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Sunday, July 12, 2020 | History

2 edition of sinker method for the determination of specific gravities. found in the catalog.

sinker method for the determination of specific gravities.

N. W. Cummings

sinker method for the determination of specific gravities.

by N. W. Cummings

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  • 22 Currently reading

Published in [n.p .
Written in English


The Physical Object
Pagination10 p.
Number of Pages10
ID Numbers
Open LibraryOL14886690M

Density and Specific Gravity ASTM D, ISO Density and Specific Gravity ASTM D, ISO Scope: Density is the mass per unit volume of a material. Specific gravity is a measure of the ratio of mass of a given volume of material at 23°C to the same volume of deionized water. TE Method of Test For The Determination of Bulk Specific Gravity, Apparent Specific Gravity and Absorption of Coarse Aggregate TF Method of Test For Moisture Content In Soils and Aggregates TD Method of Test For Determination of The Resistance R-Value of Treated and Untreated Bases, Subbases and Basement Soils by The Stabilometer.

Comparison of test methods for determining specific gravity and absorption of aggregate. not statistically different from those measured according to the standard hour soaking method. To reduce the testing time for QA purposes, soaking aggregate samples for 10 min- utes should be considered as an alternative to the standard hour soaking. Specific gravity is the (unit less) ratio of the solid wood density to the density of water at the same temperature. The solid wood density may be determined using the green volume, the ovendry volume, or intermediate volumes. This is notable as wood shrinks about 8%–15% as it dries. The basic specific gravity always uses the green volume. [The density of water at 20°C (68°F) is lb per cubic foot, .

Some presses have been adapted to run high-specific-gravity compounds incorporating up to 90% metal powder for molding fishing-line sinkers and munitions. Flambeau finds the right balance of custom & proprietary molding. Accurate measurement and determination of liquid viscosity data under high pressure conditions requires knowledge of liquid density data. In this study, a high pressure falling sinker-type viscometer was used to determine the viscosity of n-dodecane at elevated pressures up to MPa without supplementary knowledge of liquid density.


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Sinker method for the determination of specific gravities by N. W. Cummings Download PDF EPUB FB2

Get this from a library. A sinker method for the determination of specific gravities. [Nephi Willard Cummings]. Sinker—A sinker for use with specimens of plastics that have specific gravities less than The sinker shall: (1)be corrosion-resistant; (2) have a specific gravity of not less than ; (3) have smooth surfaces and a regular shape; and (4)be slightly heavier than necessary to.

These test methods describe the determination of the specific gravity (relative density) and density of solid plastics in forms such as sheets, rods, tubes, or molded items.

Two test methods Author: ASTM D. Keywords: Pycnometer, specific gravity, density, density bottle, glass jar, dry soil. The specific gravity of solid particles can be determined in the laboratory using the following methods: 1. Density bottle method 2. Pycnometer method 3. Measuring flask method 4.

Gas jar method 5. Shrinkage limit method. Density bottle method. Specific gravity is commonly used in industry as a simple means of obtaining information about the concentration of solutions of various materials, or of quality control for polymer materials: to evaluate physical changes, or determine the degree of uniformity between samples or lots.

True specific gravity - Apparent specific gravity True specific gravity No~~-True specific gravity determined as in * and apparent speci- fit gravity as in Identification of the sample, date when sample was taken and type of stone shall be reported.

Bag eta/.:Simple test method for density measurements of plastics Specific gravity (sL) = (w2-w)l(w1 - w) 0 0 0 (3) where, w, is the mass of the empty pycnometer, w1 and w2 are the masses of the pycnometer filled with water and filled with the liquid respectively.

aggregate (field method), and d) Determination of surface moisture in fine aggregate (field method). DETERMINATION OF SPECIFIC GRAVPPY AND WATER ABSGRPTION Object-i This test covers the procedures for determining the specific gravity, apparent specific gravity and water absorption of aggregates.

The most widely used method is the buoyancy technique which utilizes Archimedes' principle: a body immersed in fluid indicates an apparent loss in weight equal to the weight of the fluid it displaces.

This ancient principle, from around BC, is precisely what is used nowadays to determine density gravimetrically. B = weight in gm of specific gravity bottle at 30°C C = weight in gm of specific gravity bottle with water at 30°C (Ref: A.O.A.C 17th edn,Official method Specific gravity (Apparent) of Oils, Pycnometer method / I.S.I.

Hand book of Food analysis (PartXIII)page 72) Determination of the Refractive Index Definition. These test methods describe the determination of the specific gravity (relative density) and density of solid plastics in forms such as sheets, rods, tubes, or molded items.

Two test methods are described: Test Method A—For testing solid plastics in water, and Test Method B—For testing solid plastics in liquids other than water.

METHODS FOR THE DETERMINATION OF SPECIFIC GRAVITY Myles J. McDonough Chandler Engineering Company N. Indianwood Avenue Broken Arrow, Oklahoma HISTORY The terms Specific Gravity and Relative Density have been used for a number of years.

Yet there seems to be some confusion over what exactly they mean. Scope* These test methods describe the determination of thespecific gravity (relative density) and density of solid plasticsin forms such as sheets, rods, tubes, or molded items Two test methods are described Test Method A—For testing solid plastics in water, and Test Method B—For testing solid plastics in liquidsother.

The specific gravity of kerosine is g/cc. How to Calculate Cement Specific Gravity. One can easily determine the value of specific gravity of cement using Le Chatelier Flask method. Determination of specific gravity of cement at the site level can be easily done using this is an experiment.

Required Materials & Apparatus. OBJECTIVE To determine the density & specific gravity of a liquid using beaker and density bottle method. THEORY. Specific gravities, relative to an isotopically defined pure water at 4°C, have been determined on natural sea waters covering the salinity range 9–41% at temperatures of 0–25°C.

A mathematical expression has been computed for the relationship between specific gravity, salinity and temperature. This test method is suitable for determining the bulk specific gravity or bulk density by immersion of the entire item or a representative cross section in water.

This test method involves the weighing of a one piece specimen in water, using a sinker with plastics that are lighter than water. chapter 16 - Specific Gravity Determination - using pycnometer Determination of specific gravity of solids of a soil sample using pycnometer bottle Read Dete.

How to Measure Specific Gravity. The relation of the weight of a substance to its volume should be kept in mind in all cases where both weight and volume are dealt with. Students are apt to imagine that on mixing equal volumes of, say, sulphuric acid and water, an acid of half the strength must be obtained.

If the statement of strength is in parts by weight this will lead to considerable error. Scope* These test methods describe the determination of the specific gravity (relative density) and density of solid plastics in forms such as sheets, rods, tubes, or molded items.

Two test methods are described: Test Method A—For testing solid plastics in water, and Test Method B—For testing solid plastics in liquids.

Method for determination of density, specific gravity or API gravity of crude petroleum and liquid petroleum products (Hydrometer method) (BS ) [British Standards Institution] on *FREE* shipping on qualifying offers. Method for determination of density, specific gravity or API gravity of crude petroleum and liquid petroleum products (Hydrometer method) (BS )Author: British Standards Institution.

The optional kit allows density determination of porous and viscous substances as well as solids and liquids. Simple method to determine specific gravity or particle density - Duration: These test methods cover the determination of the specific gravity of soil solids that pass the mm (No.

4) sieve, by means of a water pycnometer. When the soil contains particles larger than the mm sieve, Test Method C shall be used for the soil solids retained on the mm sieve and these test methods shall be used for the.