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定价： 345元 / 折扣价： 294 元

This specification covers two sizes of extra-high-strength grade of concentric-lay steel wire strand, composed of seven, zinc-coated steel wires, specifically intended for use as the supporting messenger in Figure 8-type communication and electrical cables. Steel wires shall be manufactured by the open-hearth, basic-oxygen, or electric-furnace process. Materials shall adhere to specified mechanical and physical requirements such as breaking strength, elongation, ductility, nominal diameter, and coating weight and adherence. Zinc coatings shall be continuous and of reasonably uniform thickness, and wires shall be free from imperfections not consistent with good commercial practice.1.1 This specification covers two sizes of extra-high-strength grade of concentric-lay steel wire strand, composed of seven, zinc-coated steel wires, specifically intended for use as the supporting messenger in Figure 8-type communication and electrical cables.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 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

5.1 This test method provides for the measuring of the minimum concentration of oxygen in a flowing mixture of oxygen and nitrogen that will just support flaming combustion of plastics. Correlation with burning characteristics under actual use conditions is not implied.5.2 In this test method, the specimens are subjected to one or more specific sets of laboratory test conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this test to predict changes in the fire-test-response characteristics measured. Therefore, the results are valid only for the fire-test-exposure conditions described in this test method.1.1 This fire-test-response standard describes a procedure for measuring the minimum concentration of oxygen, expressed as percent volume, that will just support flaming combustion in a flowing mixture of oxygen and nitrogen.1.2 This test method provides three testing procedures. Procedure A involves top surface ignition, Procedure B involves propagating ignition, and Procedure C is a short procedure involving the comparison with a specified minimum value of the oxygen index.1.3 Test specimens used for this test method are prepared into one of six types of specimens (see Table 1).1.4 This test method provides for testing materials that are structurally self-supporting in the form of vertical bars or sheet up to 10.5-mm thick. Such materials are solid, laminated or cellular materials characterized by an apparent density greater than 15 kg/m3.1.5 This test method also provides for testing flexible sheet or film materials, while supported vertically.1.6 This test method is also suitable, in some cases, for cellular materials having an apparent density of less than 15 kg/m3.NOTE 1: Although this test method has been found applicable for testing some other materials, the precision of the test method has not been determined for these materials, or for specimen geometries and test conditions outside those recommended herein.1.7 This test method measures and describes the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.1.8 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.9 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. Specific hazards statement are given in Section 10.1.10 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests.NOTE 2: This test method and ISO 4589-2 are technically equivalent when using the gas measurement and control device described in 6.3.1, with direct oxygen concentration measurement.1.11 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： 646元 / 折扣价： 550 元 加购物车

4.1 This practice establishes a standard control methodology to aid in fulfillment of shortages derived from production requirements or equipment failures.4.2 This practice encourages an inclusive understanding and communication of the control and tracking of assets, and enables meaningful discussion between parties with interest in the asset.4.3 This practice is intended to foster and enable additional standard practices related to or based on these terms and concepts.1.1 This practice covers the process by which open production and failure related demand requirements are fulfilled using existing equipment components.NOTE 1: Differing approval requirements are generally dictated by ownership issues. For example, approvals for cannibalization/reclamation of company-owned property assets may vary substantially from that required for customer-owned assets. In all cases, the specific approach to approvals and the levels of approval required are prescribed by the entity with title to/ownership of the asset. These requirements are internal to the owning entity. In general, company-owned assets are handled in accordance with established practice specific to each individual entity while customer-owned property is handled based upon established practices specific to each entity or as specified within a contractual document.1.2 This practice is intended to be applicable and appropriate for all asset-holding entities.1.3 This practice covers property assets categorized as equipment.1.4 This practice can be applied to an individual asset, groupings of assets, or to all, or a subset of an entity’s assets.1.5 This practice clarifies and enables effective and efficient support of assets in accordance with the provisions of Practice E2279.1.6 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.

定价： 515元 / 折扣价： 438 元 加购物车

1. Scope 1.1 This Standard covers the design, fabrication, qualification, installation, and inspection of CANDU nuclear power plant electrical and instrument air support power systems. These support power systems are part of the category of systems ca

定价： 910元 / 折扣价： 774 元

1. Scope This section of the guide describes the tasks required for planning of maintenance and maintenance support. They should be performed during the system acquisition phase in order to meet the availability objectives in the operational phase. The

定价： 1092元 / 折扣价： 929 元

4.1 Disposition of aluminum-based spent nuclear fuel will involve:4.1.1 Removal from the existing storage or transfer facility,4.1.2 Characterization or treatment, or both, of the fuel or the resulting waste form, or both,4.1.3 Placement of the waste form in a canister,4.1.4 Placement of the canister in a safe and environmentally sound interim storage facility,4.1.5 Removal from the interim storage facility and transport to the repository,4.1.6 Placement in a waste container,4.1.7 Emplacement in the repository, and4.1.8 Repository closure and geologic disposal. Actions in each of these steps may significantly impact the success of any subsequent step.4.2 Aluminum-based spent nuclear fuel and the aluminum-based waste forms display physical and chemical characteristics that differ significantly from the characteristics of commercial nuclear fuels and from high level radioactive waste glasses. For example, some are highly enriched and most have heterogeneous microstructures that include very small, uranium-rich particles. The impact of this difference on repository performance must be evaluated and understood.4.3 The U.S. Nuclear Regulatory Commission has licensing authority over public domain transportation and repository disposal (and most of the interim dry storage) of spent nuclear fuels and high-level radioactive waste under the requirements established by 10 CFR 60, 10 CFR 71, and 10 CFR 72. These requirements outline specific information needs that should be met through test protocols, for example, those mentioned in this guide. The information developed from the tests described in this guide is not meant to be comprehensive. However, the tests discussed here will provide corrosion property data to support the following information needs.4.3.1 A knowledge of the solubility, leaching, oxidation/reduction reactions, and corrosion of the waste form constituents in/by the repository environment (dry air, moist air, and repository relevant water) (see 10 CFR 60.112 and 135).4.3.2 A knowledge of the effects of radiolysis and temperature on the oxidation, corrosion, and leaching behavior (see 10 CFR 60.135).4.3.3 A knowledge of the temperature dependence of the solubility of waste form constituents plus oxidation and corrosion products (see 10 CFR 60.135).4.3.4 Information from laboratory experiments or technical analyses, or both, about time dependence of the internal condition of the waste package (see 10 CFR 60.143 and 10 CFR 72.76).4.3.5 Laboratory demonstrations of the effects of the electrochemical differences between the aluminum-based waste form and the candidate packaging materials on galvanic corrosion (see 10 CFR 71.43) or the significance of electrical contact between the waste form and the packaging materials on items outlined in 4.3.1 – 4.3.4 (see 10 CFR 60.135), or both.4.3.6 Information on the risk involved in the receipt, handling, packaging, storage, and retrieval of the waste forms (see 10 CFR 72.3).4.3.7 Information on the physical and chemical condition of the waste form upon repository placement so that items outlined in 4.3.1 – 4.3.4 can be evaluated (see 10 CFR 60.135).4.3.8 Knowledge of the degradation of the waste form during interim storage so that operational safety problems with respect to its removal from storage can be assessed, if such removal is necessary (see 10 CFR 72.123).4.3.9 Knowledge of the condition of the waste form prior to repository placement so that items outlined in 4.3.1 – 4.3.4 are properly addressed (see 10 CFR 60.135).4.4 Conditions expected during each stage of the disposition process must be addressed. Exposure conditions anticipated over the interim storage through geologic disposition periods include dry and moist air, and aqueous environments. The air environments are associated with interim storage and the early stages of repository storage while the aqueous environments arise after water intrusion into the repository has caused corrosion-induced failure of the waste package.1.1 This guide covers corrosion testing of aluminum-based spent nuclear fuel in support of geologic repository disposal (per the requirements in 10 CFR 60 and 40CFR191). The testing described in this document is designed to provide data for analysis of the chemical stability and radionuclide release behavior of aluminum-based waste forms produced from aluminum-based spent nuclear fuels. The data and analyses from the corrosion testing will support the technical basis for inclusion of aluminum-based spent nuclear fuels in the repository source term. Interim storage and transportation of the spent fuel will precede geologic disposal; therefore, reference is also made to the requirements for interim storage (per 10 CFR 72) and transportation (per 10 CFR 71). The analyses that will be based on the data developed are also necessary to support the safety analyses reports (SARs) and performance assessments (PAs) for disposal systems.1.2 Spent nuclear fuel that is not reprocessed must be safely managed prior to transportation to, and disposal in, a geologic repository. Placement in an interim storage facility may include direct placement of the irradiated fuel or treatment of the fuel prior to placement, or both. The aluminum-based waste forms may be required to be ready for geologic disposal, or road ready, prior to placement in extended interim storage. Interim storage facilities, in the United States, handle fuel from civilian commercial power reactors, defense nuclear materials production reactors, and research reactors. The research reactors include both foreign and domestic reactors. The aluminum-based fuels in the spent fuel inventory in the United States are primarily from defense reactors and from foreign and domestic research reactors. The aluminum-based spent fuel inventory includes several different fuel forms and levels of 235U enrichment. Highly enriched fuels (235U enrichment levels >20 %) are part of this inventory.1.3 Knowledge of the corrosion behavior of aluminum-based spent nuclear fuels is required to ensure safety and to support licensing or other approval activities, or both, necessary for disposal in a geologic repository. The response of the aluminum-based spent nuclear fuel waste form(s) to disposal environments must be established for configuration-safety analyses, criticality analyses, PAs, and other analyses required to assess storage, treatment, transportation, and disposal of spent nuclear fuels. This is particularly important for the highly enriched, aluminum-based spent nuclear fuels. The test protocols described in this guide are designed to establish material response under the repository-relevant conditions.1.4 The majority of the aluminum-based spent nuclear fuels are aluminum clad, aluminum-uranium alloys. The aluminum-uranium alloy typically consists of uranium aluminide particles dispersed in an aluminum matrix. Other aluminum-based fuels include dispersions of uranium oxide, uranium silicide, or uranium carbide particles in an aluminum matrix. These particles, including the aluminides, are generally cathodic to the aluminum matrix. Selective leaching of the aluminum in the exposure environment may provide a mechanism for redistribution and relocation of the uranium-rich particles. Particle redistribution tendencies will depend on the nature of the aluminum corrosion processes and the size, shape, distribution and relative reactivity of the uranium-rich particles. Interpretation of test data will require an understanding of the material behavior. This understanding will enable evaluation of the design and configuration of the waste package to ensure that unfilled regions in the waste package do not provide sites for the relocation of the uranium-rich particles into nuclear critical configurations. Test samples must be evaluated, prior to testing, to ensure that the size and shape of the uranium-rich particles in the test samples are representative of the particles in the waste form being evaluated.1.5 The use of the data obtained by the testing described in this guide will be optimized to the extent the samples mimic the condition of the waste form during actual repository exposure. The use of Practice C1174 is recommended for guidance. The selection of test samples, which may be unaged or artificially aged, should ensure that the test samples and conditions bound the waste form/repository conditions. The test procedures should carefully describe any artificial aging treatment used in the test program and explain why that treatment was selected.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

4.1 This guide is relevant to the design of specialized support equipment and tools that are remotely operated, maintained, or viewed through shielding windows, or combinations thereof, or by other remote viewing systems.4.2 Hot cells contain substances and processes that may be extremely hazardous to personnel or the external environment, or both. Process safety and reliability are improved with successful design, installation, and operation of specialized mechanical and support equipment.4.3 Use of this guide in the design of specialized mechanical and support equipment can reduce costs, improve productivity, reduce failed hardware replacement time, and provide a standardized design approach.1.1 Intent: 1.1.1 This guide presents practices and guidelines for the design and implementation of equipment and tools to assist assembly, disassembly, alignment, fastening, maintenance, or general handling of equipment in a hot cell. Operating in a remote hot cell environment significantly increases the difficulty and time required to perform a task compared to completing a similar task directly by hand. Successful specialized support equipment and tools minimize the required effort, reduce risks, and increase operating efficiencies.1.2 Applicability: 1.2.1 This guide may apply to the design of specialized support equipment and tools anywhere it is remotely operated, maintained, and viewed through shielding windows or by other remote viewing systems.1.2.2 Consideration should be given to the need for specialized support equipment and tools early in the design process.1.2.3 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 Caveats: 1.3.1 This guide is generic in nature and addresses a wide range of remote working configurations. Other acceptable and proven international configurations exist and provide options for engineer and designer consideration. Specific designs are not a substitute for applied engineering skills, proven practices, or experience gained in any specific situation.1.3.2 This guide does not supersede federal or state regulations, or both, or codes applicable to equipment under any conditions.1.3.3 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： 646元 / 折扣价： 550 元 加购物车

1.1 This specification pertains to rotary wing transport units involved in patient transportation and care at the basic life support level. It outlines the minimum requirements, including personnel, and the patient care equipment and supplies, that must be met before the unit can be classified as an basic life support transport unit. 1.2 This specification describes; the minimum vehicle configuration and capability, the minimum number of seats for personnel, and the provisions for the minimum medical equipment and supplies. 1.3 Other specifications of Committee F-30 will apply.

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This specification covers rotary wing aircraft involved in patient prehospital emergency medical care and transportation. It outlines the minimum requirements, including personnel, and patient care equipment and supplies, that must be met before the aircraft can be classified as a rotary wing air ambulance unit. This specification describes a suitable rotary wing aircraft, which together with the specified personnel, equipment, and supplies, will provide patient care, at least to national standards for basic life support, throughout the medical mission. It applies to all the medical activities that involve rotary wing air ambulance operation at the basic life support level, including on-scene work and interhospital transfer. Application of this specification will ensure that the air ambulance will be able to provide a well-established level of patient care. The rotary wing basic life support air ambulance shall consist of three components: the rotary wing medical transport vehicle, transport personnel, and patient care equipment and supplies in accordance with this specification. The minimum personnel requirement for the rotary wing basic life support air ambulance shall be the FAA flight crew requirement for the aircraft and for each patient, one qualified air-medical crewmember. All pieces of medical equipment and supplies used in rotary wing operations shall be maintained in accordance with the specified requirements.1.1 This specification pertains to fixed (airplanes) and rotary-wing (helicopters) aircraft used for prehospital emergency medical care and transportation of patients by air, collectively air ambulances. It outlines the minimum requirements, including personnel, patient care equipment, and supplies that shall be met before the aircraft can be classified as an air ambulance.1.2 Recommendations for basic life support (BLS) air ambulances are contained in the first part of this specification that defines the minimum requirements for aircraft configuration and capability, the minimum number of seats for personnel, and the minimum medical equipment and supplies.1.3 Recommendations for advanced life support (ALS) air ambulances include the first part of this specification that defines the minimum requirements for aircraft configuration and capability, the minimum number of seats for personnel, and the minimum medical equipment and supplies. Additional requirements for ALS are found in Annex A1.1.4 Recommendations for specialized medical support (SMS) air ambulances include those for BLS and may include some or all of the ALS requirements that define the minimum requirements for aircraft configuration and capability, the minimum number of seats for personnel, and the minimum medical equipment and supplies. Additional requirements for SMS air ambulances are found in Annex A2.1.5 In this specification, minimum requirements for air ambulances providers are identified, however, ambulance services, under the direction of their medical director, are encouraged to use them as a core list and adjust their configuration or manifest or both according to their mission profile and patient population.1.6 Units—The values stated in inch-pound units are to be regarded as the 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 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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CSA Preface This is the second edition of CAN/CSA-ISO 14004, Environmental management systems - General guidelines on principles, systems and support techniques, which is an adoption without modification of the identically titled ISO (International Org

定价： 1092元 / 折扣价： 929 元

This specification pertains to fixed wing aircraft (airplanes) used for patient prehospital emergency medical care and transportation. It describes the minimum aircraft configuration and capability, the minimum number of seats for personnel, and the provisions for the minimum medical equipment and supplies for fixed wing basic life support air ambulances. This will also assist in the definition of appropriate care, increase public awareness of the high standard available, and provide a nationally accepted guideline. The fixed wing basic life support air ambulance shall consist of three components: the fixed wing medical transport vehicle (airplane), transport personnel, and patient care equipment and supplies The three components must be licensed/certified by the appropriate governmental authority.1.1 This specification pertains to fixed wing aircraft (airplanes) used for patient prehospital emergency medical care and transportation. It outlines the minimum requirements, including personnel, and patient care equipment and supplies, that must be met before the aircraft can be classified as a fixed wing air ambulance unit.1.2 The first part of this specification (Sections through ) describes the minimum aircraft configuration and capability, the minimum number of seats for personnel, and the provisions for the minimum medical equipment and supplies for fixed wing basic life support air ambulances.1.3 The provisions of this specification plus the provisions of the Advanced Life Support (ALS) Annex comprise the specification for fixed wing advanced life support air ambulances. See Sections 1 and 1.1 of the Advanced Life Support (ALS) Annex for the scope for fixed wing advanced life support air ambulances.1.4 The provisions of this Sspecification plus the provisions of the Advanced Life Support Annex, plus the provisions in this Specialized Medical Support (SMS) Annex comprise the specification for fixed wing specialized medical support air ambulances. See Sections 1 through 1.3 of the Specialized Medical Support (SMS) Annex for the scope for fixed wing specialized medical support air ambulances.

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1.1 This specification pertains to rotary wing transport units involved in patient transportation and care at the advanced life support level. It outlines the minimum requirements, including personnel and the patient care equipment and supplies, that must be met before the unit can be classified as an advanced life support transport unit. 1.2 This specification describes; the minimum vehicle configuration and capability, the minimum number of seats for personnel, and the provisions for the minimum medical equipment and supplies. 1.3 Other specifications of Committee F-30 will apply.

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1.1 This guide covers testing protocols for testing the pyrophoricity/combustibility characteristics of metallic uranium-based spent nuclear fuel (SNF). The testing will provide basic data for input into more detailed computer codes or analyses of thermal, chemical, and mechanical SNF responses. These analyses would support the engineered barrier system (EBS) design bases and safety assessment of extended interim storage facilities and final disposal in a geologic repository. The testing also could provide data related to licensing requirements for the design and operation of a monitored retrievable storage facility (MRS) or independent spent fuel storage installation (ISFSI).1.2 This guide describes testing of metallic uranium and metallic uranium-based SNF in support of transportation (in accordance with the requirements of 10CFR71), interim storage (in accordance with the requirements of 10CFR72), and geologic repository disposal (in accordance with the requirements of 10CFR60/63). The testing described herein is designed to provide basic data related to the evaluation of the pyrophoricity/combustibility characteristics of containers or waste packages containing metallic uranium SNF in support of safety analyses (SAR), or performance assessments (PA) of transport, storage, or disposal systems, or a combination thereof.1.3 Spent nuclear fuel that is not reprocessed must be emplaced in secure temporary interim storage as a step towards its final disposal in a geologic repository. In the United States, SNF, from both civilian commercial power reactors and defense nuclear materials production reactors, will be sent to interim storage, and subsequently, to deep geologic disposal. U.S. commercial SNF comes predominantly from light water reactors (LWRs) and is uranium dioxide-based, whereas U.S. Department of Energy (DOE) owned defense reactor SNF is in several different chemical forms, but predominantly (approximately 80 % by weight of uranium) consists of metallic uranium.1.4 Knowledge of the pyrophoricity/combustibility characteristics of the SNF is required to support licensing activities for extended interim storage and ultimate disposition in a geologic repository. These activities could include interim storage configuration safety analyses, conditioning treatment development, preclosure design basis event (DBE) analyses of the repository controlled area, and postclosure performance assessment of the EBS.1.5 Metallic uranium fuels are clad, generally with zirconium, aluminum, stainless steel, or magnesium alloy, to prevent corrosion of the fuel and to contain fission products. If the cladding is damaged and the metallic SNF is stored in water the consequent corrosion and swelling of the exposed uranium enhances the chemical reactivity of the SNF by further rupturing the cladding and creating uranium hydride particulates and/or inclusions in the uranium metal matrix. The condition of the metallic SNF will affect its behavior in transport, interim storage or repository emplacement, or both, and therefore, influence the engineering decisions in designing the pathway to disposal.1.6 Zircaloy spent fuel cladding has occasionally demonstrated pyrophoric behavior. This behavior often occurred on cladding pieces or particulate residues left after the chemical dissolution of metallic uranium or uranium dioxide during fuel reprocessing of commercial spent fuel and/or extraction of plutonium from defense reactor spent fuel. Although it is generally believed that zirconium is not as intrinsically prone to pyrophoric behavior as uranium or plutonium, it has in the past ignited after being sensitized during the chemical extraction process. Although this guide primarily addresses the pyrophoricity of the metallic uranium component of the spent fuel, some of the general principles involved could also apply to zirconium alloy spent fuel cladding.1.7 The interpretation of the test data depends on the characteristics of the sample tested and/or the usage to which the test results are put. For example, usage could include simple comparison of the relative ignition temperature of different sample configurations or as inputs to more complex computer simulations of spontaneous ignition. The type and the size of the SNF sample must be chosen carefully and accounted for in the usage of the data. The use of the data obtained by the testing described herein may require that samples be used which mimic the condition of the SNF at times far into the future, for example, the repository postcontainment period. This guide does not specifically address methods for `aging' samples for this purpose. The section in Practice C 1174 concerning the accelerated testing of waste package materials is recommended for guidance on this subject.

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