{"id":65541,"date":"2024-10-17T12:48:03","date_gmt":"2024-10-17T12:48:03","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-d5481-2\/"},"modified":"2024-10-24T18:23:09","modified_gmt":"2024-10-24T18:23:09","slug":"astm-d5481-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-d5481-2\/","title":{"rendered":"ASTM-D5481"},"content":{"rendered":"

ASTM D5481-10<\/h3>\n

Historical Standard: Standard Test Method for Measuring Apparent Viscosity at High-Temperature and High-Shear Rate by Multicell Capillary Viscometer<\/h4>\n
\n

ASTM D5481<\/h4>\n

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

1.1 This test method covers the laboratory determination of high-temperature high-shear (HTHS) viscosity of engine oils at a temperature of 150\u00b0<\/span>C using a multicell capillary viscometer containing pressure, temperature, and timing instrumentation. The shear rate for this test method corresponds to an apparent shear rate at the wall of 1.4 million reciprocal seconds (1.4 \u00d7<\/span> 106<\/sup> s\u2212<\/span>1<\/sup>). This shear rate has been found to decrease the discrepancy between this test method and other high-temperature high-shear test methods3<\/sup> used for engine oil specifications. Viscosities are determined directly from calibrations that have been established with Newtonian oils with viscosities from 2 to 5 mPa-s at 150\u00b0<\/span>C.<\/p>\n

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.<\/p>\n

1.2.1 The centiPoise (cP) is a non-SI metric unit of viscosity that is numerically equal to the milliPascal-second (mPa-s).<\/p>\n

1.2.2 Pounds per square inch (psi) is a non-SI unit of pressure that is approximately equal to 6.895 kPa. These units are provided for information only in 6.1.1, 7.3, 9.1.2.1, and the tables.<\/p>\n

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.<\/span><\/p>\n

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

capillary method; shear testingpetroleum products; viscosity; viscosityapparent; Capillary method; Multicell capillary viscometer; Shear testing–petroleum products; Viscosity–petroleum products<\/p>\n

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

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

DOI:<\/strong> 10.1520\/D5481-10<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology <\/td>\n<\/tr>\n
2<\/td>\nSummary of Test Method
Significance and Use
Apparatus <\/td>\n<\/tr>\n
3<\/td>\nReagents and Materials
Sampling
Calibration and Standardization
Procedure
TABLE 1 <\/td>\n<\/tr>\n
4<\/td>\nCalculation of Results
Report
Precision and Bias
Keywords
TABLE 2 <\/td>\n<\/tr>\n
5<\/td>\nA1. CALCULATION OF EQUATION COEFFICIENTS
A1.1
A1.2
A1.3
A1.4
A2. DETERMINATION OF TUBE VOLUME
A2.1
A2.2
A2.3
A2.4
A2.5
A2.6
A2.7
A2.8
A2.9
A2.10
A2.11 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

D5481-10 Standard Test Method for Measuring Apparent Viscosity at High-Temperature and High-Shear Rate by Multicell Capillary 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>\n2010<\/td>\n6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":65542,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2637],"product_tag":[],"class_list":{"0":"post-65541","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\/65541","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\/65542"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=65541"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=65541"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=65541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}