Moisture content affects the processibility, shelf-life, usability and quality of a product. Weigh each of the empty moisture cans with their lids and record their weight W1 and its number; you may have to mark it with a felt tip pen. In this method of Moisture Content Determination of soil, a known weight (W) of the representative wet soil sample is dried over night in an oven operating at temperatures between 105°C and 110°C ; and the weight of dry soil sample (W solid) is obtained. Moisture determination in dried apples by infrared drying 41 In the case of using the automatic mode, the temperature must be chosen so that the results correspond to the moisture content determined by a reference method. When ash is too high in flour, this indicates too much contamination of flour with bran (outer covering of wheat kernel Moisture content of soil plays an important role in understanding the behavior of soil. Data and observation sheet for water content determination S.No. Moisture content is one of the most important characteristics in … Moisture Content of soil can be determined by two methods; 1. We require reducing it to about 10-12%. 3.1 Introduction. It is usually expressed as a percentage or weight basis in seed-testing laboratory. Soils store this irrigation water for future use by the plants. moisture content report - TITLE LAB REPORT ON MOISTURE CONTENT TEST JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY NAME WABURI FRANCIS GATUBU, 6 out of 6 people found this document helpful, This experiment is performed to determine the moisture content of soil. Other sources of error include: the time period used for drying the soil, the sample size, and weighing errors. We were given the challenge of finding which mixture of different soil types was best for growing alfalfa in. Laboratory Determination of Moisture Content Apparatus Required Non-corrodible container; Digital Weight Machine (accuracy of 0.04% of mass of sample); Electric oven, maintain the temperature between 105 0 C to 110 0 C This procedure is adequate for small amounts of soil (10 to 200 grams). 2.1 moisture content The most significant is the oven temperature. 1 Date AS 1289 B1.1-1977. 4.08”, and also AASHTO T-265, found under “AASHTO Materials: Part II: Tests”. DETERMINATION OF MOISTURE CONTENT OBJECTIVE Determine the natural content of the given soil sample. Seed moisture content is one of the most important factor influencing seed quality and storability, Therefore, its estimation during seed quality determination is important. It is important to food scientists for a number of different reasons: Legal and Labeling Requirements. Hence for moisture content determination the soil samples are dried to the temperature at which only pore water is evaporated. DETERMINING MOISTURE CONTENT IN SOIL MATERIALS TXDOT DESIGNATION: TEX-103-E CONSTRUCTION DIVISION 2 – 7 LAST REVIEWED: SEPTEMBER 2014 Class G2 in accordance with Tex-901-K for specimens with a mass greater than 200 g. 3.4 Specimen containers for conventional ovens, with close fitting lids if specimen is less than 200 g. 3.5 Specimen containers for microwave ovens, … 45 Moisture determination is an important and most widely used analytical measurements in the processing and testing of food products (3). DETERMINATION OF MOISTURE CONTENT AASHTO T-265 or ASTM-2216 LABORATORY REPORT No. The temperature of the drying oven should be kept between 105 º and 110 ºC, and the cans should remain in the oven for at least 24 hours; After 12 to 18 hours (or overnight), weigh and record the new weight of the moisture can with the dried soil and its lid W3. *A Summary of Changes section appears at the end of this standard 2. Moisture content determination via loss on drying. The soil sample should be loosely placed in the container. Moisture content determination is also included so ash content data can be expressed on both a wet weight basis and a dry weight basis. Content Determination,” Tech. Report GL-88–21, Department of the Army, Water ways Experiment Station, Corps of Engineers, Vicksburg, MS, November 1988. no 1 from CIVE 328 at Louisiana State University. The average moisture content of all e five samples gave a calculated value of 23.414% which is the natural moisture content of the soil sample that was given. This is caused by the ability of sugar to bind water. Cereals and cereal products-Determination of moisture content (Routine method) ERRATUM. Determination of Protein Content in Biomass Laboratory Analytical Procedure (LAP) Issue Date: 05/23/2008 B. Hames, C. Scarlata, and A. Sluiter Technical Report NREL/TP-510-42625 Revised May 2008 National Renewable Energy Discover everything Scribd has to offer, including books Water Content of Soil Test – Procedure, Result & Report. If the pore space is occupied entirely by air, the soil is completely dry. Report the moisture content of the soil to three significant figures. Like soil (soil moisture), rock, ceramics and wood. Apparatus Container: Any suitable noncorrodible airtight container. View Lab Report - DETERMINATION OF MOISTURE CONTENT lab. Determination of Moisture and Total Solids . Result/ Discussion: Moisture assays can be one of the most important analysis performed on a food product and yet one of the most difficult from which to obtain accurate and precise data. Course Hero is not sponsored or endorsed by any college or university. Moisture content of soil shows the degree of, AASHTO T 96 and ASTM C 131: Resistance to Degradation of Small-Size, ASTM C 535: Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine. A knowledge of the moisture content is used as a guide to the classification. What is a Ground Source Heat Pump? PRACTICALS, SOIL PRACTICALS Leave a comment. Moisture content influences the taste, texture, weight, appearance, and shelf life of foodstuffs. ASTM has designeated it with a Standard, ASTM D-2216-90 which can be found in “ASTM Standards vol. If you are not testing a field sample, then moisten the sample given to you (20 to 40 g) with a small amount of water and thoroughly mix it with a spatula. (See Note 4.) Report The report and data sheet shall include the following: 1. Miscellaneous: knives, spatulas, scoops, quartering cloth, sample splitters, etc. Moisture content measurement is mainly used to perform weight-volume calculations in soils. Determination of Moisture Content 1. Measurement of Moisture Content 1. Balance: of sufficient sensitivity to weigh the soil samples to an accuracy of 0.04 percent of the weight of the soil taken for the test Oven: thermostatically controlled, with interior of non-corroding material to maintain the temperature at 110 ± 5°C. It is important to food scientists for a number of different reasons: Legal and Normally, the water content of a soil is measured by oven drying the soil at 110 ºC. Also, moisture content is a measure of the shrink-swell and strength characteristics of cohesive soils. 1. Therefore it is of direct economic importance to the processor and the consumer. 4.08”, and also AASHTO T-265, found under “AASHTO Materials: Part II: Tests”. Det er gratis at tilmelde sig og byde på jobs. 3. In All Topics, Food Science, Food Science Experiments 0 Comments. DETERMINATION OF MOISTURE CONTENT OBJECTIVE Determine the natural content of the given … How does it Work? Precision Estimates of AASHTO T265: Laboratory Determination of Moisture Content of Soils. The purpose of irri.gation is to replenish the water stored in soil that has been extracted by living plants and used by them for their growth. Oven Dry Method. This weight loss will be then used to calculate the percentage of water content w in the soil. Much larger soil samples may require occasional stirring so that a uniform drying takes place; Remove from the oven with tongs or heat-treated loves and weigh immediately; some manuals claim that convection currents affect the result, but this writer has never found this to be true; The total weight difference between W3 and W2 is the weight of the water that was evaporated from the soil. When Moisture content of food products is essential to be scientifically determined mainly for the following reasons: Food quality – the extent of moisture is one of the major contributory factors to foods’ desirability and acceptability. Discover the world's research. Economic. The amount of moisture in agricultural materials and food products affects the potential for storage without molding or deterioration from chemical reactions such as oxidation. Three to five moisture cans (tin or aluminum) with their lids; Temperature controlled oven (a forced-draft type). Water is present in most naturally occurring soils and has a profound effect in soil behaviour. Read More. The report shall include all details required for the complete identification of the sample, and in particular the date on which the analysis was carried out. The moisture content of soil determination is a routine laboratory procedure. Weight of container with lid +wet soil W 2 gm . Pixton and R.W. This temperature is used because it is high enough to evaporate all the water present in the pore spaces of the soil but is not so large that it drives water out of the structure of most minerals. Water is a major constituent of most food products. CIVICATEGORIES. Sylvia Henderson, The relationship between moisture content and equilibrium relative humidity of pig feed, Journal of Stored Products Research, 21, 3, (131), (1985). Get step-by-step explanations, verified by experts. Although it is a simple experiment to perform, there are several sources of error that can occur in the experiment to determine the moisture content of soil. Test applied: ASTM D2216: Standard Test Method for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass. Concrete IS Code; Design Load; CONCRETE CALCULATOR; MATERIAL CALCULATOR; FSI CALCULATOR ; CONCRETE MIX DESIGN; … 1 Date tested: January 16, 2014 Date submitted: January 23, 2014 Submitted to: Dr. Kenneth L McManis Prepared by: CIVE 328 – Geotechnical Engineering Laboratory Department of Civil Engineering University of Louisiana at Lafayette 1 For example, substances which are too dry could affect the consistency of the end product. 2. Lab Report 1 OBJECTIVE: This experiment is performed to determine the moisture content of soil. The degree of compaction of the soil largely depends upon the quantity of moisture … With Arizona Instrument’s Computrac Moisture/Solids/Ash Analyzers, testing moisture and ash content is an easy, pain-free process and can speed up production time and improve food quality control. Stay informed - subscribe to our newsletter. DETERMINATION OF MOISTURE CONTENT AASHTO T-265 or ASTM-2216 LABORATORY REPORT No. The water content is also used in expressing the phase relationships of air, water, and. Moisture content determination is also included so ash content data can be expressed on both a wet weight basis and a dry weight basis. For example, jams and jellies may have a very high moisture content (up to 90%), but the water activity may be relatively low (0.7). doi: 10.17226/22920. Seed moisture content is one of the most important factor influencing seed quality and storability, Therefore, its estimation during seed quality determination is important. Sample shall be washed and oven-dried at a temperature of 105 °C-110 °C and should conform to one of the grading in observation. There are legal limits to the maximum or minimum amount of water that must be present in certain types of food. In outdoor environments, water is added to soil naturally through rainfall or deliberately with the irrigation of plants. The consistency of a fine-grained soil largely depends on its, water content. 2. Because it is … for 1+3, enter 4. THEORY: For many soils, the water content may be an extremely important index used for establishing between the way a soil behaves and its properties. Howe , The suitability of various linear transformations to represent the sigmoid relationship of humidity and moisture content , Journal of Stored Products Research , 19 , 1 , (1) , (1983) . 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