定价： 0元 / 折扣价： 0 元

定价： 1177元 / 折扣价： 1001 元

1.1 This classification system covers segmented block copolyester elastomers suitable for molding and extrusion.1.2 This classification system allows for the use of segmented block copolyesther elastomers that are recycled provided that the requirements as stated in this classification system are met. The proportions of recycled material used, as well as the nature and amount of any contaminant, however, cannot be covered practically in this specification.1.3 The properties included in this classification system are those required to identify the compositions covered. It is possible that there are other requirements necessary to identify particular characteristics important to specialized applications. One way of specifying them is by using the suffixes as given in Section 5.1.4 This classification system and subsequent line callout (specification) are intended to provide a means of calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection is best made by those having expertise in the plastic field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this classification system.1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.6 The following precautionary caveat pertains only to the test methods portion, Section 11, of this classification system. 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.NOTE 1: This standard, ISO 14910-1, and ISO 14910-2 address the same subject matter, but differ in technical content.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

4.1 When more than one elastomer seal material is tested, the test methods yield comparative data on which to base judgements as to expected service quality. Suggested in-service property change limits are provided. Property changes beyond these limits will indicate limited service life of the elastomer seal.4.2 These test methods attempt to simulate service conditions through controlled aging and evaluation of property changes but may not give any direct correlations with actual part performance since actual service conditions vary widely. These test methods yield comparative data and indications of property changes of the elastomeric seal material under ideal service conditions. These test methods can be used for quality control purposes, for engineering assessments, for service evaluation, and for manufacturing control. The information from these test methods can be used to anticipate expected service quality.1.1 These test methods cover the procedure for measuring physical properties of elastomer seals in the form of O-rings after exposure to industrial hydraulic fluids and thermal aging. The measured properties are then compared to the physical properties of elastomer seals that have not been exposed to the industrial hydraulic fluids and thermal aging. The changes in these properties form a basis for assessing compatibility when these changes are compared against the suggested limits in Table 1.1.2 While these test methods involve the use of O-rings, they can also be used to evaluate the compatibility of the elastomeric compounds of specialty seals with industrial hydraulic fluids and their resistance to thermal aging. The compounds can be molded into O-rings for evaluation purposes.1.3 These test methods provide procedures for exposing O-ring test specimens to industrial hydraulic fluids under definite conditions of temperature and time. The resulting deterioration of the O-ring material is determined by comparing the changes in work function, hardness, physical properties, compression set, and seal volume after immersion in the test fluid to the pre-immersion values.1.4 The values stated in SI units are to be regarded as the standard.1.4.1 Exception—The values given in parentheses are for information only.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： 590元 / 折扣价： 502 元 加购物车

1.1 This classification and subsequent line callout (specification) cover styrenic block copolymer thermoplastic elastomer materials for injection molding and extrusion. Copolymers consist of polystyrene segments bound to rubbery segments. The rubbery segments may be saturated or unsaturated. Compounding ingredients may be present as necessary for the application. The compounding ingredients may consist of reinforcements, resins, plasticizers, fillers, stabilizers, and colorants. Recycled styrenic thermoplastic elastomers are not covered in this classification.1.2 The properties included in this classification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics that are important to specialized applications. These may be described by using the suffixes specified in Section 5.1.3 The values stated in SI units, as detailed in IEEE/ASTM SI 10, are to be regarded as the standard.Note 1--There is no equivalent ISO standard.

定价： 0元 / 折扣价： 0 元

1.1 This classification system covers segmented block copolyether-ester elastomers suitable for molding and extrusion.1.2 This classification system allows for the use of segmented block copolyether-ester elastomers that are recycled provided that the requirements as stated in this classification system are met. The proportions of recycled material used, as well as the nature and amount of any contaminant, however, cannot be covered practically in this specification.1.3 The properties included in this classification system are those required to identify the compositions covered. It is possible that there are other requirements necessary to identify particular characteristics important to specialized applications. One way of specifying them is by using the suffixes as given in Section 5.1.4 This classification system and subsequent line callout (specification) are intended to provide a means of calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection is best made by those having expertise in the plastic field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered by this classification system.1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.6 The following precautionary caveat pertains only to the test methods portion, Section 11, of this classification system. 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.NOTE 1: This standard, ISO 20029-1, and ISO 20029-2 address the same subject matter, but differ in technical content.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

1.1 This specification covers alloys of chlorinated ethylene elastomers suitable for injection molding, extrusion, blow molding, thermoforming, and other plastics processing methods.1.2 This specification allows for the use of those TECEA materials that can be recycled, regrounded, and reprocessed, provided that the requirements as stated in this specification are met. The proportions of recycled material used, as well as the nature and amount of any contaminant, however, cannot be covered practically in this specification.1.3 The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specialized application. These shall be agreed upon between the user and the supplier, by using the suffixes given in Section 5.1.4 The values stated in SI units are to be regarded as the standard. The practices, as detailed in Practice IEEE/ASTM SI 10, are incorporated herein.1.5 The following precautionary caveat pertains only to the test methods portion, Section 10, 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 and health practices and determine the applicability of regulatory limitations prior to use.Note 1--There is no similar or equivalent ISO standard.

定价： 0元 / 折扣价： 0 元

This specification covers ozone-resistant thermoplastic elastomer insulation for electrical wires and cables operating continuously at specified conductor temperatures, within the specified voltage range, and under wet or dry conditions. The prescribed tests cannot be performed unless the insulation is formed around a conductor, but these are done solely to determine the insulation properties and not to test the conductor or completed cable. Each test sample should be subjected to ac and dc voltage withstand tests as well as insulation resistance tests and should comply with the required values for aging, heat distortion, electrical permittivity, increase in capacitance, stability factor, and accelerated water absorption.1.1 This specification covers an ozone-resistant insulating compound for electrical wire and cables 14 AWG and larger. This compound consists substantially of a thermoplastic elastomer.1.2 This type of insulation is suitable for continuous operation at conductor temperatures not exceeding 90 °C in dry locations and 75 °C in wet locations. Operating voltages are not to exceed 2000 V. The minimum installation temperature is −40 °C.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 In many instances the insulation material cannot be tested unless it has been formed around a conductor or cable. Therefore, tests are done on insulated wire or cable in this document solely to determine the relevant property of the insulation material and not to test the conductor or completed cable.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 / 折扣价： 438 元 加购物车

This specification covers an ozone-resistant thermoplastic elastomer insulation for electrical wire and cables. This type of insulation is considered to be suitable for continuous operation at the specified conductor temperatures and operating voltages in dry locations. The minimum installation temperature is specified. Tests shall be done on insulated wire or cable solely to determine the relevant property of the insulation material and not to test the conductor or completed cable. The insulation shall conform to the prescribed physical property requirements such as (1) tensile strength and elongation at rupture before and after air oven aging test, (2) heat distortion, and (3) thickness. AC voltage, insulation resistance, and DC voltage tests shall be performed in that order when any of these tests are specified for electrical requirements. The insulation shall not show any cracks when tested by cold bend test and shall show no cracking or surface checking after exposure to the prescribed ozone concentration.1.1 This specification covers an ozone-resistant insulating compound for electrical wire and cables 14 AWG and larger. This compound consists substantially of a thermoplastic elastomer.1.2 This type of insulation is considered suitable for continuous operation at conductor temperatures not exceeding 90 °C in dry locations. Operating voltages are not to exceed 2000 V. The minimum installation temperature is –40 °C.1.3 In many instances the insulation material cannot be tested unless it has been formed around a conductor or cable. Therefore, tests are done on insulated wire or cable in this specification solely to determine the relevant property of the insulation material and not to test the conductor or completed cable.1.4 Whenever two sets of values are presented, in different units, the values in the first set are to be regarded as standard. The values given in parentheses are mathematical conversions that are provided for information only and are not considered standard.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 / 折扣价： 438 元 加购物车

1.1 This specification covers segmented block copolyether-ester elastomers suitable for molding and extrusion. 1.2 The properties included in this specification are those required to identify the compositions covered. There may be other requirements necessary to identify particular characteristics important to specialized applications. These shall be agreed upon between the user and the supplier, by using the suffixes given in Section 5. 1.3 The values stated in SI units are to be regarded as the standard. 1.4 The following precautionary caveat pertains only to the test methods portion, Section 12 of this specification: 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.

定价： 0元 / 折扣价： 0 元

5.1 The information provided by this test method is useful for manufacturing quality control, technical service, and research purposes; and is required by various material specifications.5.2 This method is suitable for all elastomer or rubber materials.1.1 This standard gives the testing procedure to determine the change in dimensions of specimens of rubber or elastomeric materials, or both, resulting from exposure to gaseous hydrocarbon environments. The size of the specimens is such to facilitate preparation from as molded component configurations such as gaskets and seals. Where agreed to by both parties molded specimens may be used. Dimensional measurements are made prior to and after conditioning in a formulated test gas.1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are 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, 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

This specification covers high-temperature and acid-resistant fluorocarbon terpolymer elastomers used in the manufacture of expansion joints for coal-fired utilities and other high-temperature industrial applications in which corrosive flue gases are present. The materials should be black and based on virgin fluoroelastomer terpolymers with chemical compositions that meet the requirements. Samples should also satisfy the required values of hardness, tensile strength, elongation, weight, and specific gravity.1.1 This specification covers requirements for the fluorocarbon terpolymer elastomer used in the manufacture of expansion joints for use in coal-fired utilities and other high temperature industrial applications in which corrosive flue gases are present.1.2 This specification is intended as a reference procedure for evaluating the performance of these vulcanizates and can also be used for quality assurance testing before release of a lot based on agreement between supplier and purchaser.1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.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 requirements 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： 515元 / 折扣价： 438 元 加购物车

5.1 Measurement of the changes in the volume and hardness of an elastomer that occur from immersion in a lubricating grease or fluid provides a means for evaluating relative compatibility. Much of this test method was derived from procedures described in Test Method D471 and Federal Test Method 791C/3603.5. In contrast to these two test methods, which emphasize the evaluation of rubber and rubber-like compounds, Test Method D4289 was developed specifically to evaluate lubricating greases and fluids, especially those used in automotive applications, although the test method can be applied to lubricants used in industrial applications as well. Excepting the Shore Durometer A, this test method requires no specialized, rubber-testing equipment. Virtually all other equipment and supplies specified in the procedure are stock items in lubricants laboratories.5.2 The volume and hardness-change values determined by this test method do not duplicate similar changes that occur in elastomeric seals under actual service conditions. However, they can be correlated in many instances. In one such instance, the volume-change values determined by the antecedent of this test method correlated (r2 = 0.99) with those that occurred during a vehicle test.6 Because of wide variations in service conditions and differences in grease and elastomer formulations, correlations between the results obtained with this test method and particular applications should be determined on an individual basis.5.3 With specifications requiring elastomers other than Reference Elastomers AMS 3217/2C or AMS 3217/3B, coupons cut from standard sheets (Practice D3182) should be used. When the preparation of such coupons is not feasible, or the lubricant specification requires the use of rubber products that do not have a suitable size or configuration for use in preparing coupons for testing (Practice D3183), this test method can be used as a guide for evaluating compatibility.NOTE 5: Inasmuch as the precision values apply only to the elastomers specified in Annex A1 of Test Method D4289, when a lubricant specification requires some other elastomer, the user and supplier of the lubricant should agree to the values of acceptable precision. Such values may or may not be the same as those of Test Method D4289. It is recommended that the agreed upon precision values be stated in the user's lubricant specification.5.4 The results of this test method are most applicable to the use of lubricating greases and fluids in contact with elastomeric seals, boots, O-rings, and similar products, where the physical demands on the elastomer are not extreme. In critical applications where the lubricant will be in contact with rubber parts subject to severe flexing, extreme temperatures, or similar stresses, other rubber properties, such as tensile strength and elongation, should also be evaluated as they may be more indicative of the true compatibility characteristics.1.1 This test method evaluates the compatibility of lubricating greases and fluids with coupons cut from standard elastomer sheets (Practice D3182). Compatibility is evaluated by determining the changes in volume and Durometer A hardness that occur when elastomer coupons are totally immersed in a lubricant sample for 70 h or for a duration as required by the lubricant specification at either 100 °C or 150 °C or at a test temperature as required by the lubricant specification.1.1.1 Some lubricant specifications may require different elastomers or test conditions, such as longer durations or lower or higher temperatures. In such instances, the repeatability and reproducibility values stated in Section 12 do not apply, and the user and supplier should agree on acceptable limits of precision.NOTE 1: The scope of this test method now includes the evaluation of the elastomer compatibility of both lubricating fluids and greases. Testing of fluids was not included in Test Method D4289–95 and earlier versions.1.2 This test method can also be used as a guide to evaluate the compatibility of greases with rubber products not in standard sheet form (Practice D3183).1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.3.1 Exception—When listed, Durometer A units shall be regarded as the 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 warning statements, see 8.4 – 8.6.1.5 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

5.1 When a constant strain is imposed on rubber, the force necessary to maintain that strain is not constant but decreases with time; this phenomenon is called force decay (stress relaxation). Conversely, when rubber is subjected to a constant stress, an increase in the deformation takes place in time; this behavior is called creep. These phenomena are of practical significance in rubber articles, such as seals and gaskets.5.2 The processes responsible for force decay may be either physical or chemical in nature, and under all normal conditions both processes will occur simultaneously. However, at ambient or low temperatures and/or short times, force decay is dominated by physical processes, while at elevated temperatures and/or long times, chemical processes are dominant. Hence, it is neither safe to extrapolate time/force decay curves in order to predict force decay after periods considerably longer than those covered by the test, nor to use tests at higher temperatures as accelerated tests to give information on force decay at lower temperatures.5.3 In addition to the need to specify the temperature and time-intervals in a force decay test, it is also necessary to specify the initial stress and the previous mechanical history of the test specimen, since these may also influence the measured force decay, particularly in rubbers containing fillers.1.1 This standard specifies two methods for determining the decrease in counterforce exerted by a test specimen of vulcanized rubber or thermoplastic elastomer which has been compressed at a constant deformation under specified conditions of time and temperature.1.2 This document was developed based on testing in air and liquids.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： 590元 / 折扣价： 502 元 加购物车

This specification covers the requirements for silicone elastomer implants used in facial surgery, that is, chin, nasal, malar, and ear implants. The primary material of construction shall be fully vulcanized silicone elastomer. Implants may have orientation means or sites of attached fixation materials, or both. Different tests shall be conducted in order to determine the following properties of elastomers: elongation at failure, tensile strength, modulus, and tear.1.1 This specification covers the requirements for silicone elastomer implants used in facial surgery (that is, chin, nasal, malar, and ear implants).1.2 Limitations—This specification does not cover implants containing silicone gels or other gels or liquids. It does not necessarily cover any custom fabricated prosthesis manufactured to any other specification.1.3 The following safety hazards caveat pertains only to the mechanical testing and test methods portion, Section 7, 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.

定价： 515元 / 折扣价： 438 元 加购物车