Standard Practice for Rubber from Natural Sources—Sampling and Sample Preparation

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-06-2020

Publisher

American Society for Testing and Materials

1.1This practice, intended for referee purposes, covers a uniform procedure for sampling lots of solid natural rubber. Natural rubber generally is marketed in bales or packages of various sizes.

1.2A procedure for determining the acceptability of lots of natural rubber is given. This procedure is based on a variable sampling plan.

1.3The sample size is based on the assumption of a visually homogeneous material. If obvious heterogeneity exists, the number of samples shall be increased.

1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Committee	D 11
DocumentType	Standard Practice
Pages	3
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM D 1485 : 2007 : R2015

ASTM D 1646 : 2019 : REV A	Standard Test Methods for Rubber—Viscosity, Stress Relaxation, and Pre-Vulcanization Characteristics (Mooney Viscometer)
ASTM D 2449 : 1988 : R2015	Standard Specification for Rubber Bales From Natural Sources—Limit on Coating
ASTM D 3157 : 2005 : R2015	Standard Test Method for Rubber from Natural Sources—Color
ASTM D 5099 : 2008 : R2017	Standard Test Methods for Rubber—Measurement of Processing Properties Using Capillary Rheometry
ASTM D 7050 : 2004 : R2019	Standard Practice for Rubber from Natural Sources—Sampling and Sorting Bales Based on Predicted Processing Properties
ASTM D 6204 : 2019 : REV A	Standard Test Method for Rubber—Measurement of Unvulcanized Rheological Properties Using Rotorless Shear Rheometers
ASTM D 1278 : 1991 : REV A : R2020	Standard Test Methods for Rubber from Natural Sources—Chemical Analysis
ASTM D 3194 : 2017	Standard Test Method for Rubber From Natural Sources—Plasticity Retention Index (PRI)

ASTM D 3184 : 2011 : R2018	Standard Practice for Rubber—Evaluation of NR (Natural Rubber)
ASTM D 3184 : 2011 : R2022	Standard Practice for Rubber—Evaluation of NR (Natural Rubber)
ASTM D 3182 : 1989 : R2001	Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 3182 : 2021	Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 3182 : 2016	Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets
ASTM D 3182 : 2021 : REV A	Standard Practice for Rubber—Materials, Equipment, and Procedures for Mixing Standard Compounds and Preparing Standard Vulcanized Sheets