ASTM D5018-18

Standard Test Method for Shear Viscosity of Coal-Tar and Petroleum Pitches

WITHDRAWN

About this standard

Languages
English
Type
ASTM
Status
WITHDRAWN
Publication date
01 June 2018
Withdrawn Date

About this training

Summary

< div class=" SectionLevel2" > < p class=" subsec1 cdone2" > < span class=" Head3 cdone" > 1.1< / span> & #x00a0 This test method covers the determination of the apparent shear viscosity of coal-tar and petroleum-based pitches having a Mettler softening point (SP) range of approximately 95& #8201 & #x00b0 C to 120& #8201 & #x00b0 C (see Test Method < span class=" Body-link1 cdone" > D3104< / span> ).

< / div> < div class=" SectionLevel2" > < p class=" subsec1 cdone2" > < span class=" Head3 cdone" > 1.2< / span> & #x00a0 This test method is applicable only for rotational viscometers.

< / div> < div class=" SectionLevel2" > < p class=" subsec1 cdone2" > < span class=" Head3 cdone" > 1.3< / span> & #x00a0 Since this test method is based on theoretical grounds, strict adherence to details of the procedure is necessary to comply with the theoretical requirements.

< / div> < div class=" SectionLevel2" > < p class=" subsec1 cdone2" > < span class=" Head3 cdone" > 1.4< / span> & #x00a0 The values stated in SI units are to be regarded as standard.

< div class=" SectionLevel3" > < p class=" subsec2 cdone2" > < span class=" Head4 cdone" > 1.4.1< / span> & #x00a0 < span class=" Head4Title cdone" > Exception& #x2014 < / span> The values stated in conventional units (centipoise) are to be regarded as the standard for viscosity measurement only. The SI unit is the pascal second (Pa& #x00b7 s) and one millipascal second (mPa& #x00b7 s)& #8201 =& #8201 one centipoise (cP) centipoise is in cgs units.

< / div> < / div> < div class=" SectionLevel2" > < p class=" caveat cdone2" > < span class=" Head3 cdone" > 1.5< / span> & #x00a0 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. < span style=" font-style:normal font-weight:normal " class=" overriddenformat" > Specific hazard statements are given in Section < span class=" Body-link1 cdone" > 7< / span> . < / span>

< / div> < div class=" SectionLevel2" > < p class=" WTOcaveat cdone2" > < span class=" Head3 cdone" > 1.6< / span> & #x00a0 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.

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