This specification describes the properties of devices or assemblies suitable for use as flexible transition couplings for underground drainage and sewer piping systems. Couplings that may include bushings or inserts, and meet the requirements of this specification are suitable for joining plain end pipe or fittings. Couplings shall be permitted to have a center stop, the components shall be designed so that the elastomeric material is compressed to form a hydrostatic seal when the joint is assembled. Assemblies shall be tested in different areas and each component shall conform to specified physical and mechanical requirements, namely: hardness, tensile strength, elongation, heat aging, hardness, ozone resistance, water absorption, and chemical resistance for the elastomeric materials; tension band performance, torque resistance, free running torque for the stainless steel materials; and deflection sealing resistance, and shear loading resistance for the joint assemblies.1.1 This specification describes the properties of devices or assemblies suitable for use as flexible transition couplings, hereinafter referred to as “couplings,” for underground drainage and sewer piping systems.1.2 Flexible transition couplings that conform to the requirements of this standard are suitable for joining plain-end pipe or fittings. The pipe to be joined shall be of similar or dissimilar materials, size, or both.1.3 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.1.4 The ASTM standards referenced herein shall be considered mandatory.1.5 The committee with jurisdiction over this standard is not aware of another comparable standard for materials covered in this standard.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 The assembly force of a conduit joining system is one measure of the ease of which the conduit system can be assembled and installed in the field. This test method provides a means by which to quantify the assembly force of gasketed conduit joining systems. The results of the testing can be used to compare and categorize the assembly force of different designs of gasketed conduit joining systems.5.2 This test method is not intended for use as a quality control test.5.3 This test method can be used for comparison of gasketed conduit joining systems on the basis of assembly force. No information about joint sealing performance can be obtained from the use of this test method.5.4 This test method covers all plastic conduit with push-on joints that use flexible elastomeric gaskets located in the bell to provide the joint seal.5.5 This test method is also applicable to all fittings that are fabricated from conduit covered in 5.4 and that utilize the same type of push-on joints as the conduit covered in 5.4, and that are intended for use with the conduit types described in 5.4. For purposes of this test method, assembly force data obtained from the testing of the conduit that is the parent stock of a fitting shall apply to the fitting also.1.1 This test method covers the determination of the relative force required to assemble plastic underground conduit joints that use flexible elastomeric seals located in the bell.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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1.1 This practice covers general and basic procedures related to the proper installation of thermoplastic, flexible, pressure piping, 36 in. nominal size and smaller, for underground irrigation systems. Because there is considerable variability in end-use requirements, soil conditions, and thermoplastic piping characteristics, it is the intent of this practice to outline general objectives and basics of proper installation and to provide pertinent references, rather than to prescribe detailed installation procedures. 1.2 This practice should not be used for installing thermoplastic underground sewer, drain, potable water, conduit or gas service piping. 1.3 The values stated in inch-pound units are to be regarded as the standard. Values in parentheses are given for information only. 1.4 This standard does not purport to address all of the safety problems, 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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1.1 This practice covers a uniform protocol for evaluating the performance of systems used to detect releases of regulated substances from underground storage tank systems or facilities. This practice applies to users, manufacturers, vendors, government regulators, and others using or concerned with release detection systems. 1.2 This practice covers release detection systems that are used internally, externally, or within the interstitial area of an underground storage tank system that has secondary containment. 1.3 This practice does not specify minimum performance standards. 1.4 The release detection system may consist of an individual or multiple tests. The release detection system may operate in a continuous or intermittent mode, and may produce either quantitative-output (measured value) or qualitative-output (on/off) results. 1.5 The release detection system may be applicable to any part of a storage tank system, a single storage tank system, or combination of systems. The manufacturer may further limit the use of a release detection system to specific test conditions (for example, tank sizes, geographical regions, etc.). 1.6 The evaluation given in this practice provides two separate performance descriptions: an estimate of the performance characteristics of the release detection system, and an estimate of probability of release detection and probability of false alarm. 1.6.1 This practice requires that the system performance characteristics must be determined for all release detection systems as described in 1.2. 1.6.2 Further, this practice currently requires the determination of an estimate of probability of false alarm. 1.6.3 Estimates of probability of detecting releases and false alarms for external release detection systems are not required. 1.7 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only. 1.8 This standard does not purport to address all of the safety problems, 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. A full disclosure is required if hazardous materials are released into the environment as part of the test procedure. 1.9 The sections and subsections in this practice are arranged in the following order: Section 1 Terminology 2 Release Detection System Description 3 General Description 3.1.1 Intended Use 3.2 Operational Conditions 3.3 Recommended Calibration Schedule 3.4 Expected Lifetime 3.5 Safety Consideration 3.6 Development of Performance Data 4 Performance Characteristics 4.1.1 Estimate of Probability to Detect a Release and False Alarm 4.2 Evaluation of Performance Data 5 General 5.1.1 Performance Characteristics 5.2 System Response to the Signal 5.2.1 Specificity 5.2.2 Lower Detection Limit 5.2.3 Dynamic Range 5.2.4 Precision and Bias 5.2.5 Response Time 5.2.6 Effects of Physical Properties 5.2.7 System Response to Individual Sounds of Interference or 5.2.8 Ambient Noise Estimate of Probability to Detect a Release and False Alarm 5.3 Marking with ASTM Designation 6 APPENDIXES Definitions X1.1 Technical Guidance to Calculate Performance Characteristics of X1.2 Release Detection Systems Technical Guidance to Calculate the Performance of a X1.3 Release Detection System by Determining Probability of Detecting a Release and False Alarm

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This specification covers the dimensional, design, and performance requirements for five types (Types EB-20, EB-35, DB-60, DB-100, and DB-120) of smooth-wall poly(vinyl chloride) (PVC) conduits and fittings for underground communication and electrical power wires and cables. Conduits and fittings shall be evaluated on impact resistance and strength, joint tightness, pipe stiffness, and extrusion quality.1.1 This specification covers the requirements for single wall and coextruded cellular core smooth-wall poly(vinyl chloride) conduit and fittings for underground communication and electrical power wire and cables. Plastics which does not meet the material requirements specified in Section 5 is excluded from single layer and all coextruded layers.1.2 The values given in parentheses are for information only.1.3 The following safety hazards caveat pertains only to the test method portion, Section 8, of this specification: 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 This practice is intended to standardize the minimum structural design loading for underground precast concrete utility structures.5.2 The user shall verify the anticipated field conditions and requirements with design loads greater than those specified in this standard.1.1 This practice describes the minimum live loads and dead loads to be applied when designing monolithic or sectional precast concrete utility structures. Concrete pipe, box culverts, and material covered in Specification C478 are excluded from this practice.NOTE 1: For additional information see AASHTO Standard Specification for Highway Bridges, Seventeenth Edition.NOTE 2: The purchaser is cautioned that he must properly correlate the anticipated loading conditions and the field requirements with the design loads used.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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This specification covers the recommended design criteria and manufacturing practices for monolithic or sectional precast concrete utility structures. Forms shall be accurately constructed and strong enough to maintain the structure's dimensions within the tolerances. Forms shall be cleaned before each use. The aggregates shall be sized, graded, proportioned, and thoroughly mixed in a batch mixer with proportions of cement and water as will produce a homogeneous concrete having the required specified compressive strength. Concrete shall be deposited as nearly as practicable in its final position. Structures shall be cured by an accepted industry method that will develop the required 28-day compressive strength without affecting the long-term durability of the concrete. The elastic method of structural design or the strength design method of reinforced concrete design, shall be used to design the concrete sections, including the reinforcement required, when the structure is subjected to the specified loading conditions. The structural design shall take into consideration the number, placement, and size of access openings. The minimum floor thickness resulting from slope shall be considered as the nominal floor thickness in the design of the structure. Duct terminators, knockouts, and sumps shall be designed to carry the loads imposed upon them. Compressive-strength of the concrete shall be tested to meet the requirements prescribed. Joints in sectional precast concrete structure shall be designed so as to be self-aligning when assembling sections of the structure. Design of lifting devices shall conform to requirements specified.1.1 This specification covers the recommended design criteria and manufacturing practices for monolithic or sectional precast concrete utility structures. Concrete pipe and box culverts are not covered under this specification. Also, precast concrete manholes covered in Specification C478 are excluded from this specification.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

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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1.1 This guide provides tank owners/operators, regulators, equipment manufacturers/suppliers, and others concerned with tanks, with information relevant to the selection and use of release detection devices for underground storage tanks (USTs) that contain petroleum products or other regulated substances. As used in the phrase "release detection devices," the meaning of release includes leak or spill. The "state-of-the-art" in release detection technology and techniques is rapidly evolving; therefore, this guidance cannot and will not provide design-related answers to when, where, or how to use or select appropriate detection devices. Rather, this guide introduces a common approach for using and selecting detectors as part of the design and use of an overall detection system. For more detailed information on release detection, Appendix X2 at the end of this guide should be reviewed. 1.2 This standard does not purport to address all of the safety problems, 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 practice is for use by designers and specifiers, manufacturers, installation contractors, regulatory agencies, owners, and inspection organizations involved in the construction of buried fiberglass pipelines. As with any practice, modifications may be required for specific job conditions, or for special local or regional conditions. Recommendations for inclusion of this practice in contract documents for a specific project are given in Appendix X1.1.1 This practice establishes procedures for the burial of pressure and nonpressure “fiberglass” (glass-fiber-reinforced thermosetting-resin) pipe in many typically encountered soil conditions. Included are recommendations for trenching, placing pipe, joining pipe, placing and compacting backfill, and monitoring deflection levels. Guidance for installation of fiberglass pipe in subaqueous conditions is not included.1.2 Product standards for fiberglass pipe encompass a wide range of product variables. Diameters range from 1 in. to 13 ft (25 mm to 4000 mm) and pipe stiffnesses range from 9 to over 72 psi (60 to 500 kPa) with internal pressure ratings up to several thousand pound force per square inch. This standard does not purport to consider all of the possible combinations of pipe, soil types, and natural ground conditions that may occur. The recommendations in this practice may need to be modified or expanded to meet the needs of some installation conditions. In particular, fiberglass pipe with diameters of a few inches are generally so stiff that they are frequently installed in accordance with different guidelines. Consult with the pipe manufacturer for guidance on which practices are applicable to these particular pipes.1.3 The scope of this practice excludes product-performance criteria such as a minimum pipe stiffness, maximum service deflection, or long-term strength. Such parameters may be contained in product standards or design specifications, or both, for fiberglass pipe. It is incumbent upon the specified product manufacturer or project engineer to verify and ensure that the pipe specified for an intended application, when installed in accordance with procedures outlined in this practice, will provide a long-term, satisfactory performance in accordance with criteria established for that application.NOTE 1: There is no known ISO equivalent to this standard.NOTE 2: A discussion of the importance of deflection and a presentation of a simplified method to approximate field deflections are given in AWWA Manual of Practice M45 Fiberglass Pipe Design.1.4 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.1.5 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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This practice covers the procedures to be followed in the planning, site preparation, and installation of underground precast concrete utility structures. The installation area shall be surveyed using the workprint and a checklist to identify the work to be done and to determine that the plans are correct. Permits required to do work in accordance with the detail plans shall be secured before starting the job. All permits or a record of the permits shall be retained on the job for immediate reference. Safety requirements for construction shall be in accordance with all federal, state, and local regulations. Shoring for construction shall be in accordance with all federal, state, and local regulations.1.1 This practice covers the procedures to be followed in the planning, site preparation, and installation of underground precast concrete utility structures. Concrete pipe and box culverts are not covered under this practice. Also, precast concrete manholes covered in Specification C478/C478M are excluded from this practice.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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3.1 Underground electrical and communication conduit should be impervious to groundwater in order to prevent damage to conductors and utility vaults. The bladder test described in this test method may be used to qualify potential gasketed conduit systems by indicating whether the joint system will prevent water infiltration.3.2 This test method can be used to qualify joints for plastic underground conduits using flexible elastomeric seals. However, it should not be assumed that a joint system that passes this test method will be able to seal under cases of misinstallation or abuse, or both.3.3 This test method covers all of the following gasketed conduit types: encased burial (EB) excluding EB20, direct burial (DB), telecommunications, cable television, and Schedule 40 conduit and Schedule 80 conduit. Trade sizes covered are 2-in. nominal size and larger. (See UL 651; NEMA TC-2, TC-6, and TC 8; and Specification F512.)3.4 This test method also covers fittings that are intended for use with the conduit types described in 3.3 and which use flexible elastomeric seals.1.1 This test method covers the determination of the water infiltration resistance of gasketed plastic underground conduit joints using a pressurized water bladder apparatus.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 This test is a guide for evaluating magnesium anodes. The degree of correlation between this test and service performance has not been fully determined.5.2 Test specimens from the same casting may not be identical because of inhomogeneities in the casting. A method of ensuring that identical test specimens are being evaluated is to retest a test specimen. The surface of the test specimen should be smoothed by machining before retesting. The new diameter should be measured and the test current adjusted so that the retest current density is 0.039 mA/cm2 (0.25 mA/in.2).5.3 The values of potential and Ah per unit mass consumed as measured by this test method, may not agree with those found in field applications. It is unlikely that field results of Ah per unit mass consumed would ever be greater than those measured in this test. However, actual test comparisons are not sufficient to allow precise correlation of laboratory and field results.1.1 This test method covers a laboratory procedure that measures the two fundamental performance properties of magnesium sacrificial anode test specimens operating in a saturated calcium sulfate, saturated magnesium hydroxide environment. The two fundamental properties are electrode (oxidation) potential and ampere hours (Ah) obtained per unit mass of specimen consumed. Magnesium anodes installed underground are usually surrounded by a backfill material that typically consists of 75 % gypsum (CaSO4·2H2O), 20 % bentonite clay, and 5 % sodium sulfate (Na2SO4). The calcium sulfate, magnesium hydroxide test electrolyte simulates the long term environment around an anode installed in the gypsum-bentonite-sodium sulfate backfill.1.2 This test method is intended to be used for quality assurance by anode manufacturers or anode users. However, long term field performance properties may not be identical to property measurements obtained using this laboratory test.NOTE 1: Refer to Terminology G193 for terms used in this test method.1.3 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.1.4 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. For specific precautions, See Section 8 and Paragraph 9.1.1.1.5 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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4.1 Environmentally sound management of underground storage tank systems involves a broad range of preventative maintenance activities directed toward preventing accidental releases of regulated substances, and effectively detecting and responding to such releases when, and if, they do occur. Numerous technical guidelines are presently available addressing specific procedures for release prevention and response for underground tank systems, including guidelines for tank system design, installation, operation and maintenance, leak detection, spill control, periodic equipment inspections, corrective action for affected environmental media, tank system closure, and operator training. This guide presents an overview, identifying key management considerations and referring the user to other related ASTM standards and industry guidelines for more detailed information.4.2 Tank System Design and Installation—The first step in environmentally sound management of tank systems is to design and install the tank system so as to minimize the potential for release of regulated substances to the environment. This guide addresses key considerations related to the types of tank systems to be used, compatibility of regulated substances to construction materials, types of spill containment and overfill prevention devices, corrosion protection, leak detection proper installation practices, and system operation.4.3 Preventative Maintenance—Even for properly designed and installed tank systems, practical measures are needed to detect and terminate leaks and respond to releases in a timely manner so as to minimize regulated substance losses and associated environmental effects. This guide reviews general considerations including release detection measures, possible indicators of a release, appropriate record-keeping procedures, tank system inspection, equipment testing, response planning and release control measures. Some preventative maintenance activities are recommended while others are mandated by state or federal regulations. This guide addresses federally mandated activities4.4 Inspections—Inspections are a critical component of a sound UST management plan. Both third-party professional and operator inspections can identify potential risks associated with component compromise and operational issues that may increase the risk of an uncontained release. Some inspections are required by regulatory requirements. The scope, frequency and necessary qualifications to perform required inspections vary by jurisdiction. This guide outlines the scope and schedule of federally required walkthrough inspections.4.5 Equipment Testing—Testing can confirm the functional status of various UST components. Some UST equipment and components must be tested in accordance with federal regulations. Spill prevention equipment and containment sumps used for interstitial monitoring of piping must be tested at least once every three years. Electronic and mechanical release detection components must be tested annually. Cathodic protection systems must be tested within six months of installation, then at least every three years and within six months of any repair activity. This guide outlines the scope and schedule of federally required equipment testing.4.6 Fueling Procedure—Careful loading, unloading, and dispensing of liquids to and from underground storage tanks is the most important day-to-day activity to ensure proper handling of liquids and prevention of releases. This guide is developed to addresses UST system management. Dispensers and dispensing activities may be sources of releases but are not considered a component of the UST system and are not include in the regulatory requirements addressed by this guide.4.7 Corrective Action for Affected Environmental Media—Following discovery and control of a release regulated substance from an underground tank system, corrective actions may be required for affected soil and groundwater as needed to protect human health, safety, and environmental resources. This guide reviews a risk-based process for investigation, evaluation, and remediation of affected environmental media consistent with the guidelines provided in Guide E2081.4.8 Tank System Closure—If it is determined that an underground tank system will no longer be used to store regulated substances, the system must be taken out of service, either temporarily or permanently, and, when appropriate, decommissioned and removed in a manner that minimizes the potential for future releases or safety hazards. This guide reviews the general procedures for properly removing tank systems from service, as well as the options for tank system closure by means of tank excavation and backfill placement or in-place closure methods.4.9 Tank Management Practice Education, and Operator Training—Personnel training is a key element of successful environmental management of UST systems. It is important that persons involved in the installation, operation, or maintenance of tank systems understand the release prevention, appropriate leak detection, and response procedures. This guide outlines the scope and schedule of several key training areas that may be appropriate depending on individual job assignments, including: tank system installation and maintenance; general measures for release prevention; leak detection equipment operation and maintenance; release control and emergency response measures; and regulated substance and waste handling measures. This guide outlines the scope of federally mandated operator training.4.10 Recognized Practice—Some federally mandated testing and inspection requirements can be satisfied by following a practice developed by a nationally recognized association or independent testing laboratory such as provided in 40 CFR §280.35(a)(1)(ii)(B) and 40 CFR §280.40(a)(3). Many such practices are referenced in this guide. Not all practices developed by nationally recognized associations or independent testing laboratories are accepted by the USEPA or the implementing agency. To determine if a practice satisfies the federal requirements, the owner or operator should consult with the implementing agency.1.1 The framework discussed in this guide is limited to facilities with underground storage tanks (USTs) storing regulated substances at ambient temperature and atmospheric pressure. This guide is not intended to provide detailed technical specifications for implementation of the approaches described in this document, nor to be used as an enforcement tool, but rather to identify the important information used for environmental management of underground tank systems. The term “must” is used where United States federal requirements apply. References to ASTM standards and other industry guidelines have been provided to address implementation of the approaches discussed in this guide. Many states and some local agencies have adopted rules that place additional responsibilities on the owners/operators of UST systems. Refer to state and local regulations that may contain additional requirements. It is not possible to identify all considerations or combinations of conditions pertinent to a unique underground storage tank system.1.2 This guide addresses principal considerations related to the prevention of, and response to environmental releases from tank systems and is organized in the sections listed below:    Section 1:  Section 2: Lists relevant ASTM Standards and other industry or regulatory guidance documents Section 3: Defines the key terminology used in this guide Section 4: Describes the significance and use of this guide Section 5: Tank System Design and Installation Section 6: Preventive Maintenance and Inspection Plan Section 7: Fueling Procedure Section 8: Dispensing Activities Section 9: Release Response Plan Section 10: Corrective Action for Affected Environmental Media Section 11: Tank System Closure Section 12: UST Management Practice and Operator Training Appendix X1: Recurring Release Detection and Cathodic Protection Requirements (Quick Glance) is intended to be a quick reference guide for monitoring information Related Material: Documents related to environmental management of underground storage tanks1.3 The values stated in inch-pound 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. Some specific hazards statements are given in Section 7 on Hazards.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 Each device has unique flow patterns and turbulence characteristics. In addition, each device exhibits a wide range of efficiencies as discharge, particle size, particle density, and flow viscosity (that is, water temperature) change. The testing procedure in Section 7 will help develop the parameters necessary to input into a function that describes the performance of a device under a wide range of application conditions. Specifically, this test standard produces a characteristic curve that describes the hydraulic head-discharge relationship in a hydrodynamic separator over a range of flow rates typical in system operation.1.1 This test method concerns measurement of selected hydraulic characteristics of hydrodynamic separators and underground settling devices critical to their function as stormwater treatment devices.1.2 Units tested shall be of a size commonly manufactured and available for purchase. In order to facilitate testing it is permissible to substitute alternate materials for the housing and structural components of the test units if operational components are at full size, with identical dimensions, configurations and materials specified for commercial use. Scale models are not permissible.1.3 As each stormwater treatment device is unique in design, so are its hydraulic characteristics (flow versus head and loss coefficients). A sufficient number of accurately measured data points are needed to properly define the hydraulic characteristics of each test unit. Therefore, it is imperative that the unit setup and subsequent testing methodologies be well defined and executed to ensure accurate flow and elevation data.1.4 The values stated in inch-pound units are to be regarded as standard, except for methods to establish and report sediment concentration and particle size. It is convention to exclusively describe sediment concentration in mg/L and particle size in mm or µm, both of which are SI units. The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. Reporting of test results in units other than inch-pound units shall not be regarded as non-conformance with this test method.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.

定价： 515元 / 折扣价： 438 元 加购物车