amplitude curves can also be determined with these reference blocks.1.4 This guide does not specify reference reflector sizes or product rejection limits. It does describe typical industry fabrication practices and commonly applied tolerances where they lend clarity to the guide. In all cases of conflict between this guide and customer specifications, the customer specification shall prevail.1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.6 This standard does not purport to address 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 to determine the applicability of regulatory limitations prior to use.

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5.1 A nano-object at any specific time can be considered well-defined.5.2 The life-cycle of a nano-object can be viewed as a series of production processes that transforms starting materials or a well-defined nano-object into a new, equally well-defined nano-object.5.3 Each step of the life-cycle can be considered a separate production action and can be described by the information categories and descriptors within this guide.5.4 The following are examples of nano-object productions that can be described by this guide.5.4.1 The creation of carbon nanotubes by arc discharge.5.4.2 The coating of a nano-object in a random or controlled manner when placed in a liquid.NOTE 1: The reactivity of nano-objects makes it likely that even with the utmost precautions, various features and characteristics may change over time, for example, when a nano-object is placed in a liquid and coated. Such a coating can significantly change the properties, functionalities, and reactivity of the nano-object. This change can be considered one step of a life-cycle and is a production process.NOTE 2: A nano-object may have more than one coating. For example, titania nano-objects are often coated by alumina by manufacturers to control certain properties. When these previously coated nano-objects are placed in liquid containing biological molecules, they can acquire a second coating. It can require very careful administration of test procedures to ensure the test results can meaningfully be ascribed to characteristics and features of the “initial” nano-objects.5.4.3 A nano-object experiences changes to its size, shape, physical structure, and other characteristics.NOTE 3: Events such as shock (unexpected forces), temperature and pressure changes, humidity changes, shipping, dissolution, and exposure to acids and bases can result in a changed nano-object with significantly different properties, functionalities, and reactivity. These events can be considered a production process.5.4.4 Unless care is taken to carefully control potential changes to a nano-object before testing, measurement results should be carefully examined for unintended changes through good laboratory practices, statistical analysis of all data, and verification that test samples maintain their integrity throughout the testing process.5.5 A nano-object can be subjected to a series or sequence of production steps. The steps can be fully planned and controlled or some steps can happen due to random events. This guide is applicable to describe one, many, or all steps in detail.NOTE 4: For example, the testing of a nano-object for potential toxic effects may involve a sequence of steps as shown in Table 1. As can be seen, steps such as storage, insertion into biological media, or sampling can possibly involve random changes to the resulting nano-object.5.6 Use of this guide to describe the individual production steps leading to the creation of a tested nano-object can be important in ascertaining the cause-effect relationship between a test result and a nano-object that was made in one of the sequence production steps prior to creation of the tested nano-object.5.7 The reactivity of individual and collections of nano-objects gives rise to questions about their stability under “non-reactive” conditions such as movement, temperature changes, exposure to heat, and shock. These occurrences are frequent enough in the life cycle of nano-objects that additional information categories and descriptors should be used as detailed in 6.2.5.8 ISO TC 229 has produced ISO/TS 80004-1:2010(en) that defines terminology applicable to nanomanufacturing.5.9 Information on quality control with respect to the production process or production results is covered by ASTM and ISO quality control guides.1.1 This guide provides guidelines for describing the production of one or more individual nano-objects. It establishes essential and desirable information categories and descriptors important to specify the production process, including the starting materials, the process itself, and the resulting nano-objects.1.2 This guide is designed to be directly applicable to reporting production information and data for nano-objects in most circumstances, including but not limited to reporting original research results in the archival literature, developing of ontologies, database schemas, data repositories and data reporting formats, specifying regulations, and enabling commercial activity.1.3 This guide is applicable to an individual nano-object and a collection of nano-objects.1.4 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.1.5 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 The objective of this practice is to provide guidelines for the preparation of samples for interlaboratory studies to evaluate new test methods or for quality control purposes.5.2 Samples prepared using these guidelines may be used for the testing of the precision and bias mandatory for ASTM test methods. Such an evaluation is necessary to provide guidance to the user as to the reliability of measurements that can be expected by its use. The statements are developed on the basis of user experience (ordinarily through interlaboratory studies) with the test method.5.3 The availability of appropriate samples is a key requirement for interlaboratory studies.5.4 The homogeneity of the sample produced for interlaboratory studies must be small enough so that the variance caused by the sample is small compared to the variance of the test being performed.1.1 This practice describes the essential activities that are required to produce samples for interlaboratory studies.1.2 The suitability of a particular interlaboratory sample developed using this guide will depend on the tests being made.1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4 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.1.5 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 practice allows the user to compute the true hydraulic efficiency of a pumped well in a confined aquifer from a constant rate pumping field test. The procedures described constitute the only valid method of determining well efficiency. Some practitioners have confused well efficiency with percentage of head loss associated with laminar flow, a parameter commonly determined from a step-drawdown test. Well efficiency, however, cannot be determined from a step-drawdown test but only can be determined from a constant rate test.5.2 Assumptions: 5.2.1 Control well discharges at a constant rate, Q.5.2.2 Control well is of infinitesimal diameter.5.2.3 Data are obtained from the control well and, if available, a number of observation wells.5.2.4 The aquifer is confined, homogeneous, and extensive. The aquifer may be anisotropic, and if so, the directions of maximum and minimum hydraulic conductivity are horizontal and vertical, respectively.5.2.5 Discharge from the well is derived exclusively from storage in the aquifer.5.3 Calculation Requirements—For the special case of partially penetrating wells, application of this practice may be computationally intensive. The function fs shown in Eq 6 should be evaluated using arbitrary input parameters. It is not practical to use existing, somewhat limited, tables of values for fs and, because this equation is rather formidable, it may not be tractable by hand. Because of this, it is assumed the practitioner using this practice will have available a computerized procedure for evaluating the function fs. This can be accomplished using commercially available mathematical software including some spreadsheet applications. If calculating fs is not practical, it is recommended to substitute the Kozeny equation for the Hantush equation as previously described.NOTE 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.NOTE 2: Commercially available software is available for the calculating, graphing, plotting, and analyses of this practice. The user is responsible for verifying the correctness of the formulas, graphs, plots and analyses of the software.1.1 This practice describes an analytical procedure for determining the hydraulic efficiency of a production well in a confined aquifer. It involves comparing the actual drawdown in the well to the theoretical minimum drawdown achievable and is based upon data and aquifer coefficients obtained from a constant rate pumping test.1.2 This analytical practice is used in conjunction with the field procedure, Test Method D4050.1.3 The values stated in inch-pound units are to be regarded as standard, except as noted below. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard. The reporting of results in units other than inch-pound shall not be regarded as nonconformance with this standard.1.3.1 The gravitational system of inch-pound units is used when dealing with inch-pound units. In this system, the pound (lbf) represents a unit of force (weight), while the unit for mass is slugs.1.4 Limitations—The limitations of the technique for determination of well efficiency are related primarily to the correspondence between the field situation and the simplifying assumption of this practice.1.5 All observed and calculated values shall conform to the guidelines for significant digits and round established in Practice D6026, unless superseded by this standard.1.5.1 The procedures used to specify how data are collected/recorded or calculated, in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives; and it is common practice to increase or reduce significant digits of reported date to be commensurate with these considerations. It is beyond the scope of this standard to consider significant digits used in analysis method for engineering design.1.6 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of the practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without the consideration of a project’s many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process.1.7 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.1.8 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 The requirements in this document are for part manufacturers using additive manufacturing techniques and are independent of the used material and manufacturing method.1.2 This document specifies criteria for AM relevant processes as well as quality-relevant characteristics and factors along the additive system operations and defines activities and sequences within an additive manufacturing production site.1.3 This document is applicable to the additive manufacturing technologies defined in ISO/ASTM 52900 and defines quality assurance measures along the manufacturing process.1.4 Environment, health and safety aspects are not covered comprehensively in this document. The corresponding content is addressed in the equipment manufacturer guidelines and ISO/ASTM 52931, ISO 27548,2 ISO/ASTM 52933, and ISO/ASTM 52938-1.31.5 This document provides requirements that are additional to those provided by a quality management system (such as, ISO 9001, ISO/TS 22163, ISO 19443, EN 9100, ISO 13485, IATF 16949). Additionally, this document can be used to establish quality management system relevant content that is specific to AM-technology.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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4.1 In 2014, the U.S. EPA published the final rules adding renewable fuel pathways under the RFS Program. The rules qualified kernel fiber as a cellulosic feedstock meeting the 60 % greenhouse gas (GHG) reduction and qualifies for the generation of D3 RINs. These rules allow for two approaches for kernel fiber conversion (CFR 40, Part 80 and EPA-HQ-OAR-2012-0401; FRL-9910-40-OAR):4.1.1 Producers of cellulosic fuels derived from conversion of feedstocks that are predominantly cellulosic, where “predominantly cellulosic” is defined as feedstock that has an average adjusted cellulosic content of 75 %, measured on a dry mass basis; furthermore, this ‘‘adjusted cellulosic content’’ is the percent of organic (non-ash) material that is cellulose, hemicellulose, or lignin (CFR 40, Part 80 and EPA-HQ-OAR-2012-0401; FRL-9910-40-OAR).4.1.2 Producers of cellulosic fuels derived from the simultaneous conversion of feedstocks that are predominantly cellulosic and feedstocks that are not predominantly cellulosic (CFR 40, Part 80 and EPA-HQ-OAR-2012-0401; FRL-9910-40-OAR).4.2 Producers that wish to gain approval to the pathway that claims simultaneous conversion of feedstocks that are predominantly cellulosic and feedstocks that are not predominantly cellulosic are required to quantify the amount of renewable fuel that is derived specifically from cellulosic content and from starch. To accomplish this, the producer needs to quantify the amount of cellulosic content and starch present before the conversion process begins and after the conversion process is complete. These measurements of cellulosic content and starch content before and after conversion are used to calculate a converted fraction of each, which is then used to ratio the renewable fuel produced accordingly and assign those respective gallons the D6 or D3 RIN code (CFR 40, Part 80 and EPA-HQ-OAR-2012-0401; FRL-9910-40-OAR).1.1 This practice provides criteria for the sampling, testing, and calculation methodologies used for the quantification of the converted fraction of starch and cellulosic content. Furthermore, this practice covers procedures for the management of the standard error associated with the sampling and testing of before conversion and after conversion samples from a fuel ethanol production facility.1.1.1 This practice can be used to determine the volume of renewable fuel produced from the simultaneous conversion of starch and cellulosic material eligible for generating D3 RINs under the United States (U.S.) Renewable Fuel Standard (RFS).1.2 This practice covers the collection and testing of heterogeneous material, including, but not limited to: corn, sorghum, wheat, mash, beer, whole stillage, dried distillers grains with solubles (DDGS), and dried distillers grains.1.3 This practice is intended to be used in renewable fuel production facilities designed to produce renewable alcohols. Use of this practice in any other type of process has not been reviewed.1.4 This practice can be utilized using either manual or automatic sampling techniques, so long as the criteria of this practice are followed.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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1.1 This standard defines the production acceptance requirements for a small unmanned aircraft system (sUAS).1.2 This standard is applicable to sUAS that comply with design, construction, and test requirements identified in Specification F2910. No sUAS may enter production until such compliance is demonstrated.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 and health practices and determine the applicability of regulatory limitations prior to use.

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AbstractThese practices are intended for production and preparation of gray iron castings for porcelain enamelling. Design of the casting should be such as to minimize variations in temperature during firing and cooling. The governing factors in pattern layout and shop control are elimination of discontinuities, chill, and inclusions at or near the surfaces to be coated. Visual inspection methods for enamelling surfaces should place emphasis on the detection and remedy of porosity, sand inclusions, and gas holes. Porosity consisting of essentially subsurface pinholes, shallow covered blows, body scars, or shrinkage near the surface may or may not be acceptable for correction, depending upon severity.1.1 These practices are intended to indicate certain casting characteristics and pre-enameling practices which will facilitate finishing by the wet- or dry-process methods of porcelain enameling. All of the listed recommendations are based on experiences with gray iron casting and enameling.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.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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5.1 Test specimens are used to determine the engineering properties of PM materials, for example, tensile strength, ductility, impact energy, etc.; property data that are essential to the successful use of PM material standards. Processing PM test specimens under production conditions is the most efficient method by which to obtain reliable PM material property data since in most cases it is impractical or impossible to cut test bars from sintered parts.5.2 The performance characteristics of metal powders, for example, compressibility, green strength and dimensional changes associated with processing are evaluated using PM test specimens under controlled conditions. The data obtained are important to both metal powder producers and PM parts manufacturers.5.3 PM test specimens play a significant role in industrial quality assurance programs. They are used to compare properties of a new lot of metal powder with an established lot in an acceptance test and are used in the part manufacturing process to establish and adjust production variables.5.4 In those instances where it is required to present equivalent property data for a production lot of PM parts, standard test specimens compacted from the production powder mix to the same green density can be processed with the production PM parts and then tested to obtain this information.5.5 Material property testing performed for industrial or academic research and development projects uses standard PM test specimens so the test results obtained can be compared with previous work or published data.5.6 Powder metallurgy test specimens may have multiple uses. The dimensions and tolerances given in this standard are nominal in many cases. The user is cautioned to make certain that the dimensions of the test specimen are in agreement with the requirements of the specific test method to be used.1.1 These standard practices cover the specifications for those uniaxially compacted test specimens that are used in ASTM standards, the procedures for producing and preparing these test specimens, and reference the applicable standards.1.2 Basic tool design and engineering information regarding the tooling that is required to compact the test specimens and machining blanks are contained in the annexes.1.3 This standard is intended to be a comprehensive one-source document that can be referenced by ASTM test methods that utilize PM test specimens and in ASTM PM material specifications that contain the engineering data obtained from these test specimens.1.4 These practices are not applicable to metal powder test specimens that are produced by other processes such as cold isostatic pressing (CIP), hot isostatic pressing (HIP), powder forging (PF) or metal injection molding (MIM). They do not pertain to cemented carbide materials.1.5 Detailed information on PM presses, compacting tooling and sintering furnaces, their design, manufacture and use are not within the scope of these practices.1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.7 This standard may involve hazardous materials, operations, and equipment. 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.1.8 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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4.1 Overview: 4.1.1 Assurance of product quality is derived from careful attention to many factors but is not limited to raw material acceptance, software workflow definition, product and process design and control, printing and post processing, equipment and systems installation, maintenance, and in-process and end-product testing.4.1.2 By managing these factors, a manufacturer can establish confidence that all finished manufactured units from successive lots will be acceptable and meet lot release criteria.4.1.3 The basic principles of quality assurance (QA) have as their goal the production of articles that are fit for their intended use. These principles may be stated as:4.1.3.1 Quality, safety, and effectiveness shall be designed and built into the product as well as the production process.4.1.3.2 AM product characteristics all cannot currently be verified after the process without destructive testing and therefore requires validation. Suitable consideration should be designed into the product and controls should be applied to the process during process validation.4.1.3.3 Critical steps of the production process impacting quality shall be controlled to maximize the probability that the finished product meets all quality and design specifications.4.1.4 Process validation is a key element in ensuring that these QA goals are met. Routine end-product testing alone is often not sufficient to assure product quality. Some end-product tests have limited sensitivity. In some cases, destructive testing would be required to show that the manufacturing process is adequate, and in other situations, end-product testing does not reveal all variations that may occur in the product that may have an impact on device performance. However, successfully validating a process may reduce the dependence on intensive in-process and finished product testing. Note that, in most cases, end-product testing plays a major role in supporting QA goals, that is, validation and end-product testing are not mutually exclusive.4.1.5 Key process variables should be monitored and documented using statistical process control where applicable. Analysis of the data collected from monitoring should establish the potential variability of process parameters for individual production runs to ensure that a process is within acceptable control limits and the equipment can consistently produce the product within specification.4.2 Preliminary Considerations: 4.2.1 A manufacturer should evaluate all factors that affect product quality through appropriate documented process characterization.4.2.2 Risk management and an analysis file shall be created in line with ISO 14971. These factors may vary considerably among different products, manufacturing technologies, and facilities. No single approach to process validation will be appropriate and complete in all cases; however, the following quality steps should be undertaken.4.2.3 All pertinent aspects of the production processes that have an impact on device design (product’s end use) should be considered during process validation. These aspects include, but are not necessarily limited to, performance, reliability, and stability. Performance limits and variation should be established for each characteristic acceptance criteria and expressed in readily measurable terms. Once a product specification is defined it is important that any changes to it be made in accordance with documented change control procedures and the device history file.1.1 This practice provides an overview of how to perform process validation for medical devices manufactured using PBF/LB/M. The topics that will be covered include machine qualifications, software used in the manufacturing process, the importance of design specification and verification on process validation, and raw materials.1.2 This practice also provides recommendations for process characterization, risk management, additive manufacturing (AM) facility qualification, and process control as a prerequisite for qualification activity, including installation qualification/operational qualification/performance qualification (IQ/OQ/PQ).1.3 The practice is primarily focused on non-device-specific AM system(s) validation. Additional information may be needed in reference to the performance of the actual device.1.4 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.1.5 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 Subject to the limitations listed in 1.3, these test methods can be used to optimize paint application processes.1.1 These test methods cover the determination of the transfer efficiency of spray-applied coatings under general plant conditions. Transfer efficiency is the ratio of paint solids deposited to the total paint solids used during the application process, expressed as a percent.1.2 The transfer efficiency is calculated from the weight or volume of the paint solids sprayed and that of the paint solids deposited on the painted part.1.3 Limitations include the ability to accurately determine the amount of paint solids deposited on the part and the capability of accurate measurement of the amount of paint sprayed.1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.NOTE 1: These test methods apply to general plant production equipment and procedures. A method specific to automotive plants is defined in Test Method D5066.NOTE 2: The relationship between volatile organic compound emission rates and transfer efficiency in automobile and light duty truck topcoat operations, EPA 450/3-88-01, referenced in Test Method D5066 does not apply to general production facilities.NOTE 3: A single-point transfer efficiency measurement may not represent the entire process.NOTE 4: The operator and the spray-application equipment-operating conditions during the transfer efficiency measurement should be representative of normal operating conditions.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. For specific hazard statements see Section 7, and 10.3.1.NOTE 5: These test methods have not been adopted by federal regulatory agencies for demonstration of compliance with air pollution regulations such as VOC, HAPS, etc.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.

定价： 590元 / 折扣价： 502 元 加购物车

This practice establishes the controls necessary for production of extrusions cooled from an elevated temperature shaping (extrusion) process for the production of T1, T2, T5 and T10–type tempers. The equipment shall be used for billet preheating, extruding and quenching. Quenching methods may consist of, but are not limited to, air, water or water/glycol mixture in forced air, water spray, fog or mist, standing wave, a quench tank or another pressurized water device, or a combination thereof. Surveillance tests should include tensile properties for all material and metallographic examination to confirm that the elevated temperature shaping process has not resulted in eutectic melting or subsurface porosity from hydrogen diffusion. Specimens shall be sectioned in the plane perpendicular to the direction of the extrusion, polished to an appropriate fineness, mildly etched with an etchant such as Keller’s reagent to reveal any evidence of eutectic melting. Specimens shall also be subjected to tension and hardness tests. During the extrusion process, the following temperature measuring points should be monitored and controlled as per the producer’s internal procedures. The measuring points include but are not limited to: billet or log temperature in the heating equipment, billet or log temperature after heating and before charging into the extrusion press, temperature of the extrudate at the press exit, temperature of the extrudate at quench entry, temperature of the extrudate at the completion of quench, and billet temperature shall not exceed the maximum temperature for the alloy. Artificial aging shall be accomplished using times and temperatures as necessary to achieve required properties.1.1 This practice establishes the controls necessary for production of extrusions cooled from an elevated temperature shaping (extrusion) process for the production of T1, T2, T5 and T10-type tempers (see ANSI H35.1/H35.1M).1.2 This practice is for production of extruded product supplied in the 6xxx and 7xxx alloys shown in Table 1 in the T1, T2, T5 or T10-type tempers (see ANSI H35.1/H35.1M). It contains pertinent information to be used in establishing production practices and is descriptive rather than prescriptive. For the attainment of T3, T4, T6, T7, T8 and T9-type tempers by extrusion press solution heat treatment, refer to Practice B807/B807M.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.

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4.1 Core sampling is an acceptable way of obtaining a test specimen without destroying the usefulness of an anode block.4.1.1 Test specimen obtained by this guide can be used by producers and users of carbon anodes for the purpose of conducting the tests in Note 1 to obtain comparative physical properties.4.2 Sampling shall not weaken the anode or increase the likelihood of premature failure.1.1 This guide covers sampling for prebaked carbon anodes used in the production of aluminum, and details procedures for taking test samples from anode blocks. It covers equipment and procedures for obtaining samples from anode blocks in a manner that does not destroy the block or prevent its subsequent use as originally intended. However, the user must determine the subsequent use of the sampled anode blocks. Preferred locations for taking samples from single units of anodes are covered in this guide.1.1.1 Information for sampling of shaped refractory products, in general, is given in ISO 5022. This standard details the statistical basis for sampling plans for acceptance testing of a consignment or lot. Anodes used in the production of aluminum have specific requirements for sampling and while the statistical basis for sampling given in ISO 5022 applies, further or modified requirements may also apply.1.1.2 Information for sampling of anodes for Al-metal production is given in ISO 8007-2. This standard details the statistical basis for sampling plans for acceptance testing of a consignment or lot.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.NOTE 1: The following ASTM standards are noted as sources of useful information: Test Methods D5502, D6120, D6744, and D6745.1.3 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.

定价： 515元 / 折扣价： 438 元 加购物车