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ASTM D297-21

Standard Test Methods for Rubber Products—Chemical Analysis

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NORMA vydána dne 1.11.2021

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2 381.60 Kč

Informace o normě:

Označení normy: ASTM D297-21
Datum vydání normy: 1.11.2021
Kód zboží: NS-1046467
Počet stran: 37
Přibližná hmotnost: 111 g (0.24 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM D297-21 :

These test methods cover the qualitative and quantitative analyses of the composition of natural and synthetic crude rubbers. These methods are divided into general and specific test methods. General test methods shall be performed to determine the amount and type of some or all of the major constituents of a rubber product, and shall include determination of rubber polymer content by the indirect method, determination of density, and extract, sulfur, fillers, and ash analyses. Specific test methods, on the other hand, shall be performed to determine specific rubber polymers present in a rubber product such as crude, unvulcanized, reclaimed, and vulcanized rubbers.

Keywords:

ICS Number Code 83.060 (Rubber)

Doplňující informace

1. Scope

1.1?These test methods cover the qualitative and quantitative analysis of the composition of rubber products of the R family (see 3.1). Many of these test methods may be applied to the analysis of natural and synthetic crude rubbers.

1.1.1?Part A?consists of general test methods for use in the determination of some or all of the major constituents of a rubber product.

1.1.2?Part B?covers the determination of specific polymers present in a rubber product.

1.1.3?The test methods appear in the following order:

Part A. General Test Methods:

Sections

Rubber Polymer Content by the Indirect Method

11 13

Determinations and Report for the General Method

14 and 15

Density

Extract Analysis

17 26

Sulfur Analysis

27.1 33

Fillers Analysis

34 40

Ash Analysis

41 51

Part B. Determination of Rubber Polymers

52 58

1.2?The values stated in SI units are to be regarded as 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4?This 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.

2. Referenced Documents

D982-16(2022)	Standard Test Method for Organic Nitrogen in Paper and Paperboard
D1416-89	Test Methods for Rubber from Synthetic Sources--Chemical Analysis (Withdrawn 1996)
D1418-22	Standard Practice for Rubber and Rubber Latices—Nomenclature
E442-91	Test Method for Chlorine, Bromine, or Iodine in Organic Compounds by Oxygen Flask Combustion (Withdrawn 1997)
E443-91	Test Method for Sulphur in Organic Compounds by Oxygen Flask Combustion (Withdrawn 1997)
E11-22	Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
E131-10(2023)	Standard Terminology Relating to Molecular Spectroscopy
D1646-19a	Standard Test Methods for Rubber´Viscosity, Stress Relaxation, and Pre-Vulcanization Characteristics (Mooney Viscometer) (Includes all amendments and changes 11/26/2019).
D3040-81	Practice for Preparing Precision Statements for Standards Related to Rubber and Rubber Testing (Withdrawn 1987)
D3156-96(2021)	Standard Practice for Rubber—Chromatographic Analysis of Antidegradants (Antioxidants, Antiozonants and Stabilizers)
D3452-06(2021)	Standard Practice for Rubber—Identification by Pyrolysis-Gas Chromatography
D3677-10(2023)	Standard Test Methods for Rubber—Identification by Infrared Spectrophotometry
D4483-20	Standard Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
E200-23	Standard Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis

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