{"id":299087,"date":"2024-10-19T20:23:33","date_gmt":"2024-10-19T20:23:33","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d4741-16\/"},"modified":"2024-10-25T17:49:01","modified_gmt":"2024-10-25T17:49:01","slug":"astm-d4741-16","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d4741-16\/","title":{"rendered":"ASTM-D4741"},"content":{"rendered":"

ASTM D4741-20a<\/h3>\n

Historical Standard: Standard Test Method for Measuring Viscosity at High Temperature and High Shear Rate by Tapered-Plug Viscometer<\/h4>\n
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ASTM D4741<\/h4>\n

Scope<\/strong><\/p>\n

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1.1<\/span> This test method2<\/span><\/span> covers the laboratory determination of the viscosity of oils at 150\u2009\u00b0C and 1 \u00d7 106<\/sup>\u2009s\u20131<\/sup> and at 100\u2009\u00b0C and 1 \u00d7 106<\/sup>\u2009s\u20131<\/sup>, using high shear rate tapered-plug viscometer models BE\/C or BS\/C.<\/p>\n<\/p><\/div>\n

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1.2<\/span> Newtonian calibration oils are used to adjust the working gap and for calibration of the apparatus. These calibration oils cover a range from approximately 1.4\u2009mPa\u00b7s to 5.9 mPa\u00b7s (cP) at 150\u2009\u00b0C and 4.2\u2009mPa\u00b7s to 18.9 mPa\u00b7s (cP) at 100\u2009\u00b0C. This test method should not be used for extrapolation to higher viscosities than those of the Newtonian calibration oils used for calibration of the apparatus. If it is so used, the precision statement will no longer apply. The precision has only been determined for the viscosity range 1.48\u2009mPa\u00b7s to 5.07 mPa\u00b7s at 150 \u00b0C and from 4.9\u2009mPa\u00b7s to 11.8 mPa\u00b7s at 100\u2009\u00b0C for the materials listed in the precision section.<\/p>\n<\/p><\/div>\n

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1.3<\/span> A non-Newtonian reference oil is used to check that the working conditions are correct. The exact viscosity appropriate to each batch of this oil is established by testing on a number of instruments in different laboratories. The agreed value for this reference oil may be obtained from the chairman of the Coordinating European Council (CEC) Surveillance Group for CEC L-36-90, or from the distributor.<\/p>\n<\/p><\/div>\n

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1.4<\/span> Applicability to products other than engine oils has not been determined in preparing this test method.<\/p>\n<\/p><\/div>\n

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1.5<\/span> The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard except those noted below.<\/p>\n

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1.5.1<\/span> Exception\u2014<\/span>This test method uses the SI unit millipascal-second (mPa\u00b7s) as the unit of viscosity. (1\u2009cP = 1 mPa\u00b7s.)<\/p>\n<\/p><\/div>\n<\/p><\/div>\n

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1.6<\/span> 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.<\/i><\/p>\n<\/p><\/div>\n

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1.7<\/span> 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.<\/i><\/p>\n<\/p><\/div>\n

Keywords<\/strong><\/p>\n

dynamic viscosity; high shear viscosity; high temperature; high temperature high shear (HTHS); rotational viscometer ;<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 75.100 (Lubricants, industrial oils and related products)<\/p>\n

DOI:<\/strong> 10.1520\/D4741-20A<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

D4741-20a Standard Test Method for Measuring Viscosity at High Temperature and High Shear Rate by Tapered-Plug Viscometer<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2020<\/td>\n6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":299090,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-299087","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-astm","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/299087","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/299090"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=299087"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=299087"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=299087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}