83.060 (Rubber) 标准查询与下载

ASTM D7050-04(2014) 天然橡胶以及基于预测加工性能的取样和分类包的标准实施规程

3.1 In accordance with Specification D2227, shipments of TSR10 and TSR20 must meet a minimum initial Wallace plasticity (Po) of 30 to be accepted. However, even with this minimum restriction, the uncured viscoelastic or “processability” properties are allowed to vary greatly. This variation in properties can significantly affect the quality and efficiency of a factory operation. 3.2 Bales of TSR10 or TSR20 which are lower in their uncured elastic quality (“soft” rubber) in some cases may impart better processing properties to tire innerliners, cushion gums, and sidewalls. “Soft” bales sometimes impart better building tack, better mold flow, and lower extrusion die swell with better dimensional stability. Also, these “soft” rubber bales may dissolve faster in solvents for adhesion dipping. 3.3 Bales of TSR10 or TSR20 that are higher in their uncured elastic quality (“hard” rubber) in some cases generate greater shearing during the initial stages of a factory mix, which result in a faster breakdown and a shorter mix cycle. 3.4 Therefore, in a factory operation, sometimes segregating TSR10 or TSR20 shipments into “soft” and “hard” categories can improve the efficiency and quality of a factory operation. 1.1 This practice covers the sorting of natural rubber bales of TSR10 or TSR20 in the factory according to their predicted processing performance based on differences in viscoelastic properties. 1.2 This practice determines which bales should be used in factory compounds which benefit from using “soft” natural rubber versus which work better with “hard” natural rubber.

Standard Practice for Rubber from Natural Sourcesmdash;Sampling and Sorting Bales Based on Predicted Processing Properties

ASTM C1518-04(2009) 预硫化弹性有机硅接缝密封剂的标准规范

1.1 Precured elastomeric silicone joint sealants, hereinafter referred to as seal, are manufactured in flat, cured, extruded shapes and are primarily used to span joint openings in construction. This specification describes the properties of applied, flat shaped precured elastomeric silicone joint sealants, hereinafter referred to as applied seal, that bridge joint openings and are adhered to joint substrates utilizing a liquid applied silicone adhesive sealant, specified by the manufacturer, hereinafter referred to as adhesive to construction substrates, to seal building openings such as panel joints, metal flashing joints, or other building openings in place of conventional liquid applied sealants. 1.2 Seals are applied in three different configurations: 1.2.1 As a bridge joint, the seal is applied flat on the surface to cover a joint opening. See Fig. 1. 1.2.2 As a beveled bridge joint, the seal is applied on the beveled edge of a substrate to bridge a joint opening. See Fig. 2. 1.2.3 As a U-joint, the seal is applied in a U-configuration within a joint. See Fig. 3. 1.3 This specification is for a flat extruded shape. A three-dimensional shape used at a joint cross section or termination is being considered for future inclusion in the specification. 1.4 An applied seal meeting the requirements of this specification shall be designated by the manufacturer as to movement class and tear class as described in Section 5. 1.5 The values stated in SI units are to be regarded as the standard. The values given in brackets are for information only. FIG. 1 Bridge Joint Configuration FIG. 2 Beveled Bridge Joint Configuration FIG. 3 U-Joint Configuration

Standard Specification for Precured Elastomeric Silicone Joint Sealants

ASTM D2228-04e1 橡胶特性的标准试验方法.相对抗磨性(皮考磨损机法)

This test method may be used to estimate the relative abrasion resistance of subject materials as described in 1.1. No correlation between this accelerated test and service performance is given or implied, due, in part, to the widely varying nature of service conditions. The formulas, for which the mixing and curing specifications are given in Annex A1, once prepared, are referred to as calibration compounds. These calibration compounds may be used to determine the performance status of the cutting knives as described in this test method. The performance of the cutting knives may also be determined by periodically determining their dimensions as described in 6.1.7. The calibration compounds are used as reference standards to which the abrasion resistance, determined by volume loss of a subject material, may be compared. Once the resistance to abrasion is established, using this methodology, for a specific material, the results achieved may be used as a basis for future comparative analysis of identical materials, either as agreed upon between laboratories, or between customer and supplier. FIG. 1 Typical Pico Tester FIG. 1Typical Pico Tester (continued)1.1 This test method covers the determination of the abrasion resistance of vulcanized (thermoset) rubbers, thermoplastic elastomers, and elastomeric and similar materials to a standardized reference system. A standardized set of reference compounds is used to calculate relative abrasion resistance. These reference compounds are also used to determine the relative performance, within a permissible range, of the cutting knives used in performing the test.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 All materials, instruments, or equipment used for the determination of mass, force, or dimension shall have traceability to the National Institute for Standards and Technology, or other internationally recognized organization parallel in nature.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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Rubber Property-Relative Abrasion Resistance by the Pico Abrader Method

ASTM D2228-04 橡胶特性的标准试验方法.相对抗磨性(皮考磨损机法)

1.1 This test method covers the determination of the abrasion resistance of vulcanized (thermoset) rubbers, thermoplastic elastomers, and elastomeric and similar materials to a standardized reference system. A standardized set of reference compounds is used to calculate relative abrasion resistance. These reference compounds are also used to determine the relative performance, within a permissible range, of the cutting knives used in performing the test.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 All materials, instruments, or equipment used for the determination of mass, force, or dimension shall have traceability to the National Institute for Standards and Technology, or other internationally recognized organization parallel in nature.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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Rubber Property-Relative Abrasion Resistance by the Pico Abrader Method

ASTM D926-04 橡胶特性的标准试验方法.塑性和回复性(平行板测量法)

The plasticity number and the recovery of the test specimen are related to the flow properties and the elastic properties, respectively, and may be useful in predicting processing characteristics, such as ease of forming and extrusion characteristics. 4.1.1 In this test method, plasticity is measured in an inverse manner, as noted by the final height of the specimen. Thus, high plasticity rubbers (high degree of flow during test) are indicated by a low plasticity number.1.1 This test method covers the determination of plasticity and recovery of unvulcanized rubber by means of the parallel plate plastometer. Uncompounded, compounded, and reclaim rubber may be tested.Note 18212;ISO 2007 and D 3194 use a principle similar to this test method although the apparatus, test conditions, and procedure are different.1.2 The values stated in SI units are to be regarded as the standard. The values 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Rubber Property8212;Plasticity and Recovery (Parallel Plate Method)

ASTM D4678-04(2009) 标准物质的制备、试验、验收、文献工作和使用

Reference materials are vitally important in product and specification testing, in research and development work, in technical service work, and in quality control operations in the rubber and carbon black industries. They are especially valuable for referee purposes. Categories, Classes, and Types of Reference Materials (RM): Reference materials are divided into two categories: Industry Reference Materials (IRM)8212;Materials that have been prepared according to a specified production process to generate a uniform lot; the parameters that define the quality of the lot are evaluated by a specified measurement program. Common-Source Reference Materials (CRM)8212;Materials that have been prepared to be as uniform as possible but do not have established property (parameter) values; the knowledge of a common or single source is sufficient for certain less critical applications. Industry reference materials (IRMs) are divided into additional classes and types according to the method of evaluating the lot parameters and according to the production process for generating the lot material. These are explained more fully (refer to Annex A3 and Annex A4 for more details on the discussion in Section 3). The following lot parameters are important for reference material use: Accepted Reference Value (AR Value)8212;An average IRM property or parameter value established by way of a specified test program. Test Lot Limits (TL Limits)8212;These are limits defined as ±3 times the standard deviation of individual IRM test results across the entire lot for the property or parameter(s) that defines lot quality; the measurements are conducted in the laboratory of the organization producing the IRM. Although the limits as defined in 3.2.3.2 are given in terms of ±3 times the standard deviation, the rejection of individual portions of the lot as being outlier or non-typical portions in assessing the homogeneity of the lot is done on the basis of ±2 times the appropriate standard deviation, that is, on the basis of a 95 % confidence interval. See Annex A3 and Annex A4 for more information and the evaluation procedures. All IRMs have an AR value and TL limits; however the AR value may be obtained in one of two ways to produce one of two classes of AR values: Global AR Value8212;This AR value is obtained from an interlaboratory test program where the word “global” indicates an average value across many laboratories. Local AR Value8212;This is an AR value obtained in one laboratory or at one location, usually the laboratory responsible for preparation of the homogeneous lot. An additional parameter is of importance for IRMs that have a global AR value: Between-Laboratory Limits (BL)8212;The group of laboratories that conduct interlaboratory testing to establish an AR-value are not equivalent to a system or population typical of industrial production operations that use the usual ±3 standard deviation limits. Such production operations are systems that have been purged of all assignable causes of variation and are in a state of ‘statistical control’

Standard Practice for Rubber-Preparation, Testing, Acceptance, Documentation, and Use of Reference Materials

ASTM C1518-04 预硫化的弹性硅密封剂标准规范

1.1 Precured elastomeric silicone joint sealants, hereinafter referred to as seal, are manufactured in flat, cured, extruded shapes and are primarily used to span joint openings in construction. This specification describes the properties of applied, flat shaped precured elastomeric silicone joint sealants, hereinafter referred to as applied seal, that bridge joint openings and are adhered to joint substrates utilizing a liquid applied silicone adhesive sealant, specified by the manufacturer, hereinafter referred to as adhesive to construction substrates, to seal building openings such as panel joints, metal flashing joints, or other building openings in place of conventional liquid applied sealants.1.2 Seals are applied in three different configurations:1.2.1 As a bridge joint, the seal is applied flat on the surface to cover a joint opening. See Fig. 1.1.2.2 As a beveled bridge joint, the seal is applied on the beveled edge of a substrate to bridge a joint opening. See Fig. 2.1.2.3 As a U-joint, the seal is applied in a U-configuration within a joint. See Fig. 3.1.3 This specification is for a flat extruded shape. A three-dimensional shape used at a joint cross section or termination is being considered for future inclusion in the specification.1.4 An applied seal meeting the requirements of this specification shall be designated by the manufacturer as to movement class and tear class as described in Section 5.1.5 The values stated in SI units are to be regarded as the standard. The values given in brackets are for information only.

Standard Specification for Precured Elastomeric Silicone Joint Sealants

ASTM D1646-04 橡胶的标准试验方法.粘度、应力松弛和预硫化特性(穆尼粘度计)

1.1 These test methods describe procedures for measuring a property called Mooney viscosity. Mooney viscosity is defined as the shearing torque resisting rotation of a cylindrical metal disk (or rotor) embedded in rubber within a cylindrical cavity. The dimensions of the shearing disk viscometer, test temperatures, and procedures for determining Mooney viscosity are defined in these test methods.1.2 When disk rotation is abruptly stopped, the torque or stress on the rotor decreases at some rate depending on the rubber being tested and the temperature of the test. This is called 'stress relaxation' and these test methods describe a test method for measuring this relaxation.Note 18212; Viscosity as used in these test methods is not a true viscosity and should be interpreted to mean Mooney viscosity, a measure of shearing torque averaged over a range of shearing rates. Stress relaxation is also a function of the test configuration and for these test methods the results are unique to the Mooney viscometer.1.3 When compounded rubber is placed in the Mooney viscometer at a temperature at which vulcanization may occur, the vulcanization reaction produces an increase in torque. These test methods include procedures for measuring the initial rate of rubber vulcanization.1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 ISO Standard 289 Parts 1 and 2 also describes the determination of Mooney viscosity and pre-vulcanization characteristics. In addition to a few insignificant differences there are major technical differences between ISO 289 and this test method in that ISO 289 does not provide for sample preparation on a mill, while this test method allows milling sample preparation in some cases prior to running a Mooney viscosity test. This can result in different viscosity values for some rubbers.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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber8212;Viscosity, Stress Relaxation, and Pre-Vulcanization Characteristics (Mooney Viscometer)

ASTM D4678-04 橡胶的标准规程.标准物质的制备、试验、验收、文献工作和使用

1.1 This practice covers materials used on an industry-wide basis as reference materials, which are vitally important to conduct product, specification, and development testing in the rubber and carbon black industry. This practice describes the steps necessary to ensure that any candidate material, that has a perceived need, can become a Reference Material. The practice sets forth the recommendations on the preparation steps for these materials, on the testing that shall be conducted to permit acceptance of any candidate material, and on how the documentation needed for the acceptance shall be recorded for future use and review.1.2 This practice shall be administered by ASTM Committee D11 in consultation on all matters with Committee D24.1.2.1 Important sections of this practice are as follows:SectionSignificance and UsePreparation of Industry Reference MaterialsOverview of Industry Reference Material TestingChemical and Physical Specifications for IRMReference Material DocumentationAssignment and Tabulation of Reference Material NumbersTypical Reference Material UseRecommended Package Size for IRMRecommended Sampling Plans for Homogeneity Testing of an IRMTest Plan and Analysis for Homogeneity of an IRMTest Plan and Analysis to Evaluate an Accepted Reference ValueStatistical Model(s) for IRM TestingExample of Annex Calculations for a Typical IRMTwo-Way Analysis of Variance for Calculating SrInventory of NIST Rubber Compounding SRMsThis 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.

Standard Practice for Rubber-Preparation, Testing, Acceptance, Documentation, and Use of Reference Materials

ASTM D2240-04 橡胶特性的标准试验方法.肖氏硬度

1.1 This test method describes twelve types of rubber hardness measurement devices known as durometers: Types A, B, C, D, DO, E, M, O, OO, OOO, OOO-S, and R. The procedure for determining indentation hardness of substances classified as thermoplastic elastomers, vulcanized (thermoset) rubber, elastomeric materials, cellular materials, gel-like materials and some plastics is also described.1.2 This test method is not equivalent to other indentation hardness methods and instrument types, specifically those described in Test Method D 1415.1.3 This test method is not applicable to the testing of coated fabrics.1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. Many of the stated dimensions in SI are direct conversions from the U. S. Customary System to accommodate the instrumentation, practices and procedures that existed prior to the Metric Conversion Act of 1975.1.5 All materials, instruments, or equipment used for the determination of mass, force or dimension shall have traceability to the National Institute for Standards and Technology, or other internationally recognized organization parallel in nature.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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Rubber Property8212;Durometer Hardness

ASTM D1871-04(2014) 轮胎钢丝和橡胶间粘结性的标准试验方法

5.1 To contribute to the mechanical properties required in a product, tire bead wire must have good adhesion to the rubber matrix. This allows the rubber to absorb part of the energy, distributing it uniformly between the reinforcing material and the rubber compound. This test method is considered satisfactory for acceptance testing of commercial shipments of wire since it has been used extensively in the trade for this purpose. This test method may be used for purchase specification requirements or manufacturing control of bead wire. 5.1.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, test samples should be used that are as homogeneous as possible, that are drawn from the material from which the disparate test results were obtained, and that are randomly assigned in equal numbers to each laboratory for testing. Other materials with established test values may be used for this purpose. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results for that material must be adjusted in consideration of the known bias. 5.2 The characteristics of single filament steel wires that affect the adhesion property are wire diameter, coating composition, and coating mass. The storage conditions, age, and vulcanization conditions of the rubber compound will affect the test results and must be specified by the supplier of the rubber compound. 1.1 This test method cover procedures for testing the strength of adhesion of single-filament wire to vulcanized rubber compounds. The method applies to, but is not limited to, wire made from brass, bronze, or zinc coated steel wire. The adhesion strength is expressed as the magnitude of the pull-out force for the single filament of wire. 1.2 This test method is applicable to single-filament wires used in reinforced rubber products as single filaments and is normally used to evaluate the adhesion of samples of wire to a standard rubber applied under specified conditions. It is primarily used to evaluate tire bead wire and may be applied, with modifications and by agreement between supplier and customer, to various wire types used in rubber product reinforcing. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4  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 and health practices and determine the applicability of regulatory limitations prior to use. See 6.5.1.

Standard Test Method for Adhesion Between Tire Bead Wire and Rubber

ASTM D1917-03(2007) 橡胶性能的标准试验方法.热聚合丁苯橡胶生胶和复合橡胶的收缩性

The shrinkage of SBR rubbers and their compounds after processing is of importance in many applications. This property can also be used for control, specifications, and fabrication purposes.1.1 These test methods cover the determination of mill shrinkage of hot-polymerized styrene-butadiene rubbers (SBR) and their compounds. 1.2 The values stated in SI units are to be regarded as the standard. The values 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber Propertyx2014;Shrinkage of Raw and Compounded Hot-Polymerized Styrene-Butadiene Rubber (SBR)

ASTM D2240-03 橡胶特性的标准试验方法.邵氏硬度

1.1 This test method describes twelve types of rubber hardness measurement devices known as durometers: Types A, B, C, D, DO, E, M, O, OO, OOO, OOO-S, and R. The procedure for determining indentation hardness of substances classified as thermoplastic elastomers, vulcanized (thermoset) rubber, elastomeric materials, cellular materials, gel-like materials and some plastics is also described.1.2 This test method is not equivalent to other indentation hardness methods and instrument types, specifically those described in Test Method D 1415.1.3 This test method is not applicable to the testing of coated fabrics.1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. Many of the stated dimensions in SI are direct conversions from the U. S. Customary System to accommodate the instrumentation, practices and procedures that existed prior to the Metric Conversion Act of 1975.1.5 All materials, instruments, or equipment used for the determination of mass, force or dimension shall have traceability to the National Institute for Standards and Technology, or other internationally recognized organization parallel in nature.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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Rubber Property8212;Durometer Hardness

ASTM D1229-03(2008) 橡胶特性.在低温时压缩率的标准试验方法

Rubber products, such as hydraulic seals on aircraft, submarine hatch gaskets, and hydraulic brake cups, may be exposed to varying temperature extremes. This test method provides a means of determining the extent to which recovery from compression at normal ambient temperatures is inhibited upon release of the compressive force during subsequent exposure at low temperatures.1.1 This test method covers evaluation of the ability of vulcanized rubbers that have been compressed at room temperature and then subjected to low temperature (air or carbon dioxide atmosphere), to recover from deformation when taken from the clamping device while still at the low temperature.1.2 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Rubber Property-Compression Set at Low Temperatures

ASTM D3767-03(2008) 橡胶尺寸的测量的标准实施规程

Dimensional measurements specified in this practice are made for one of the following purposes: (1) to determine conformance with specification requirements regarding geometrical properties of whole units, such as the size of rubber gloves, or the diameter and circumference of rubber hose, (2) to determine conformance with specification requirements regarding particular functional parts of units, such as the thickness of the soles of boots, or (3) to determine geometrical values that are necessary in the calculation of test results for physical properties for which requirements are specified, such as the thickness of a test specimen for tensile strength. The method to be used shall be as specified in the detail specification or appropriate test method. Pressure applied by measuring instruments has a significant effect on the observed thickness of soft flexible materials, and it is therefore necessary to specify the pressure imposed by the foot of the instrument on the test piece for accurate comparative measurements of such materials.1.1 This practice is intended for use in determining the geometrical dimensions of rubber products and specimens for physical tests. This practice describes procedures for determining length, width, thickness, diameter, and circumference. This practice does not cover sampling of materials or products, or locations where a sample is to be taken. 1.2 The values stated in either acceptable metric units or in other units shall be regarded separately as a standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any other way. 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 or regulatory limitations prior to use.

Standard Practice for Rubberx2014;Measurement of Dimensions

ASTM D3767-03 橡胶的标准规程.尺寸测量

Dimensional measurements specified in this practice are made for one of the following purposes: (1) to determine conformance with specification requirements regarding geometrical properties of whole units, such as the size of rubber gloves, or the diameter and circumference of rubber hose, (2) to determine conformance with specification requirements regarding particular functional parts of units, such as the thickness of the soles of boots, or ( 3) to determine geometrical values that are necessary in the calculation of test results for physical properties for which requirements are specified, such as the thickness of a test specimen for tensile strength. The method to be used shall be as specified in the detail specification or appropriate test method. Pressure applied by measuring instruments has a significant effect on the observed thickness of soft flexible materials, and it is therefore necessary to specify the pressure imposed by the foot of the instrument on the test piece for accurate comparative measurements of such materials.1.1 This practice is intended for use in determining the geometrical dimensions of rubber products and specimens for physical tests. This practice describes procedures for determining length, width, thickness, diameter, and circumference. This practice does not cover sampling of materials or products, or locations where a sample is to be taken. 1.2 The values stated in either acceptable metric units or in other units shall be regarded separately as a standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any other way. 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 or regulatory limitations prior to use.

Standard Practice for Rubber-Measurement of Dimensions

ASTM D1646-03a 橡胶的粘度、应力张弛和预硫化特性(穆尼粘度计)的标准试验方法

1.1 These test methods describe procedures for measuring a property called Mooney viscosity. Mooney viscosity is defined as the shearing torque resisting rotation of a cylindrical metal disk (or rotor) embedded in rubber within a cylindrical cavity. The dimensions of the shearing disk viscometer, test temperatures, and procedures for determining Mooney viscosity are defined in these test methods.1.2 When disk rotation is abruptly stopped, the torque or stress on the rotor decreases at some rate depending on the rubber being tested and the temperature of the test. This is called 'stress relaxation' and these test methods describe a test method for measuring this relaxation.Note 18212; Viscosity as used in these test methods is not a true viscosity and should be interpreted to mean Mooney viscosity, a measure of shearing torque averaged over a range of shearing rates. Stress relaxation is also a function of the test configuration and for these test methods the results are unique to the Mooney viscometer.1.3 When compounded rubber is placed in the Mooney viscometer at a temperature at which vulcanization may occur, the vulcanization reaction produces an increase in torque. These test methods include procedures for measuring the initial rate of rubber vulcanization.1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 ISO Standard 289 Parts 1 and 2 also describes the determination of Mooney viscosity and pre-vulcanization characteristics. In addition to a few insignificant differences there are major technical differences between ISO 289 and this test method in that ISO 289 does not provide for sample preparation on a mill, while this test method allows milling sample preparation in some cases prior to running a Mooney viscosity test. This can result in different viscosity values for some rubbers.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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber8212;Viscosity, Stress Relaxation, and Pre-Vulcanization Characteristics (Mooney Viscometer)

ASTM D1646-03 橡胶的粘度、应力张弛和预硫化特性(穆尼粘度计)的标准试验方法

1.1 These test methods describe procedures for measuring a property called Mooney viscosity. Mooney viscosity is defined as the shearing torque resisting rotation of a cylindrical metal disk (or rotor) embedded in rubber within a cylindrical cavity. The dimensions of the shearing disk viscometer, test temperatures, and procedures for determining Mooney viscosity are defined in these test methods.1.2 When disk rotation is abruptly stopped, the torque or stress on the rotor decreases at some rate depending on the rubber being tested and the temperature of the test. This is called 'stress relaxation' and these test methods describe a test method for measuring this relaxation. Viscosity as used in these test methods is not a true viscosity and should be interpreted to mean Mooney viscosity, a measure of shearing torque averaged over a range of shearing rates. Stress relaxation is also a function of the test configuration and for these test methods the results are unique to the Mooney viscometer.1.3 When compounded rubber is placed in the Mooney viscometer at a temperature at which vulcanization may occur, the vulcanization reaction produces an increase in torque. These test methods include procedures for measuring the initial rate of rubber vulcanization.1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 ISO Standard 289 Parts 1 and 2 also describes the determination of Mooney viscosity and pre-vulcanization characteristics. In addition to a few insignificant differences there are major technical differences between ISO 289 and this test method in that ISO 289 does not provide for sample preparation on a mill, while this test method allows milling sample preparation in some cases prior to running a Mooney viscosity test. This can result in different viscosity values for some rubbers.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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber8212;Viscosity, Stress Relaxation, and Pre-Vulcanization Characteristics (Mooney Viscometer)

ASTM D395-03(2008) 橡胶特性.压缩形变的标准试验方法

Compression set tests are intended to measure the ability of rubber compounds to retain elastic properties after prolonged action of compressive stresses. The actual stressing service may involve the maintenance of a definite deflection, the constant application of a known force, or the rapidly repeated deformation and recovery resulting from intermittent compressive forces. Though the latter dynamic stressing, like the others, produces compression set, its effects as a whole are simulated more closely by compression flexing or hysteresis tests. Therefore, compression set tests are considered to be mainly applicable to service conditions involving static stresses. Tests are frequently conducted at elevated temperatures.1.1 These test methods cover the testing of rubber intended for use in applications in which the rubber will be subjected to compressive stresses in air or liquid media. They are applicable particularly to the rubber used in machinery mountings, vibration dampers, and seals. Two test methods are covered as follows:Test MethodSectionA-Compression Set Under Constant Force in Air7-10B-Compression Set Under Constant Deflection in Air11-141.2 The choice of test method is optional, but consideration should be given to the nature of the service for which correlation of test results may be sought. Unless otherwise stated in a detailed specification, Test Method B shall be used.1.3 Test Method B is not suitable for vulcanizates harder than 90 IRHD.1.4 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber Property8212;Compression Set

ASTM D3568-03(2013) 橡胶的试验方法.EPDM(乙烯丙烯二烯三聚物)包括与油混合物的评价

3.1 These test methods are intended mainly for referee purposes but may be used for quality control of rubber production. They may also be used in research and development work and for comparison of different rubber samples in a standard formula. 3.2 These test methods may be used to obtain values for customer acceptance of rubber. 1.1 These test methods specify the standard materials, test formulas, mixing procedures, and test methods for the evaluation and production control of ethylene propylene diene rubbers (EPDM). 1.2 The values stated in SI units are to be regarded as the standard. The values 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubbermdash;Evaluation of EPDM 40;Ethylene Propylene Diene Terpolymers41; Including Mixtures With Oil