ASTM-D4575 2009(Redline)

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D4575-09 Standard Test Methods for Rubber Deterioration—Reference and Alternative Method(s) for Determining Ozone Level in Laboratory Test Chambers (Redline)

Published By	Publication Date	Number of Pages
ASTM	2009	12

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Description

Significance and Use

General purpose and many specialty rubbers will undergo ozone cracking when exposed to ozone containing atmospheres, when the test specimens or actual use products are under a certain degree of tensile strain. Certain additives such as antiozonants and waxes inhibit or prevent this cracking. Various rubbers and rubber formulations containing such additives are customarily evaluated under static or dynamic tensile strain in laboratory ozone chambers. This standard provides for an accurate assessment of the ozone content of such chambers used in Test Methods D 518, D 1149, D 1171, D 3395 and ISO Standard 1431 I/II/III. For additional information on ozone analysis, refer to Code of Federal Regulations; Title 40 Parts 1 to 51.

1. Scope

1.1 These test methods cover the following three types of methods for the determination of ozone content in laboratory test chambers. Method A (UV absorption) is specified for reference or referee purposes and as a means of calibration for the alternative methods; Method B, instrumental device (electrochemical or chemiluminescence); and Method C, wet chemical techniques (see Appendix X1). These methods are primarily intended for use with tests for determining rubber ozone cracking resistance and thus are applicable over the ozone level range from 25 to 200 mPa.

Note 1—Prior to 1978, ozone concentrations were expressed in ASTM D11 Standards in parts per hundred million (pphm) of air by volume. See Appendix X2 for an explanation of the change to partial pressure in millipascals (mPa).

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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. For a specific hazard statement, see Note 2 and 5.1.

Note 2— Warning — Ozone is a hazardous chemical.

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

D518 Test Method for Rubber Deterioration–Surface Cracking D1149 Test Methods for Rubber Deterioration–Cracking in an Ozone Controlled Environment D1171 Test Method for Rubber Deterioration–Surface Ozone Cracking Outdoors or Chamber (Triangular Specimens) D3395 Test Methods for Rubber Deterioration–Dynamic Ozone Cracking in a Chamber

ISO Standard

ISO-1431/I,IIandIII Rubber Ozone Testing; Static, Dynamic and Analysis Methods (respectively)

Federal Standard

CodeofFederalRegulat Parts 1 to 51, July 1, 1984, Appendix D (Ozone in Atmosphere) pp. 550-562

Keywords

chemical; deterioration; ozone measurement; rubber test; ultraviolet; Absorption methods; Calibration–rubber analysis instrumentation; Chemiluminescence detection; Deterioration–rubber; Electrochemical measurements/testing; Modified spray-jet device; Ozone (O3) cracking; Reference testing methods; Rotameter applications/analysis; Rubber (ozone cracking); Single column absorption; Spray-jet device; Ultraviolet (UV) analysis–rubber; Wet chemical analysis;

ICS Code

ICS Number Code 83.060 (Rubber)

DOI: 10.1520/D4575-09 ASTM International is a member of CrossRef.

ASTM D4575 (Rubber Standards)

Citing ASTM Standards

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Additional information

Standard Title	D4575-09 Standard Test Methods for Rubber Deterioration—Reference and Alternative Method(s) for Determining Ozone Level in Laboratory Test Chambers (Redline)
Published Code	ASTM
Publication Date	2009
Pages Count	12

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ASTM-D4575 2009(Redline)

ASTM D4575 (Rubber Standards)

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