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定价： 605元 / 折扣价： 515 元

定价： 605元 / 折扣价： 515 元

定价： 819元 / 折扣价： 697 元

定价： 605元 / 折扣价： 515 元

定价： 345元 / 折扣价： 294 元 加购物车

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定价： 156元 / 折扣价： 133 元 加购物车

定价： 156元 / 折扣价： 133 元

定价： 156元 / 折扣价： 133 元 加购物车

9.1 The requirements of this specification are intended to provide extruded PVC profile strip suitable for the field fabrication of spirally wound liner pipe for the rehabilitation of existing pipelines and conduits conveying sewage, process flow, and storm water under gravity flowconditions.NOTE 3: Industrial waste disposal lines should be installed only with the specific approval of the cognizant code authority since chemicals not commonly found in drains and sewers and temperatures in excess of 140°F (60°C) may be encountered.AbstractThis specification covers the requirements and test methods for materials, dimensions, workmanship, stiffness factor, extrusion quality, and test procedures for extruded poly(vinyl chloride) (PVC) profile strips used for machine-made field fabrication of spirally wound pipe liners in the rehabilitation of a variety of existing pipelines and conduits including sanitary sewers, storm water sewers, process flow piping, and non-circular pipelines (such as arched or oval shapes and rectangular shapes) under gravity flow conditions. Certification, packaging, and product marking for quality assurance are also considered.1.1 This specification covers requirements and test methods for materials, dimensions, workmanship, stiffness factor, extrusion quality, and a form of marking for extruded poly(vinyl chloride) (PVC) profile strips used for machine made field fabrication of spirally wound pipe liners in the rehabilitation of a variety of gravity applications such as sanitary sewers, storm sewers, and process piping in diameters of 6 to 180 in. and for similar sizes of non-circular pipelines such as arched or oval shapes and rectangular shapes.1.2 Profile strip produced to this specification is for use in field fabrication of spirally wound liner pipes in nonpressure sewer and conduit rehabilitation, where the spirally wound liner pipe is expanded until it presses against the interior surface of the existing sewer or conduit, or, alternatively, where the spirally wound liner pipe is inserted as a fixed diameter into the existing sewer or conduit and the annular space between the liner pipe and the existing sewer or conduit is grouted.1.3 This specification includes extruded profile strips made only from materials specified in 5.1.1.4 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 The following precautionary caveat pertains only to the test method portion, Section 11, 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.1.6 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

1.1 This document specifies requirements for the qualification of operators of laser metal powder bed fusion machines and equipment for additive manufacturing in aerospace applications.1.2 This document is applicable if the operator qualification testing is required by contract or by application standards in the field of aerospace.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： 702元 / 折扣价： 597 元 加购物车