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This specification covers the chemical and physical quality specifications or requirements, or both, for Industry Reference Materials (IRMs) as cited in a certain practice and other standards. IRMs as evaluated and referenced in the said certain practice are vitally important to conduct product, specification and development testing in the rubber and carbon black industries. IRMs 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. Many ASTM rubber standards for the evaluation of natural or synthetic rubber require the use of specific IRMs in their test recipes for better laboratory repeatability and reproducibility. Some of the chemicals or materials specified include tetramethyl thiuram disulfide, benzothiazyl disulfide, N-tert-butyl-benzothiazole sulfenamide, stearic acid, sulfur, naphthenic process oil, zinc oxide, butyl rubber, petroleum oil, ammoniated latex antigenic protein, and rabbit anti AL antisera.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Significance and Use
3.1 IRMs 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. Many ASTM rubber standards for the evaluation of natural or synthetic rubber require the use of specific IRMs in their test recipes for better laboratory repeatability and reproducibility.
3.2 New material lots that have been selected as candidates for IRM approval shall conform to the appropriate specifications given in this standard and meet requirements given in Practice before the lots may be accepted as IRMs.
3.3 The chemical and physical IRM specifications shown will ensure some consistency in IRM properties from one lot to the next. However, the specifications cannot ensure exact inter-lot consistency.
1.1 This specification covers the chemical and physical quality specifications or requirements, or both, for Industry Reference Materials (IRMs) as cited in Practice and other standards.
1.2 IRMs, as evaluated and referenced in Practice , are vitally important to conduct product, specification, and development testing in the rubber and carbon black industries.
1.3 Before a new lot of material can be accepted as an IRM, it must comply with the specifications prescribed in this specification. However, these specifications are only part of the requirements. Other requirements as given in Practice shall be met before a candidate material can be formally accepted as an IRM.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D88 Test Method for Saybolt Viscosity
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D97 Test Method for Pour Point of Petroleum Products
D280 Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
D287 Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)
D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
D611 Test Methods for Aniline Point and Mixed Aniline Point of Petroleum Products and Hydrocarbon Solvents
D1278 Test Methods for Rubber from Natural Sources--Chemical Analysis
D1416 Test Methods for Rubber from Synthetic Sources--Chemical Analysis
D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)
D1519 Test Methods for Rubber Chemicals--Determination of Melting Range
D1646 Test Methods for Rubber--Viscosity, Stress Relaxation, and Pre-Vulcanization Characteristics (Mooney Viscometer)
D1747 Test Method for Refractive Index of Viscous Materials
D1951 Test Method for Ash in Drying Oils and Fatty Acids
D1959 Test Method for Iodine Value of Drying Oils and Fatty Acids
D1960 Test Method for Loss on Heating of Drying Oils
D1965 Test Method for Unsaponifiable Matter in Drying Oils, Fatty Acids, and Polymerized Fatty Acids
D1980 Test Method for Acid Value of Fatty Acids and Polymerized Fatty Acids
D1982 Test Method for Titer of Fatty Acids
D1993 Test Method for Precipitated Silica-Surface Area by Multipoint BET Nitrogen Adsorption
D2007 Test Method for Characteristic Groups in Rubber Extender and Processing Oils and Other Petroleum-Derived Oils by the Clay-Gel Absorption Chromatographic Method
D2140 Practice for Calculating Carbon-Type Composition of Insulating Oils of Petroleum Origin
D2161 Practice for Conversion of Kinematic Viscosity to Saybolt Universal Viscosity or to Saybolt Furol Viscosity
D2501 Test Method for Calculation of Viscosity-Gravity Constant (VGC) of Petroleum Oils
D3037 Test Method for Carbon Black--Surface Area by Nitrogen Adsorption
D3157 Test Method for Rubber from Natural Sources--Color
D3194 Test Method for Rubber From Natural Sources--Plasticity Retention Index (PRI)
D3280 Test Methods for Analysis of White Zinc Pigments
D4004 Test Methods for Rubber--Determination of Metal Content by Flame Atomic Absorption (AAS) Analysis
D4075 Test Methods for Rubber Compounding Materials--Flame Atomic Absorption Analysis--Determination of Metals
D4315 Test Methods for Rubber Compounding Material--Zinc Oxide
D4569 Test Method for Rubber Compounding Materials--Determination of Acidity in Sulfur
D4570 Test Method for Rubber Chemicals--Determination of Particle Size of Sulfur by Sieving (Dry)
D4571 Test Methods for Rubber Compounding Materials--Determination of Volatile Material
D4572 Test Method for Rubber Chemicals--Wet Sieve Analysis of Sulfur
D4574 Test Methods for Rubber Compounding Materials--Determination of Ash Content
D4578 Test Methods for Rubber Chemicals--Determination of Percent Sulfur by Extraction
D4678 Practice for Rubber--Preparation, Testing, Acceptance, Documentation, and Use of Reference Materials
D4934 Test Method for Rubber Compounding Materials: 2-Benzothiazyl Sulfenamide Accelerators--Insolubles
D4936 Test Method for Mercaptobenzothiazole Sulfenamide Assay by Reduction/Titration
D5289 Test Method for Rubber Property--Vulcanization Using Rotorless Cure Meters
ICS Number Code 19.020 (Test conditions and procedures in general); 83.020 (Manufacturing processes in the rubber and plastics industries)