1. Scope

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 1The nomenclature used in these test methods is in accordance with Practice D 1418.

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.

ASTM Standards

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

Keywords

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 Code

ICS Number Code 83.040.10 (Latex and raw rubber)

DOI: 10.1520/D1417-03A

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