This specification covers the general requirements for materials used in preformed rubber seals that contact the circulating liquid in solar energy systems. Rubber seal can be classified into types, grades and classes. It has two kinds according to what climate they should be used: Type C which is intended for use in cold climates and Type W which is intended for use in warm climates. Its grade designations represent differing degrees of hardness such as Grade 3, Grade 4, Grade 5, Grade 6, Grade 7 and Grade 8. As for the classes, it should be determined into 3 kinds. Class A for seals used with aqueous liquid at a certain maximum service temperature. Class AT for seals used with aqueous liquids at an above maximum service temperature and class N for use with nonaqueous liquids. Different tests shall be conducted in order to determine the following properties of rubber seals in liquid heat-transport systems: compression, resistance to heating, hardness, ultimate elongation, volume, resistance to ozone, resistance to low temperature, and resistance to liquid.1.1 This specification covers the general requirements for materials used in preformed rubber seals that contact the circulating liquid in solar energy systems. Particular applications may necessitate other requirements that would take precedence over these requirements when specified.1.2 This specification does not include requirements pertaining to the design, fabrication, or installation of the seals.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

This specification covers the material requirements for preformed polychloroprene elastomeric joint seals proposed for use in bridges. The multiple-web seals function by compression of the seal between the faces of the joint with the seal folding inward at the top. The seal is installed with a lubricant and is designed to seal the joint and reject incompressibles. The materials shall also conform to the physical properties prescribed herein such as tensile strength, elongation, hardness, ozone resistance, low-temperature recovery, high-temperature recovery, and compression-deflection properties.1.1 This specification covers the material requirements for preformed polychloroprene elastomeric joint seals for bridges. The seal consists of a multiple-web design composed of polychloroprene and functions only by compression of the seal between the faces of the joint with the seal folding inward at the top to facilitate compression. The seal is installed with a lubricant adhesive and is designed to seal the joint and reject incompressibles.NOTE 1: This specification may not be applicable for seals whose height is less than 90 % of its nominal width.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.

定价： 515元 / 折扣价： 438 元 加购物车

4.1 The guide provides recommendations for substrates and methods of surface preparation to be used in comparative tests of building seals and sealants.1.1 This guide describes the recommended standard substrates and their recommended surface preparation for use in standard tests of building seals and sealants.1.2 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.1.3 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

定价： 156元 / 折扣价： 133 元 加购物车

This specification covers the general requirements for materials used in rubber seals of flat-plate solar collectors, except vertically mounted passive collectors. Particular applications may necessitate other requirements that would take precedence over these requirements when specified. The rubber seals are classified into types, grades, and classes: type C - intended for use in cold climates, and type W - intended for use in warm climates; grades 2, 3, 4, 5, 6, 7, and 8 that differ in hardness properties; class PS - preformed rubber seal, and class SC - sealing compound. Seals shall be rubber vulcanizates conforming to the requirements prescribed. The adhesion, volatiles lost, and volatiles condensable shall be tested to meet the requirements prescribed.1.1 This specification covers the general requirements for materials used in rubber seals of flat-plate solar collectors, except vertically mounted passive collectors. Particular applications may necessitate other requirements that would take precedence over these requirements when specified.1.2 The design requirement pertains only to permissible deflections of the rubber during thermal expansion or contraction of the seal in use and the tolerances in dimensions of molded and extruded seals.1.3 This specification does not include requirements pertaining to the fabrication or installation of the seals.1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.5 The following safety hazards caveat pertains only to Section 9, Test Methods, 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： 515元 / 折扣价： 438 元 加购物车

This practice covers methods for testing the physical properties of mechanical (passive) security seals. Where appropriate, the various tests include particular apparatus or procedural specifications required for different types of security seals. A security seal shall be evaluated in accordance with its classification into one of five general groups and its performance in the following six tests: pull (tensile) shear, bending, impact, low temperature impact, and high temperature pull (tensile). A security seal shall receive a grade designation based upon its measured performance in each of the required tests. The seals shall be classified according to groups: Group 1; Group 2; Group 3; Group 4; and Group 5. Pull test, shear test, bending test, impact test, and extreme temperature tests shall be performed to conform with the specified requirements.1.1 This practice covers methods for testing the physical properties of mechanical (passive) security seals. Where appropriate, the various tests include particular apparatus or procedural specifications required for different types of security seals. This practice does not address adhesive (tape or label style) or electronic types of security seals.1.2 This practice will serve as a basis for comparing the response of various security seals under different simulated modes of attack. The security seal to be evaluated shall first be classified into established groupings, and then tested in the manner designated as most suitable for that class of seal, in accordance with Classification F832.1.3 A mechanical security seal is a single use, passive device intended to detect tampering or entry into the sealed item. Removal of the security seal requires permanent and irreversible damage to the seal. The following procedures reflect the relative performance of security seals when subject to various destructive physical attacks. These tests simulate known and likely security seal implementation and attack methods.1.4 Security seals often contain unique identification markings for authentication purposes to discourage duplication and to prevent reapplication. This practice does not address unique identifiers or vulnerabilities of security seals.NOTE 1: See Guide F1158 for procedures on the inspection and evaluation of tampering of security seals. See also Guide F946.1.5 It is the responsibility of users of this practice to interpret their specific security needs concerning the application of seals, and to determine the grade of seal appropriate for their particular application. ASTM assumes no responsibility for losses occurring as a result of a defeated seal, whether the defeat is apparent, or the seal is not suited for its application.1.6 The values as stated in inch-pound units are to be regarded as the standard. The values in parentheses are given for information only.1.7 The following safety hazards caveat pertains only to the test procedures portion, Section 6, of this practice. 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 / 折扣价： 502 元 加购物车

This specification covers the material requirements for preformed polychloroprene elastomeric joint seals for concrete pavements. The seal consists of a multiple web design and is installed with a lubricant. The seal functions by compression of the seal between the faces of the joint with the seal folding inward at the top to facilitate compression. The seals shall be preformed, and the material shall be vulcanized elastomeric compound using polychloroprene as the only base polymer. The materials shall also comply with the physical properties prescribed herein such as tensile strength, elongation, hardness, oil swell, ozone resistance, low-temperature stiffening, low-temperature recovery, and compression deflection.1.1 This specification covers the material requirements for preformed polychloroprene elastomeric joint seals for concrete pavements. The seal consists of a multiple web design and functions only by compression of the seal between the faces of the joint with the seal folding inward at the top to facilitate compression. The seal is installed with a lubricant and is designed to seal the joint and reject incompressibles.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 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.NOTE 1: This specification is a manufacturing and purchasing specification only and does not include requirements or considerations for selection of size, or the installation of the joint seals. However, experience has shown that successful performance of this product depends upon the proper selection of size and cross-sectional design of the joint seal, joint size, and joint spacing for the ambient conditions the pavement will be exposed to, and care in the installation of the joint seals.

定价： 515元 / 折扣价： 438 元 加购物车

4.1 If a seal can be opened by any means and successfully reapplied without exhibiting signs indicative of prior attack, the integral quality of the seal is in serious question. This guide allows that any particular method of attempted defeat can be employed to defeat a seal, and concentrates not on the effectiveness of the seal to resist that attack, but rather on the nature of the individual seal to inhibit reapplication.4.2 This standard presents guidelines for inspection to assist in determining whether an attempt to defeat a security seal, and to possibly reapply the seal, has been made. In all cases, the guidelines are meant to focus attention on signs of attack and reapplication.1.1 This guide covers procedures for the inspection and evaluation of tampering of security seals.1.2 A security seal is a device intended to detect tampering or entry. Evaluate only single use locking devices under this guide. The following procedures shall serve as guidelines for detecting attempts at defeat and reapplication of a security seal.1.3 This guide is not intended to be fully comprehensive; certain types of security seals, such as labels, have not been addressed to date. Further, it is the responsibility of users of this guide to interpret their specific security needs concerning the use of seals, and to determine the grade of seal appropriate for their particular application. ASTM assumes no responsibility for losses occurring as a result of a defeated seal.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

5.1 This test provides a rapid means of evaluating tendencies for package seal failure when the package is exposed to a pressure differential. Pressure differentials may occur during such processes as sterilization and transportation. This test method provides an indicator of the burst strength of a package, where the burst will normally occur in one or more areas of the seal. An indicator of the minimum burst strength may be of importance to the package manufacturer and end user in ensuring adequate package integrity. This test method cannot provide a measure of package seal uniformity. This test method also cannot provide an evaluation of overall package integrity or the burst strength of areas of the package that contact the surface of the restraining plates used. This test method should be combined with other methods of evaluating overall package integrity, uniformity of the package seal, or opening functionality, if so required.5.2 This test frequently is used to quickly evaluate package seal strength during the manufacturing process and at various stages of the package's life cycle.5.3 If correlations between pieces of test equipment are to be made it is important that all parameters of the test be equivalent. Typical parameters can include, but are not limited to the package size, material, type and configuration of seal, rate of air flow into the package, pressure detection sensing mechanism and sensitivity (machine response to pressure drop), position of test article, rigidity of restraining plates, and distance between restraining plates. See Appendix X2 for further information.5.4 This test may not necessarily provide correlation with package seal strength as typically measured using Test Methods F1140 or F88 (or equivalents).1.1 This test method covers the procedure for determining the minimum burst strength of a seal placed around the perimeter of a flexible package as it is internally pressurized and enclosed within restraining plates.1.2 The test methods described herein are functionally similar to Test Methods F1140 with the exception of the use of restraining plates. Test Methods F1140 describes methods of burst testing that do not include the use of restraining plates and are suitable to determine a packages general ability to withstand pressurization stresses. Under Test Methods F1140 the stresses are not distributed uniformly to all areas of the package seal. Under unrestrained conditions the stress on the package is highest at the middle of the pouch where it inflates to the packages maximum diameter; therefore, Test Methods F1140 may not reliably detect the weakest area of the seal.1.3 The burst test internally and increasingly pressurizes a package until an area of the package seal around the perimeter “bursts” open in response to pressurization. By placing the package within restraining plates during pressurization, the dimensional stability of the package is maintained in a manner that results in stresses applied more uniformly along the perimeter of the package, where seals are normally placed. This allows the test to have a higher probability of detecting the weakest area of the seal and provide a measurement of the pressure required to “burst” open the package.1.4 This test only applies to flexible packages with seals placed around the perimeter of a flexible package (often referred to as a pouch). In particular it is intended as applicable to packages with seals that have a peelable seal feature (peeled open by end user to remove contents of package).1.4.1 Porous barrier materials' failure to reach adequate pressure to burst the package seals may be due to insufficient volume flow. See Appendix X4 for information.1.5 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.1.6 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. Particular caution is advised where users of this procedure may be required to design and fabricate restraining plate fixtures. Reference Appendix X3 for further information regarding calculation of stress factors and structural design considerations.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： 590元 / 折扣价： 502 元 加购物车

This specification covers flat steel strapping and seals intended for use in closing, reinforcing, bundling articles for shipment, unitizing, palletizing, and bracing for carloading, truckloading, lifting, and lashing. This specification does not include specialty-type strapping as developed for special applications or strapping produced from alloy metals. Strapping shall be of the following types: Type 1 and Type II; shall be of the following finish: Finish A, Finish B including Grade 1, Grade 2, and Grade 3, Finish C and Finish D; and shall have the prescribed widths and thicknesses in accordance with the specified sizes. Seals shall be of the following classes: Class R and Class H; finishes: Finish A, Finish B including Grade 1, Grade 2, and Grade 3, Finish C, and Finish D; and styles: Style I, Style II, Style III, Style IV, and Style V. Materials shall be cold-rolled carbon steel of the prescribed quality. Strapping and seal shall conform to the physical and mechanical property requirements prescribed for: (1) breaking strength, elongation and seal joint strength, (2) lubrication (by lubricity and edge tests), (3) weld efficiency, (4) seal width, (5) seal application, (6) notch, crimp, and sealless joints, (7) galvanized strapping (by weight loss test), (8) ductility of strapping coating, (9) base metal ductility (by bending test), and (10) straightness (camber, coil set, and spiral twist). The coil configuration are specified and illustrated. Sampling and packaging requirements such as wrapping and packing are also detailed.1.1 This specification covers flat steel strapping and seals intended for use in closing, reinforcing, bundling articles for shipment, unitizing, palletizing, and bracing for carloading, truckloading, lifting, and lashing.1.2 This specification includes strapping and seals made from carbon steel and applies only to the types and sizes as cataloged by strapping suppliers to be a standard, commercially available product. It does not include “specialty”-type strapping as developed for special applications or strapping produced from alloy metals.1.3 The values stated in inch-pound units are to be regarded as standard.1.4 Performance characteristics may be negatively affected by extremes of temperatures, such as occur during the annealing of steel.1.5 The following safety hazards caveat applies only to the test method portion, Sections 11, 12, and 13, 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： 646元 / 折扣价： 550 元 加购物车

1.1 This standard describes terms and definitions and descriptions of terms used in test methods, specifications, guides, and practices (related to building seals and sealants) consistent with the scope and areas of interest of ASTM Committee C24.1.2 Definitions and descriptions of terms are written to ensure that building seals and sealants standards are properly understood and interpreted.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： 646元 / 折扣价： 550 元 加购物车

This specification covers mechanical end-face seals for centrifugal and positive displacement pumps for shipboard use. Mechanical seals shall be classified by type, grade, and class. Types: type A - inside single mounted seals, type B - outside single mounted seals, type C - double seals, type D - tandem seals, type E - gas seal, and type F - special arrangement/applications vacuum or gas seal. Grades: grade 1 - basic end face seal, grade 2 - cartridge seal, and grade 3 - split seal. Classes: class 0 - nonsplit seal assembly, class 1 - partial split seal assembly, solid gland, class 2 - partial split seal assembly, split gland, class 3 - fully split seal assembly, solid gland, and class 4 - fully split seal assembly, split gland. Seal life shall be defined in terms of the time period in which the mechanical seal functions properly under its specified service.1.1 This specification covers mechanical end-face seals for centrifugal and positive displacement pumps for shipboard use.1.2 The following types of seals are not included in this specification: lip seals, oil seals, circumferential seals, or labyrinth seals.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. A companion hard metric standard is in the process of preparation.1.4 Special requirements for U.S. Navy Shipboard Pump Applications are included in Supplement S1.1.5 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： 843元 / 折扣价： 717 元 加购物车

This specification covers the material requirements for preformed thermoplastic vulcanizate (TPV) elastomeric joint seals for bridges. The seal consists of a multiple-web design composed of a TPV and functions only by compression of the seal between the faces of the joint with the seal folding inward at the top to facilitate compression. The seal is installed with a lubricant adhesive and is designed to seal the joint and reject incompressibles. The physical properties for which the seals shall be tested on and conform accordingly to are tensile strength, elongation at break, hardness, oven aging, ozone resistance, low- and high-temperature recovery, and compression-deflection properties.1.1 This specification covers the material requirements for preformed thermoplastic vulcanizate (TPV) elastomeric joint seals for bridges. The seal consists of a multiple-web design composed of a TPV and functions only by compression of the seal between the faces of the joint with the seal folding inward at the top to facilitate compression. The seal is installed with a lubricant adhesive and is designed to seal the joint and reject incompressibles.NOTE 1: This specification may not be applicable for seals whose height is less than 90 % of its nominal width.1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 515元 / 折扣价： 438 元 加购物车

8.1 Architectural compression seals included in this specification shall be those as follows:8.1.1 Without frames.8.1.2 Without flanges and nosing material(s).8.1.3 Used in interior or exterior applications.8.1.4 Used in any construction of the building.8.2 This specification will give users, producers, building officials, code authorities, and others a basis for verifying material and performance characteristics of representative specimens under common test conditions. This specification will produce data on the following:8.2.1 The physical properties of the fully cured elastomeric alloy.8.2.2 The movement capability in relation to the nominal joint width as defined under Test Method E1399/E1399M.8.3 This specification compares similar architectural compression seals but is not intended to reflect the system's application. “Similar” refers to the same type of architectural compression seal within the same subsection under 8.1.8.4 This specification does not provide information on the following:8.4.1 Durability of the architectural compression seal under actual service conditions, including the effects of cycled temperature on the compression seal.8.4.2 Loading capability of the system and the effects of a load on the functional parameters established by this specification.8.4.3 Shear and rotational movements of the specimen.8.4.4 Any other attributes of the specimen, such as fire resistance, wear resistance, chemical resistance, air infiltration, watertightness, and so forth.8.4.5 Testing or compatibility of substrates.8.4.6 Strip seals.8.4.7 Architectural compression seals used with frames.8.4.8 Architectural compression seals used with flanges and nosing material(s).8.5 This specification is intended to be used only as one element in the selection of an architectural compression seal for a particular application. It is not intended as an independent pass or fail acceptance procedure. Other standards shall be used in conjunction with this specification to evaluate the importance of other service conditions such as durability, structural loading, and compatibility.AbstractThis specification covers the physical requirements for the fully cured elastomeric alloy and the movement capabilities of preformed architectural compression seals used for sealing expansion joints in buildings and parking structures. The preformed architectural compression seal is a rectangular elastomeric extrusion, having an internal baffle system produced continuously and longitudinally throughout the material. The architectural compression seal functions under compression and is usually chemically bonded in place with an adhesive. The architectural compression seal shall be a preformed extrusion manufactured from a fully cured elastomeric alloy, which shall be classified either M2CE 706 A16B15C12C20F19Z1Z2, or M2CE 708 A16B15C12C20F19Z1Z2. Materials shall be tested and the individual grades shall conform to the specified values of tensile strength, elongation at break, hardness, specific gravity, modulus, weight gain, ozone resistance, compression set, heat aging, ultimate tensile strength and elongation, tear resistance, brittleness temperature, water absorption, and movement capabilities. Workmanship, color, and appearance are also detailed.1.1 This specification covers the physical requirements for the fully cured elastomeric alloy and the movement capabilities of preformed architectural compression seals used for sealing expansion joints in buildings and parking structures. The preformed architectural compression seal is a rectangular elastomeric extrusion, having an internal baffle system produced continuously and longitudinally throughout the material. The architectural compression seal functions under compression and is usually chemically bonded in place with an adhesive.NOTE 1: Movement capability is defined in Test Method E1399/E1399M.1.2 This specification covers all colors of architectural compression seals.1.3 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.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 / 折扣价： 502 元 加购物车

This specification covers the general requirements for heat-shrink cable entry seals. Cable entry seals are intended for making electrical cable penetrations into connection boxes, bulkheads, or other enclosures. Heat-shrink cable entry seals shall be of the following types: Type I (Types I-1, I-2, I-3, I-4, I-5, and I-6); Type II (Types II-1, II-2, II-3, and II-4); Type III; and Type IV. The rigid plastic parts shall be made from polyamide (nylon), or polyester material, or both. The following tests shall be performed: conformance testing; mechanical abuse test; and level of effectiveness.1.1 This specification covers the general requirements for heat-shrink cable entry seals. Cable entry seals are intended for making electrical cable penetrations into connection boxes, bulkheads, or other enclosures. These devices are suitable for both thin wall enclosures up to 5 mm (3/16 in.) thick and thick-wall enclosures of 5 mm to 19 mm (3/16 in. to 3/4 in.) thick.1.2 Cable entry seals shall have factory-applied adhesive that provides the seal to wire and cable jackets.1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound 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.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 / 折扣价： 502 元 加购物车