定价： 541元 / 折扣价： 482 元 加购物车

定价： 2081元 / 折扣价： 1853 元 加购物车

定价： 2081元 / 折扣价： 1853 元 加购物车

定价： 2081元 / 折扣价： 1853 元 加购物车

定价： 515元 加购物车

5.1 This specification establishes some the key factors which govern the interpretation of videoborescoping tubular products for a specific application. It is recognized that the requirements for one application may be very different than those of another. Therefore, the specification allows for the inspection to be customized for the application by the user by allowing the purchaser to specify parameters which may be important for the application.1.1 This standard covers guidelines for ordering and examining tubular products for sanitary applications by videoborescoping. This method uses movable camera probe at the end of a cable to examine the interior of a tubular product. The image is then transmitted to an external monitor for analysis. The method is normally used when inside surface imperfections, not normally detected by other nondestructive methods, may result in contamination of the product which is contained by the tubular product.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 加购物车

定价： 515元 加购物车

4.1 Hydraulic cleaning methods include equipment that uses water and water velocity to clean the invert and walls of the vitrified clay sewer pipe.4.2 The practice of high-velocity sewer cleaning is best described as a hydraulic cleaning method that uses water pressure to remove obstructions and deposits in sewers or storm drains.4.3 There are different configurations of high-velocity sewer cleaning machines. These units have the capability of generating variable water pressures up to 3500 psi (24 MPa) and variable flow rates of 50-125 gal per min (gpm) (180-473 L per min).4.4 The water tank capacity on these units varies from 1000-1500 gal (3785-5678 L).4.5 The hose lengths vary between 500 and 1000 ft (152 and 305 m) in length with a diameter of 3/4- 11/4 in. NPT.4.6 There are number of different nozzles and tools that may be used during the cleaning process.4.7 Some high-velocity sewer cleaners have a vacuum conveyance system that use large fans or positive displacement vacuum pumps for material removal capabilities. With this type of system, material can be vacuumed from the manhole into a debris tank as it is brought back with the jet or tool and taken to a disposal area. These systems can be either trailer or truck mounted and are generally known as combination machines.4.8 The Occupational Safety and Health Administration (OSHA) has set guidelines for the safe removal of hazardous and nonhazardous substances as stated in OSHA Section 5 of Public Law 91-596; OSHA 29 USC 654; 29 CFR 1910.120; as well as DOT CFR Parts 106-7, 171-180, and 390-397.1.1 This practice covers the personnel requirements, operator training, operating procedures, and recommended equipment performance/design for the proper operation of pressure water-jet cleaning and cutting equipment as normally used by municipalities and contractors tasked with operations, maintenance, cleaning, and pre-rehabilitation cleaning work of vitrified clay mainline sewer pipe.1.2 The term “high-pressure water jetting” covers all water jetting, including the use of jets and hydromechanical tooling at pressures above 2000 psig (0.69 MPa).1.3 This practice covers the “high-pressure water jetting” of vitrified clay pipe and should not be applied to other pipe and pipe lining materials without evaluating the recommended cleaning procedure from the manufacturer to avoid damage.1.4 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.1.5 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 加购物车

4.1 Hydraulic cleaning methods include equipment that uses water and water velocity to clean the invert and walls of Thermoplastic Sewer Pipe.4.2 The practice of high-velocity sewer cleaning is best described as a hydraulic cleaning method that uses water pressure to remove obstructions and deposits in sewers or storm drains.4.3 There are different configurations of high-velocity sewer-cleaning machines. These units can generate variable water pressures up to 5000 psi (34 MPa) and variable flow rates of 50 gal per min (gpm) to 125 gal per min (gpm) (180 L per min to 473 L per min).4.4 The water tank capacity on these units varies from 1000 gal to 1500 gal (3785 L to 5678 L).4.5 The hose lengths vary between 500 ft and 1000 ft (152 m and 305 m) in length with a diameter of 3/4 in. to 11/4 in. NPT.4.6 There are a number of different nozzles and tools that may be used during the cleaning process.4.7 Some high-velocity sewer cleaners have a vacuum conveyance system that uses large fans or positive displacement vacuum pumps for material removal capabilities. With this type of system, material can be vacuumed from the manhole into a debris tank as it is brought back with the jet or tool and taken to a disposal area. These systems can be either trailer- or truck-mounted and are generally known as combination machines.4.8 The Occupational Safety and Health Administration (OSHA) has set guidelines for the safe removal of hazardous and nonhazardous substances as stated in OSHA Section 5 of Public Law 91-596; OSHA 29 USC 654; 29 CFR 1910.120; as well as DOT CFR 49 Parts 106–107, 171–180, and 390–397.1.1 This practice covers the personnel requirements, operator training, Environmental Protection Agency (EPA) Guidelines, operating procedures, and recommended equipment performance/design for the proper operation of pressure water-jet cleaning and cutting equipment as normally used by municipalities and contractors concerned with operations, maintenance, and cleaning work of Municipal Thermoplastic gravity sewer pipe.1.2 The term high-pressure water jetting within this practice covers all water jetting, including the use of jets and hydro mechanical tooling at pressures below 2000 psi (0.69 MPa).1.3 This practice covers the high-pressure water jetting of Thermoplastic pipe and should not be applied to other pipe and pipe-lining materials without evaluating the recommended cleaning procedure from the pipe manufacturer to avoid damage.1.4 This practice applies to High-Density Polyethylene, Polypropylene, and Polyvinyl Chloride (HDPE, PP, and PVC) Thermoplastic sewer pipe manufactured in accordance with ASTM Standards. It may also be considered for use for any similar thermoplastic pipe products not covered by this list but with similar performance characteristics.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 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 5 on Hazards/Safety.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 加购物车

定价： 515元 加购物车

定价： 515元 加购物车

This practice describes the procedures involved in the structural reinforcement, sealing, protection, and rehabilitation of sanitary sewer manholes by the application of a prepackaged protective cementitious liner system to all cleaned interior surface from the bottom of the frame to the bench. The manholes to which the cementitious liner shall be applied may be made of brick, concrete, block, and various other materials. Detailed descriptions are given for all prepackaged materials necessary for this practice that include materials for substrate repairs, cementitious repair materials, infiltration water control materials, cementitious water control materials, chemical grout materials, and lining materials. Detailed descriptions are also provided for each procedure involved here which includes surface preparation, high pressure cleaning, surface repair, mixing of prepackaged cementitious repair materials, spray application of the cement liner by manual surface sealing or centrifugal cast process, and curing of the freshly applied cementitious mortar.1.1 This specification describes all the work required to structurally reinforce, seal, and protect sanitary sewer manholes. Applications include applying a prepackaged cementitious liner that can function as a full depth restoration or a partial depth repair. A uniform high-strength, fiber-reinforced cementitious mortar should be manually sprayed and hand troweled or centrifugally cast in a uniform, prescribed thickness to all cleaned, interior surfaces from the bottom of the frame to the bench. The cementitious liner may be applied to manholes constructed of brick, concrete, block, and various other materials.1.2 A manufacturer’s approved applicator shall furnish the complete application of the protective, prepackaged cementitious liner material. All of the cleaning, preparation, and application procedures shall be in accordance with the manufacturer’s recommendations.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 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. Manholes are permit required confined spaces in accordance with OSHA definition and should be treated as such, requiring confined space entry permits, appropriate monitoring equipment, and the associated personal protective equipment.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.

定价： 515元 加购物车

4.1 The inspection of installed thermoplastic storm and sewer pipe verifies proper installation of the product and establishes a baseline for comparison for further evaluation.4.2 This guide is useful as a reference by an owner in preparing project specifications and to identify, evaluate and interpret observations during post installation inspections of pipe.4.3 Field evaluations either remotely or with person entry should be made by an independent 3rd party engineering firm or duly appointed representative of the owner.1.1 This guide identifies pipeline components, recommended protocols and evaluation criteria to consider in the inspection and acceptance of installed thermoplastic pipe by either person-entry, or remote inspection.1.2 This guide is intended for installation related observations and assumes that pre-installation inspection has been completed and all final settlement of fill has occurred. Inspection should be a minimum of 30 days after installation. This inspection period could be increased to accommodate the installer’s warranty period, which is typically one year or greater.NOTE 1: Pipe types covered under this standard are typically installed under the AASHTO LRFD Bridge Construction Specifications or Practice D2321.1.3 It applies to the thermoplastic non-pressure gravity flow storm and sewer pipe manufactured in accordance with Specifications D3034, F679, F714, F794, F894, F949, F1803, F2306, F2435, F2562, F2648, F2763, F2764, F2881, F2947, F3123, ISO 21138, ISO 4435, ISO 8772 and ISO 8773. It may also be considered for use for any similar thermoplastic pipe products not covered by this list but with similar physical or performance characteristics if approved by the owner.1.4 Person entry is normally used unless extenuating circumstances preclude this type inspection by the engineer. Remote inspection is recommended for use for pipe diameters of 30 in. [750 mm] and smaller unless otherwise specified by owner or engineer. Person entry ultimately depends on the safety, size, and environmental consideration assessments by the engineer.1.5 Access of installed pipe for manual inspection should follow OSHA 29 CFR PART 1926 SUBPART AA or ISO 45001, or any other applicable regulations for confined space entry. 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.1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.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.

定价： 590元 加购物车

4.1 This guide provides information which the regulator/permit officials, engineers, waste disposal operators, and others will find helpful to (1) understand and distinguish between the many choices available, (2) understand the performance feature considerations for living up to EPA regulations for landfill daily covers, and (3) understand the various requirements and differences for putting these covers into practice at landfills.1.1 This guide is intended to assist specifiers and end users in assessing the different options available for sanitary landfill daily cover materials described as alternative (non-soil) daily covers (ADCs). Traditional daily cover consists of at least 6 in. (15 cm) of soil spread over the working faces of sanitary landfills. Alternative systems are attractive to landfill operations in order to conserve landfill disposal space, among other reasons.1.2 This guide assists in understanding different performance features of broad classifications of ADCs, and determining the extent and degree to which different ADCs are able to “control disease vectors, fires, odors, blowing litter, and scavenging, without presenting a threat to human health and the environment,” as intended by United States Environmental Protection Agency (USEPA) regulations.1.3 This guide is not intended to provide cost information regarding the various ADCs. As a standard guide, it does not dictate a protocol for the practice and testing of ADCs, but rather provides valuable information, guidance, and recommendations to interested parties concerning the many options available.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.1.4.1 Exception—Metric units are used in 6.2.9.2.1.5 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.

定价： 590元 加购物车

定价： 590元 加购物车