• The specific gravity of cement can be defined as the ratio of the density or the mass of cement to the density or the mass of reference material. (dreamcivil.com)
  • Determination of Field Density Test of Soil by Core Cutter Method. (civilseek.com)
  • Density is the mass per unit volume of a substance while specific gravity is the ratio of the substance's density to the density of water. (civilseek.com)
  • Specifies a method of determining the specific gravity (relative density) of solutions used in photographic processing. (iso.org)
  • Using the mass values thus obtained and formulas in this test method, it is possible to calculate density, relative density (specific gravity), and absorption. (geocomp.com)
  • Apparent specific gravity pertains to the relative density of the solid material making up the constituent particles not including the pore space within the particles which is accessible to water. (spaspecialcommitteesibu.com)
  • The specific gravity (1) of a substance at any temperature is the ratio of its density at that temperature to the density of some standard substance, generally the maximum density of water (i.e. the density of water at 4 C. (vias.org)
  • It evidently follows from these definitions that, if ρ be the density of a substance, σ its specific gravity, and ω the maximum density of water, ρ=σω, and if M be the mass of a body consisting of the substance, whose volume is V, then M=Vρ=Vσω, and the mass of a volume of water equal to the volume of the body = Vω. (vias.org)
  • Thus, the numerical value of the density of a substance on the C.G.S. system of units is the same as the number which expresses the specific gravity of the substance, this latter being of course a ratio, and therefore independent of units. (vias.org)
  • It is unfortunate that in many physical text-books the terms "density" and "specific gravity" are used synonymously, the former being generally employed for gases and liquids, the latter for solids. (vias.org)
  • There being now also two names, "density" and "specific gravity", it seems reasonable to assign the one name to the one idea and the other name to the other idea, as suggested by Maxwell, "Theory of Heat" (ed. 1872, p. 82). (vias.org)
  • When there is no danger of confusion arising from using the term density when specific gravity is meant, there may be no harm in doing so, but beginners should be careful to use the two words strictly in the senses here defined. (vias.org)
  • Specific gravity is a type of relative density in which the substance density is compared to that of water at 3.98°C. Value reported has been rounded down from 1.5235. (europa.eu)
  • API expresses the gravity or density of liquid petroleum products. (engineeringtoolbox.com)
  • An introduction to density, specific weight and specific gravity. (engineeringtoolbox.com)
  • density Specific gravity of the lubricant at a given temperature point. (cpan.org)
  • This includes the determination of the specific gravity (SG) and bulk density (BD) of rocks, ores and aggregates using the pycnometer and water and air method or wax method if required. (sgs.com)
  • Specific gravity" is the density of a material relative to water. (sgs.com)
  • Instead, a rock's "bulk density" arises as a result of the percentage of all minerals in a sample multiplied by the specific gravity of each. (sgs.com)
  • SGS experts work under carefully controlled laboratory conditions to determine the specific gravity and bulk density of your sample. (sgs.com)
  • Our specific gravity and bulk density tests provide key information you need to plan and design your processing operation. (sgs.com)
  • The media being measured must have a constant density (Specific Gravity) to use the differential pressure method. (yokogawa.com)
  • As noted before, density needs to be stable for the differential pressure method to be used. (yokogawa.com)
  • If you have the fuel oil density given in °API, use the API-to-gravity converter . (engineeringtoolbox.com)
  • The reference material that is used for the specific gravity determination of cement is Kerosene . (dreamcivil.com)
  • However, this test method does not define acceptable levels of penetration resistance because this determination must be made by each responsible user organization based on its own specific application and conditions. (cdc.gov)
  • 1.1 This test method covers the determination of the rate of extrusion of molten thermoplastic resins using an extrusion plastometer. (ansi.org)
  • For this method to work lubricant's viscosity @ 100C must be known or calculatable. (cpan.org)
  • This method describes a rapid procedure (1, 2, 3) for the measurement of the viscosity of 1% cellulose solutions using cupriethylenediamine saturated with cupric hydroxide [Cu(OH)2] as the solvent. (complianceonline.com)
  • However, the preferred procedure for pulps with less than 4% lignin, as defined by TAPPI T 222 "Acid-Insoluble Lignin in Wood and Pulp," is TAPPI T 230 "Viscosity of Pulp (Capillary Viscometer Method)," which should be used for referee purposes on these pulps. (complianceonline.com)
  • This study investigated perfluorohexyloctane (F 6 H 8 ) and silicone oil solutions designed to take advantage of the high specific gravity and interfacial tension of the F 6 H 8 and the high viscosity of silicone oil. (bmj.com)
  • Extraction Method: Steam Distilled from dried flowering herb. (vitacart.com)
  • 4.1 These test methods are useful in indicating the differences in absorption between the various dimension stones. (astm.org)
  • 1.1 These test methods cover the tests for determining the absorption and bulk specific gravity of all types of dimension stone, except slate. (astm.org)
  • Using the mass and weight measurements thus obtained and formulas in the method, it is possible to calculate three types of specific gravity and absorption. (spaspecialcommitteesibu.com)
  • Bulk specific gravity (SSD) is used if the aggregate is wet, that is, if its absorption has been satisfied. (spaspecialcommitteesibu.com)
  • The general procedures described in this method are suitable for determining the absorption of aggregates that have had conditioning other than the required soak, such as boiling water or vacuum saturation. (spaspecialcommitteesibu.com)
  • The values obtained for absorption by other methods will be diffirent than the values obtained by the required soak, as will the bulk specific gravity (SSD). (spaspecialcommitteesibu.com)
  • Nonlinear temperature compensation is specific to beer, not sucrose, and automatically ensures that fluids read between 10 and 40 °C (50 to 104 °F) are measured accurately. (misco.com)
  • Because tungsten minerals have a high specific gravity, they can be beneficiated by gravity separation, usually by tabling. (cdc.gov)
  • so that we are enabled, when we know the mass of a volume of water at any temperature, to calculate from the table the mass of the same volume at 4 C., and thus obtain the specific gravity required. (vias.org)
  • The sucrose-based Brix scale is the standard brewing scale in North America, while the D60/60 specific gravity scale matches the reference temperature of most brewing hydrometers. (misco.com)
  • Although the Brix scale is based on the relationship between sucrose and refractive index, the Specific Gravity scale is based on the actual relationship between true wort sugars and refractive index. (misco.com)
  • Phytochemical parameters showed refractive index 1.3660, specific gravity 0.913, acid value 1.285, iodine value 212.1085 and in HPTLC, Methanol extract of Vayasthapana Ghrita at 254nm showed 6 spots and at 366nm 2 spots whereas in methanol extract of Vayasthapana Gana Choorna at 254nm 5 spots and in 366nm 4 spots were present. (who.int)
  • This test method offers a procedure for evaluating medical face mask resistance to synthetic blood penetration that is useful in establishing claims for penetration resistance performance of medical face masks and ranking their performance. (cdc.gov)
  • A definitive procedure that produces a test result: Examples of test methods include, but are not limited to: identification, measurement, and evaluation of one or more qualities, characteristics, or properties. (cdc.gov)
  • AKI was associated with increasing post-shift specific gravity, a dehydration marker, (OR 1.24, 95% CI 1.02-1.52) and with lower electrolyte solution intake (OR 0.94, 95% CI 0.89-0.99). (cdc.gov)
  • Diagnostic methods used for detection of infection were direct wet mount preparation, flotation concentration, cold Kinyoun Ziehl-Neelsen stain and direct immunofluores- cence. (who.int)
  • Owing to the small size ditional information about the children was of the oocysts, the routine wet mount prep- obtained by means of a questionnaire filled aration and concentration methods have in with the assistance of the parents. (who.int)
  • Methods and Results Prevalence of disability types (hearing, vision, cognition, mobility, self-care, living independently) were compared with similarly aged adults from the general population as estimated by the American Community Survey and standardized to the CH STRONG eligible population to reduce nonresponse bias and confounding. (cdc.gov)
  • Therefore, when using this test method to make claims for the performance of medical face masks, the specific conditions under which testing is conducted must be described. (cdc.gov)
  • A precision and bias statement shall be reported at the end of a test method. (cdc.gov)
  • This test method is used to evaluate the resistance of medical face masks to penetration by the impact of a small volume (~2 mL) of a high velocity stream of synthetic blood. (cdc.gov)
  • Our SG and BD test procedures include the industry standard pycnometer, and when necessary, the water and air method or the wax method. (sgs.com)
  • Specific gravity is also required in the calculations associated with the grain size analysis , the consolidation , and compaction ( Standard Proctor Test and Modified Proctor Test ). (civilseek.com)
  • Hence, in order to calculate the volume of a body whose mass is known, or vice versa, we require only to know its specific gravity, and hence the practical importance of determinations of specific gravity. (vias.org)
  • Specific gravity is an important indicator that defines how much heavier a substance is than water or any reference material of the same volume. (dreamcivil.com)
  • The specific gravity of a body is the ratio of the mass of the body to the mass of an equal volume of some standard substance, generally water at 4 C. (vias.org)
  • And for the C.G.S. system of units, moreover, the numerical value of the mass of a body is equal to the number which expresses its volume multiplied by its specific gravity. (vias.org)
  • The specific gravity of cement depends upon the moisture content. (dreamcivil.com)
  • During bad weather conditions or extreme moisture content conditions, the specific gravity of cement can reach as high as 3.19 g/cc. (dreamcivil.com)
  • Content of nickel and vanadium in more than 120 crudes as function of specific gravity@15°C/60°F. (engineeringtoolbox.com)
  • Pigment content is determined in accordance with SCAQMD method 318-95. (ohio.gov)
  • Bioimpedance analysis methods enable the assessment of total body water content, but their use is still under debate. (nih.gov)
  • 6 This difference in efficiency between silicone oil and gas is inherent in their physical properties in terms of surface energy and specific gravity, and cannot be modified except perhaps by strategies such as posturing or the use of surgical explants. (bmj.com)
  • The addition of five clinical risk factors (serum prostate-specific antigen, patient age, previous negative biopsy, digital rectal examination, and family history) significantly improved the AUCs of the models (0.95, 0.92, 0.92, and 0.87, respectively). (bvsalud.org)
  • Where sample volume allowed, we performed microscopic examination using the saturated salt (specific gravity 1.2) passive flotation method as previously described ( 4 ). (cdc.gov)
  • Dual scale Digital Beer Refractometer for measuring Brix or Specific Gravity (D 60/60) of wort. (misco.com)
  • Featuring both a Brix and Specific Gravity (D 60/60) scale this digital beer refractometer is equipped to make standard measurements of wort used in beer making. (misco.com)
  • ABSTRACT This study compared the validity of the haemoglobin colour scale (HCS) and clinical signs in diagnosing anaemia against Sahli's haemoglobinometer method as the gold standard, and assessed the reliability of HCS. (who.int)
  • An overview of common test methods and typical ranges of variation of petroleum quality parameters. (engineeringtoolbox.com)
  • Conclusion: The applied pharmacognostic and HPTLC method has been shown to be selective, linear, precise and accurate. (who.int)
  • Material and methods: Pharmacognostic, phytochemical and HPTLC of Vayasthapana Gana Choorna and Vayasthapana Ghrita have been carried out as per standard protocol. (who.int)
  • The method will be useful for quality control of the raw material and pharmaceutical preparations. (who.int)
  • Subsequently the volume of the sample is determined by the displacement of water method. (geocomp.com)
  • 3. Documentation verifying the method of shipment and storage conditions of the comparator product from the time of purchase to the time of study initiation. (who.int)