These test methods cover the synthetic rubber lattices ABR, BR, CR, IIR, NBR, NCR, NIR, PBR, PSBR, SBR, SCR, SIR, synthetic rubber lattices with substituted carboxylic acid groups on the polymer chain, and reinforced synthetic rubber lattices. Covered tests include the procedure for collecting samples and determining total solid content, volatile unsaturates content, pH, surface tension, viscosity, coagulum, bound styrene, Mooney viscosity, mechanical stability, polystyrene reinforcement in contained polymer, and residual acrylonitrile content. Each test method contains information on material exceptions, apparatus, and test procedures.
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.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1076 Specification for Rubber--Concentrated, Ammonia Preserved, Creamed, and Centrifuged Natural Latex
D1331 Test Methods for Surface and Interfacial Tension of Solutions of Surface-Active Agents
D1416 Test Methods for Rubber from Synthetic Sources--Chemical Analysis
D1418 Practice for Rubber and Rubber Latices--Nomenclature
D1646 Test Methods for Rubber--Viscosity, Stress Relaxation, and Pre-Vulcanization Characteristics (Mooney Viscometer)
D3182 Practice for Rubber--Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
D3314 Test Method for Rubber--Chemical Analysis for Polystyrene Blocks In SBR (Styrene-Butadiene Rubber) and Styrene-Reinforced Latices
D4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
D6204 Test Method for Rubber--Measurement of Unvulcanized Rheological Properties Using Rotorless Shear Rheometers
E70 Test Method for pH of Aqueous Solutions With the Glass Electrode
E200 Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis
latex; rubber latices; synthetic; Acidity, alkalinity, pH--rubber materials/applications; Chemical analysis--rubber chemicals/materials; Coagulum content; Mechanical stability; Mooney viscosity testing; Natural rubber (NR) latex; Solids content; Styrene content; Surface analysis--rubber chemicals/materials; Synthetic rubber; Tensile properties/testing--rubber/related materials; Viscometers--Mooney; Viscosity--rubber ;
ICS Number Code 83.040.10 (Latex and raw rubber)
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