83.040.10 (Latex and raw rubber) 标准查询与下载



共找到 62 条与 相关的标准,共 5

1.1 These test methods cover test procedures for synthetic rubber latices ABR, BR, CR, IIR, IR, NBR, NCR, NIR, PBR, PSBR, SBR, SCR, SIR, synthetic rubber latices having substitute carboxylic acid (COOH) groups on the polymer chain (X), and synthetic rubber latices that are reinforced (Y). Exceptions to the above are noted in the individual test procedures. The test methods include procedures for sampling, and for determining total solids, volatile unsaturates (residual styrene), pH value, surface tension, viscosity, coagulum, bound styrene, Mooney viscosity, mechanical stability, polystyrene reinforcement in contained polymer, and residual acrylonitrile content. Note 1-The nomenclature used in these test methods is in accordance with Practice D1418. 1.2 The values stated in SI units are to be regarded as 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber Latices-Synthetic

ICS
83.040.10 (Latex and raw rubber)
CCS
G40
发布
1997
实施

The general end-use quality of manufactured rubber products depends on the physical and chemical properties of the rubber. 1.1 This specification covers minimum physical and chemical quality requirements or specifications for five grades of raw natural rubber.

Standard Specification for Natural Rubber (NR) Technical Grades

ICS
83.040.10 (Latex and raw rubber)
CCS
G34
发布
1996
实施

1.1 This specification covers minimum physical and chemical quality requirements or specifications for five grades of raw natural rubber.

Standard Specification for Natural Rubber (NR) Technical Grades

ICS
83.040.10 (Latex and raw rubber)
CCS
G34
发布
1996
实施

1.1 This practice covers several different techniques for determining the stress relaxation characteristics of rubber and rubberlike materials and for the possible interconversion of this stress relaxation information into dynamic mechanical properties. 1.2 The techniques are intended for materials having stress relaxation moduli in the range of 10(3) to 10(8) Pa (0.1 to 1.5 x 10(4) psi) and for test temperatures from 23 to 225 degrees C (73 to 437 degrees F). Not all measuring apparatus may be able to accommodate the entire ranges. These techniques are also intended for measurement of materials in their rubbery or molten states, or both. 1.3 Differences in results will be found among the techniques. Because of these differences, the test report needs to include the technique and the conditions of the test. This information will allow for resolving any issues pertaining to the test measurements. 1.4 The generalized descriptions of apparatus are based on the measurement of force as a function of time. Mathematical treatment of that relationship produces information that can be representative of material properties. Mathematical transformation of the force measurements will first yield stress relaxation moduli with subsequent transformation producing dynamic mechanical properties. 1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only. 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 Practice for Stress Relaxation Testing of Raw Rubber, Unvulcanized Rubber Compounds, and Thermoplastic Elastomers

ICS
83.040.10 (Latex and raw rubber)
CCS
G34
发布
1996
实施

1.1 This specification establishes minimum physical and chemical quality requirements or specifications for five grades of raw natural rubber.

Standard Specification for Natural Rubber (NR) Technical Grades

ICS
83.040.10 (Latex and raw rubber)
CCS
G34
发布
1996
实施

1.1 These infrared test methods cover the determination of the proportion of ethylene and propylene units in ethylene-propylene copolymers (EPM) and ethylene-propylenediene terpolymers (EPDM) over the range from 35 to 85 mass % ethylene. Four test methods are needed to encompass the variety of commercial polymers that contain additives or polymerized diene units that interfere with the various infrared peaks. Except when interferences are present, all four test methods should give similar results. The test methods appear in the following order:1.1.1 Pressed Film Test MethodsSectionsTest Method A-For EPM and EPDM between 35 and 65 mass % ethylene8-13Test Method B-For EPM and EPDM between 60 and 85 mass % ethylene, except for ethylene/propylene/1,4-hexadiene terpolymers14-18Test Method C-For all EPM and EPDM polymers between 35 and 85 mass % ethylene, using near infrared24-311.1.2 Cast Film Test Methods:Test Method D-For all EPM and EPDM polymers between 35 and 85 mass % ethylene, except for ethylene/propylene/1,4-hexadiene terpolymers24-311.2 These test methods are not applicable to oil-extended EPDM unless the oil is first removed in accordance with Test Method D.1.3 The values stated in SI units are to be regarded as the standard.1.4This 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 Raw-Determination of Ethylene Units in EPM (Ethylene-Propylene Copolymers) and EPDM (Ethylene-Propylene-Diene Terpolymers)

ICS
83.040.10 (Latex and raw rubber)
CCS
发布
1995
实施

1.1 This test method covers the determination of the dilute solution viscosity (DSV), the gel characteristics, and the swelling index of raw non-oil-extended and non-pigmented SBR and NBR. 1.2 This test method may be used to determine the dilute solution viscosity and gel characteristics of rubbers other than SBR and NBR, however, solvents other than 2-butanone and toluene may be required. 1.3 This test method is not intended for the measurement of micro-gel. 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, Raw-Determination of Gel, Swelling Index, and Dilute Solution Viscosity

ICS
83.040.10 (Latex and raw rubber)
CCS
发布
1995
实施

These tests are particularly useful for quality control in the production of synthetic rubbers. Percent gel is a measure of the amount of insoluble rubber present in the chosen solvent. Gel may be introduced intentionally in some rubbers. Variations from a normal level indicate changes in the polymerization system. Swelling index is a measure of the type of gel. Gel with a low-swelling index is referred to as “hard gel” and usually indicates the presence of material that does not break down readily by milling. A high-swelling index normally indicates the presence of a “loose gel” that may be broken down easily by milling. In low-gel or gel-free rubbers, the DSV correlates directly with the molecular weight. Since the viscosity is measured only on the soluble portion of the rubber, the use of DSV to predict molecular weight in rubbers having high gel values is meaningless.1.1 This test method covers the determination of the dilute solution viscosity (DSV), the gel characteristics, and the swelling index of raw non-oil-extended and non-pigmented SBR and NBR. 1.2 This test method may be used to determine the DSV and gel characteristics of rubbers other than SBR and NBR, however, solvents other than 2-butanone and toluene may be required. 1.3 This test method is not intended for the measurement of micro-gel. 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 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, Raw-Determination of Gel, Swelling Index, and Dilute Solution Viscosity

ICS
83.040.10 (Latex and raw rubber)
CCS
G34
发布
1995
实施

These tests are particularly useful for quality control in the production of synthetic rubbers. Percent gel is a measure of the amount of insoluble rubber present in the chosen solvent. Gel may be introduced intentionally in some rubbers. Variations from a normal level indicate changes in the polymerization system. Swelling index is a measure of the type of gel. Gel with a low-swelling index is referred to as “hard gel” and usually indicates the presence of material that does not break down readily by milling. A high-swelling index normally indicates the presence of a “loose gel” that may be broken down easily by milling. In low-gel or gel-free rubbers, the DSV correlates directly with the molecular weight. Since the viscosity is measured only on the soluble portion of the rubber, the use of DSV to predict molecular weight in rubbers having high gel values is meaningless.1.1 This test method covers the determination of the dilute solution viscosity (DSV), the gel characteristics, and the swelling index of raw non-oil-extended and non-pigmented SBR and NBR.1.2 This test method may be used to determine the DSV and gel characteristics of rubbers other than SBR and NBR, however, solvents other than 2-butanone and toluene may be required.1.3 This test method is not intended for the measurement of micro-gel.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, Raw-Determination of Gel, Swelling Index, and Dilute Solution Viscosity

ICS
83.040.10 (Latex and raw rubber)
CCS
G34
发布
1995
实施

1.1 This analytical technique provides a simple, rapid practice to prove the identity of a rubber chemical before incorporation into a rubber mix by comparison of its infrared absorption spectrum with that of a reference specimen. 1.2 This technique can also be used to detect gross contamination or large differences in rubber chemicals. Thus, it can provide a basis for producer-consumer agreement. 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 Practice for Rubber Chemicals-Determination of Infrared Absorption Characteristics

ICS
83.040.10 (Latex and raw rubber)
CCS
发布
1994
实施

1.1 This practice describes the characteristic mechanical behavior of rubbers at low temperatures, and outlines the conditioning procedure necessary for testing at these temperatures.1.2 One of the first stages in establishing a satisfactory technique for low temperature testing is the specification of the time and temperature of exposure of the test specimen. It has been demonstrated that any one or more of the following distinct changes, which are detailed in Table 1, may take place on lowering the test temperature:1.2.1 Simple temperature effects,1.2.2 Glass transitions, and1.2.3 First order transitions (crystallization), and solubility and other effects associated with plasticizers.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 Practice for Rubber Conditioning For Low-Temperature Testing

ICS
83.040.10 (Latex and raw rubber)
CCS
G31
发布
1992
实施

1.1 These test methods cover the sampling and chemical analysis of solid natural rubber in the forms supplied to the rubber industry.1.2 The analytical procedures appear in the following order: SectionsSampling 5Volatile Matter 6-8Dirt9-13Ash 14-17Copper (Referee Colorimetric Method) 18-22Copper (Alternative Colorimetric Method) 23-27Copper (Alternative Flame Atomic Absorption Method)28Manganese (Colorimetric Method)29-33Manganese (Alternative Flame Atomic Absorption Method) 34Iron (Colorimetric Method) 35-39Acetone Extract 40-41Rubber Hydrocarbon 42-43Nitrogen 44-451.3 The values stated in SI units are to be regarded as the standard. The values 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber from Natural Sources-Chemical Analysis

ICS
83.040.10 (Latex and raw rubber)
CCS
G40
发布
1991
实施

These test methods are intended for quality control acceptance of natural rubber and may be used for referee purposes.1.1 These test methods cover the sampling and chemical analysis of solid natural rubber in the forms supplied to the rubber industry. 1.2 The analytical procedures appear in the following order: Sections Sampling 5 Volatile Matter 6-8 Dirt 9-13 Ash 14-17 Copper (Referee Colorimetric Method) 18-22 Copper (Alternative Colorimetric Method) 23-27 Copper (Alternative Flame Atomic Absorption Method)28 Manganese (Colorimetric Method)29-33 Manganese (Alternative Flame Atomic Absorption Method) 34 Iron (Colorimetric Method) 35-39 Acetone Extract 40-41 Rubber Hydrocarbon 42-43 Nitrogen 44-45 1.3 The values stated in SI units are to be regarded as the standard. The values 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber from Natural Sourcesmdash;Chemical Analysis

ICS
83.040.10 (Latex and raw rubber)
CCS
G34
发布
1991
实施

1.1 These test methods cover the sampling and chemical analysis of solid natural rubber in the forms supplied to the rubber industry.1.2 The analytical procedures appear in the following order: SectionsSampling 5Volatile Matter 6-8Dirt9-13Ash 14-17Copper (Referee Colorimetric Method) 18-22Copper (Alternative Colorimetric Method) 23-27Copper (Alternative Flame Atomic Absorption Method)28Manganese (Colorimetric Method)29-33Manganese (Alternative Flame Atomic Absorption Method) 34Iron (Colorimetric Method) 35-39Acetone Extract 40-41Rubber Hydrocarbon 42-43Nitrogen 44-451.3 The values stated in SI units are to be regarded as the standard. The values 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber from Natural Sources-Chemical Analysis

ICS
83.040.10 (Latex and raw rubber)
CCS
G40
发布
1991
实施

These test methods are intended for quality control acceptance of natural rubber and may be used for referee purposes.1.1 These test methods cover the sampling and chemical analysis of solid natural rubber in the forms supplied to the rubber industry.1.2 The analytical procedures appear in the following order: SectionsSampling 5Volatile Matter 6-8Dirt9-13Ash 14-17Copper (Referee Colorimetric Method) 18-22Copper (Alternative Colorimetric Method) 23-27Copper (Alternative Flame Atomic Absorption Method)28Manganese (Colorimetric Method)29-33Manganese (Alternative Flame Atomic Absorption Method) 34Iron (Colorimetric Method) 35-39Acetone Extract 40-41Rubber Hydrocarbon 42-43Nitrogen 44-451.3 The values stated in SI units are to be regarded as the standard. The values 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Methods for Rubber from Natural Sources8212;Chemical Analysis

ICS
83.040.10 (Latex and raw rubber)
CCS
G34
发布
1991
实施

1.1 These test methods specify the standard materials, test formulas, mixing procedures, and test methods for the evaluation and production control of natural rubber (NR). 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 Methods for Rubber-Evaluation of NR (Natural Rubber)

ICS
83.040.10 (Latex and raw rubber)
CCS
发布
1989
实施

1.1 This specification covers bale coating on bales of natural rubber (that have rubber wrapper sheets on the bales) and includes test method description. It specifies the maximum permissible amount of such coating.1.2 This specification is not applicable to natural rubber that is packaged with plastic wrappers, as no bale coating is used.1.3 The following safety hazards caveat pertains only to the test method portion, Section 5, 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.

Standard Specification for Rubber Bales From Natural Sources8212;Limit on Coating

ICS
83.040.10 (Latex and raw rubber)
CCS
G40
发布
1988
实施

1.1 This specification covers bale coating on bales of natural rubber (that have rubber wrapper sheets on the bales) and includes test method description. It specifies the maximum permissible amount of such coating. 1.2 This specification is not applicable to natural rubber that is packaged with plastic wrappers, as no bale coating is used. 1.3 The following safety hazards caveat pertains only to the test method portion, Section 5, 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.

Standard Specification for Rubber Bales From Natural Sourcesmdash;Limit on Coating

ICS
83.040.10 (Latex and raw rubber)
CCS
G40
发布
1988
实施

1.1 This specification covers bale coating on bales of natural rubber (that have rubber wrapper sheets on the bales) and includes test method description. It specifies the maximum permissible amount of such coating.1.2 This specification is not applicable to natural rubber that is packaged with plastic wrappers, as no bale coating is used.1.3 The following safety hazards caveat pertains only to the test method portion, Section 5, 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.

Standard Specification for Rubber Bales From Natural Sources8212;Limit on Coating

ICS
83.040.10 (Latex and raw rubber)
CCS
G40
发布
1988
实施

1.1 This test method covers the determination of free monomer content of acrylic latexes. Monomers that have been successfully determined by this procedure include n-butyl methacrylate, n-butyl acrylate, styrene, and methyl methacrylate. The determination of other monomers has not been evaluated, but this test method is believed to be applicable. The established working range of this test method is from 100 to 1000 956;g/g, but there is no reason to believe it will not work outside of this range, provided that appropriate dilutions and adjustments in specimen size are made.1.2 The volatile composition of acrylic latexes is expected to change with time and environmental factors. This time dependence of the determination may be seen as an artificially large deviation of results, making the method mostly applicable for in-house quality control, where sampling and analysis conditions can be better controlled.1.3 The values stated in inch-pound units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use. See Section 7 for specific hazard statements.

Standard Test Method for Determining Unreacted Monomer Content of Latexes Using Gas-Liquid Chromatography

ICS
83.040.10 (Latex and raw rubber)
CCS
G40
发布
1987
实施



Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号