The Sample should be dried in stainless steel containers. for /Contents 72 0 R Weigh the ash with crucible and lid when the sample turns to gray. >> How are samples heated in the drying oven and in the moisture analyzer? in wood or pulp, ATRO is commonly used. Moisture content = (weight of moisture / weight of dry soil) * 100%, Weight of moisture = (Weight of container + wet soil) (Weight of container + dry soil), Weight of dry soil = (Weight of container + dry soil)) (Weight of empty container). Read our application note to learn more. Furthermore, moisture content impacts on price and there are statutory rules for some products governing the maximum permissible moisture content (e.g. /Contents 23 0 R Learn how moisture analyzer is used to reliably measure the dry content in chemical industry. Homogenize the sample (20 g) with 16 ml of distilled water, 40 ml of chloroform and 80 ml of methanol at the speed of 9,500 rpm for 1 min at 4oC. Literature: White Papers, Guides, Brochures. After drying, transfer the dish with partially covered lid to the desiccator to cool. Association of Analytical Communities (AOAC) 1985. Different samples require different drying methods according to the individual sample properties. The LabX report generator enables you to create elegant reports with charts which can be printed out or saved electronically. Heating of sample by convection. The moisture method datasheets describe method parameters, including sample preparation, for both the moisture analyzer and the reference method (e.g. 141 Moisture Content represents the quality of any sample. Take the sample into extraction thimble and transfer into soxhlet. . When using a moisture analyzer, the sample heats up and dries by absorbing infrared radiation from the heating element. ); (2) to compare the effects of dryingtemperature, time, and sample treatment in an air oven on the moisture content of pearl milletusing The temperature at which the sample is oven-dried ranges from 110oC +- 5oC. 8 of this text. Routine testing of the heating and weighing unit are therefore necessary to ensure reliable determination of the moisture content and correct functioning of the instrument. drying oven procedure). This method determines moisture content in flour, semolina, ground grains, feedstuffs, and their adjuncts. /Annots 7 0 R To find a suitable moisture method you need to understand the characteristics of your sample and choose suitable method parameters such as the drying program, drying temperature and switch-off criterion, as well as appropriate sample preparation. /Filter /FlateDecode /Producer (PyPDF3) The most important is variability of the heating temperature, followed by the weighing performance. This is a common misconception. Determination of fat content (AOAC, 2000) Reagents - Petroleum ether Method 1. Place the lid after complete heating to prevent loss of fluffy ash. Which method should I use for moisture content determination? Place the dish with sample in the oven. Our reference paper will guide you through the setup of a robust moisture method for your sample including the right sample preparation and sample application. In the drying oven, samples are heated by convection. /T1_2 18 0 R It is not applicable to ground wheat. This procedure complies the AOAC 930.15 method.. To determine the gradient of the line joining the given staff stations A and B and to find the Reduced Level of station B. Dry the empty dish and lid in the oven at 105C for 3 h and transfer to desiccator to cool. In general there are two ways to find a suitable LOD method for your sample. Heat at 550C overnight. /ProcSet [ /PDF /Text /ImageC ] >> A barcode reader attached to the balance ensures that no mix-ups occur and weighing results are correctly logged against each sample. Mass is determined before and after drying. /Annots 71 0 R After calculating the moisture content of each sample, we also have to find the average value to get the accurate value of moisture content. NIR has been applied to moisture content analysis of a wide variety of food commodities and is an official method for moisture content determination in dried vegetables (AOAC Method 967.19). Water specific, no other solvent or "moisture" determined Fast, typically 0.5 to 3 mins per sample Measure from 2ppm to 100% water Compact instruments, automatic calculations, connect Mettler Toledo balances for complete result calculations, Requires dedicated chemicals and chemical know-how Sample preparation can be critical for complete water extraction (homogenizer, long extraction times). Calculation Ash (%) = Weight of ash 100 Weight of sample 4. The moisture content is one of the most common properties in characterizing the engineering behavior in soils. LabX saves everything in a secure database so you can be sure your data is safe. /CropBox [ 0 0 617 793 ] 5. Place the dish with sample in the oven. Often reference procedure (for historical reasons this procedure often forms part of legislation) Several samples can be determined at the same time Large sample volumes possible, Very long determination period (hours) Substances other than water may evaporate Prone to errors because of the high level of manual handling and calculations involved Unsuitable for at-line use - requires analytical balance and dessicator. There is no one-size-fits-all method for moisture content . Please reload the page. To develop a reliable moisture method the sample at hand therefore should be understood and a loss on drying method, including sample preparation and presentation, that fits the sample should be developed. Results can be printed out for your lab journal or saved on a USB stick to be saved electronically. ->4TOCn~^K da'PTl>LZ9S,{C_B3j}ng`&[Fm/]5{ eBpa}[=Y*B*e@B50r1M=?[m5!a.f C. /Type /Page After the cooling of the sample, again weigh the sample with the container and take it as W3. For full access to this pdf, sign in to an existing account, or purchase an annual subscription. Sometimes, for example, in goods-in or final product quality control, moisture analyzers are used in parallel with a drying oven. METTLER TOLEDO's application database contains over 100 free ready-to-use cross-validated drying methods. Use of a barcode reader is fully supported by the differential weighing application on the balance and by LabX. These methods determine moisture content as loss in weight of a sample when heated under specified conditions. This method is applicable to finished, kilned malt with moisture content sufficiently low to permit grinding in a mill. Spread the sample to the uniformity. Place the bottle and lid in the incubator at 105oC overnight to ensure that weight of bottle is stable. /Parent 1 0 R The formula is often used in connection with tables in Methods 82-21.01, 82-22.01, and 82-23.01. Immediately connect flask to digestion bulb on condenser and with tip of condenser immersed in standard acid and 5-7 drops of mix indicator in receiver. Loss on Drying. 3. Weigh about 5 g sample into the crucible. Search for other works by this author on: This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (, Analysis of 10 phthalate esters in water-based adhesives by supercritical fluid chromatographytandem mass spectrometry combined with spherical carbons-based dispersion solid-phase extraction, An Antiviral DrugPeramivir: Degradation and Identification of Impurities and the Endorsement of HPLC-MS Method, Amplicon Sequencing Minimal Information (AsqMI): Quality and Reporting Guidelines for Actionable Calls in Biodefense Applications, Validation of the CompactDry Nissui BC for Enumeration of Bacillus cereus in a Variety of Foods: AOAC Performance Tested Method, Comprehensive Quality Evaluation of Qizhi Xiangfu Pills Based on Quantitative Analysis of Multi-Components by a Single Marker Combined with GC Fingerprints and Chemometrics, https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model, Receive exclusive offers and updates from Oxford Academic. A METTLER TOLEDO instrument provides comparable and traceable results in . Sometimes, for example, at goods-in or during final product quality control, moisture analyzers are used in parallel with a drying oven. Calculate the lipid content. >> The mass of soil for the test performance is taken according to the grading of the soil. I am using the drying oven procedure. 4. A moisture content determination model for an air oven was developed to describe the effect . 4. ZCW0.pnduzPJ10 nzH)2=s9 l\ This test aims to introduce basic concepts, procedures, and specifications that are used to find the moisture content of different samples of soil. 5. Continual determination of mass during drying process. 1. However, it is acceptable to use a moisture analyzer if you can prove its results are the same as those from the drying oven procedure and are of the same level of accuracy. Dry for 3 h at 105C. /img0 70 0 R hbbd``b`~@` ,A3qH0w>hq7HH$La`bd 20x@ 5 2. endobj 5% (w.b.). The magnitude of this loss is shown to be from 0.25 to 1.5%, depending on the type and treatment of the tobacco. Incubate the bottle at 80-90oC until solvent is completely evaporate and bottle is completely dry. Different industries use different units e.g. The procedures may also be used to dry samples required for other tests. 3. << Determination of Moisture in Hemp and Cannabis Plant Matter. Good labelling is key. 4. It is not applicable to samples containing water-miscible volatile substances or to samples containing added monoglycerides. Basically, a small sample of grain (ground or unground) that represents a larger sample set of that grain is placed in a small metal dish and the weight of the sample is recorded. File size 71KB, NATIONAL HIGHWAYS AUTHORITY OF INDIA 4-Laning and Strengthening of Existing 2-Lane Road from Km 265.000 to 380.000 Dhule, JOB NO. 144 Calculation Fat (%) = Weight of fat 100 Weight of sample 5. /Length 1396 Fast analysis with the moisture analyzer is done to optimize processes and the drying oven is used for official documentation purposes. As moisture content the sample decreases, lower the lamp height gradually until mark 5-4.5. endobj If none of the pre-set SOC are suited, some instruments offer a customizable option to fine-tune the method further. The moisture content percentage is determined from the difference in weight before and after drying. 4 0 obj If you own a METTLER TOLEDO moisture analyzer (HX204, HS153 or HC103) use the integratedMethod Wizardfunctionality that guides you step-by-step to a reliable moisture method with minimum effort. Note: Ash content of this milk sample could be determined by placing the milk sample, dried at 100C for 3 h, in a muffle furnace at 550C for 18-24 h. However, thereference method for loss on drying (drying oven method) can take many hours to reach a result. There was an error retrieving our menu. Weigh the crucible and lid to 3 decimal places. By validating the results of halogen moisture analysis against those from the drying oven, companies can benefit from a convenient and compliant alternative loss on drying solution. from the drying oven or other moisture/water determination procedure) you can orient your method development to target this reference value. 4. Reweigh the bottle and its dried content. The European Pharmacopeia has recently updated Chapter 2.2.32, "Loss on Drying", to include halogen moisture analyzers as an acceptable alternative to the drying oven reference method. /Rotate 0 The dry content remaining may be termed the total solids (TS). Any combination of filter and full text search is possible. The accuracy of a moisture analysis result may be influenced by several factors. Contact us if you don't find what you need. However, the reference method for loss on drying (drying oven method) can take many hours to reach a result. 2. Dry the empty dish and lid in the oven at 105 C for 3 h and transfer to desiccator to cool. Place the crucible and lid in the furnace at 550C overnight to ensure that impurities on the surface of crucible are burned off. Other attributes and requirements are also covered. The method also describes a standardization . /Kids [ 3 0 R 4 0 R 5 0 R ] 4. 553 0 obj <> endobj The oven-drying methodology consists of heating by convection with forced or circulating hot air. 4. To find your application use the filters for 'Sample', 'Industry' or use full text search. Weigh about 3 g of sample to the dish. The objectives of this study were: (1) to determine the effectof air oven drying methods on the moisture content of ground and whole pearl millet grain inthe moisture content range of 11.00-41.00% (w.b. /Count 3 To determine the initial and final setting times for the given sample of cement. Dry for 3 h at 105C. Calculation Moisture (%) where: = (W1-W2) 100 W1 W1 = weight (g) of sample before drying W2 = weight (g) of sample after drying 2. Weigh the empty dish and lid. Store in a desiccator until samples are weighed. This method determines moisture and any materials that are volatile under conditions of test. 44-20.01 MoistureASBC Air-Oven Method. It is defined as the mass ratio of pore water to solids and generally expressed as a percentage that shows the amount of moisture content present in that soil sample. Ronald F. Clayton Explore the links below to see our wide range of tools and our application method library. It looks like your browser does not have JavaScript enabled. The forced draft oven method is recommended for adoption as official, first action. Recommended temperature is high enough to drive off most water content but low enough to minimize loss of other volatile compounds. There is no one-size-fits-all method for moisture content determination as the samples vary greatly in properties. Which technique should I use for moisture content determination? Analysis of AOAC Water 4 Analysis for air or vacuum oven method Homogenous Sample forums.usc.edu.eg 2 / 3. When fumes are no longer produced, place crucible and lid in furnace. Learn how we and our ad partner Google, collect and use data. /Resources << 47 0 obj <>stream /XObject << Take advantage of METTLER TOLEDO's moisture analysis expertise to improve your moisture analysis processes. 2. The method is not applicable to naphtha extraction greases that contain solvents of fairly high boiling point that are driven off with difficulty. /Type /Pages However, it is acceptable to use a moisture analyzer if you can show its results are similar (accuracy and repeatability) to those from the drying oven procedure. Laboratory Determination of Moisture Content of Soils AASHTO Designation: T 265-15 1. 1 0 obj Moisture content (AOAC, 1999) Method 1. Report loss in weight as moisture. AOAC Official Method 984.20 Loss on Drying (Moisture) and Volatile Matter in Oils and Fats: Karl Fisher Method. endobj USP 731 <loss on drying>, AOAC and ISO describe the thermogravetric method using a drying oven as a standard procedure for determining moisture content. Determination of the moisture content of a test portion by drying in an oven 6 h at 70 1 C under pressure < 100 mm Hg (13.3 kPa). Equipment upgrades from the existing AOAC standard methods provide safer more efficient methods of analysis. The drying oven method is a thermogravimetric method (loss on drying) in which the sample is dried for a defined period of time at constant temperature. This method is applicable to finished, kilned malt with moisture content sufficiently low to permit grinding in a mill. As with the drying oven, the key to achieving accurate results lies in the development of the drying method. Determination of moisture content (AOAC, 2000) Method 1. It is the only non oven method that is approved by the AOAC for use with dried Safe Food Alliance offers an official maintenance program for the DFA Moisture Meter /Type /Page Water content of the sample should be nearest to 1% or 0.1%. Spread the sample with spatura. This method is primarily used to determine moisture content in feed. When compared with the same samples dried to constant weight in an atmospheric oven at 100C the vacuum dried product will show a 10 to 50% greater loss of weight depending on carbohydrate content. Is it possible? 2. 3. Vitamins fat cross-validating it against the drying oven. %PDF-1.5 % Everything which evaporates upon heating is named moisture. This method is not suitable for thermally unstable compounds. Our plastics method collection provides moisture methods for the most common plastic resins and compares them to the Karl Fischer titration method. Calculation Protein (%) = (A-B) N 1.4007 6.25 W Where A = volume (ml) of 0.2 N HCl used sample titration B = volume (ml) of 0.2 N HCl used in blank titration N = Normality of HCl W = weight (g) of sample 14.007 = atomic weight of nitrogen 6.25 = the protein-nitrogen conversation factor for fish and its by-products 3. Cool down in the desiccator. 3. Is it possible to switch to a moisture analyzer? Many industry regulations require manufacturers to follow a standard method. Check our proven and well-tested moisture methods in our application library to get a suitable starting point for your own method development. The gravity atmospheric oven was unsuitable for use in accurate moisture analysis because of wide temperature differentials within the oven cavity. Robert L Bradley, Jr, Margaret A Vanderwarn, Determination of Moisture in Cheese and Cheese Products, Journal of AOAC INTERNATIONAL, Volume 84, Issue 2, 1 March 2001, Pages 570592, https://doi.org/10.1093/jaoac/84.2.570. It can be represented as w. Ww = Weight of water content present in the sample, Ws = Weight of solid particles present in the sample. The grain moisture air-oven reference methods are procedures used to determine the percent moisture content in grain. 4. OwTq5:#rnsg/ All pans must be pre-dried for at least 3 h at 100C, and the glass fiber covers should be pre-dried for 1 h under the same conditions. 2 0 obj 5.2 Mechanical mill or food chopper The vacuum oven method requires a temperature of 100C to a point of constant weight (about 5 h) at 25 mm of Hg. This alternative method to the drying oven procedure reliably measures the moisture content in a fast and easy manner. << /Pages 1 0 R ATRO moisture (AM) is the amount of moisture in the sample given as a percentage of the sample's final (dry) weight. I have many different samples (liquid, paste-like, solid, powder). /CropBox [ 0 0 617 792 ] 4. The method is accurate but time consuming. 4 Apparatus Usual laboratory equipment and, in particular, the following. Cool the crucible in the desiccator (30 min). The weight loss due to vaporization of water is taken as the weight of moisture. H2SO4 3. /Font 24 0 R 8 0 obj If not, return the crucible and lid to the furnace for the further ashing. The procedure is applicable to chickpeas, lentils, peas, and all classes of beans with the exception of soybean. They should be corrosion resistant with a close-fitted lid so that it could prevent loss of moisture before the initial weighing. /Type /Catalog 0 AASHTO T 217 No balance or desiccator required Suitable for at-Iine use, Substances other than water may evaporate. All dried pans and covers must be stored in a desiccator with active desiccant. >> (AOAC) 2020. The total moisture content of the undiluted samples, as received for the purposes of this study, was determined by AOAC Method 950.46 and ranged from 54.03 to 74.99%. This method determines moisture content in cereals, legume grains, and a number of other commodities for which conversion tables are available. 1 2. Place the dish with sample in the oven. endobj Dry the empty dish and lid in the ov, Views 1,673 2. /MediaBox [ 0 0 617 792 ] Variables related to oven-drying samples of cheese and cheese products to determine moisture content were examined to provide more efficient and reproducible methods. After drying, transfer the bottle with partially covered lid to the desiccator to cool. /T1_1 17 0 R Place flasks in inclined position and heat gently unit frothing ceases. %%EOF /Annots 22 0 R Place the dish with sample in the oven. A moisture determination model of an air oven was developed to describe the effect of drying temperature, drying time, and sample treatment. GEOTECHNICAL ENGINEERIN, NY-08-022 Use covered Al dish !50 mm diameter and <40 mm deep. Literature: White Papers, Guides, Brochures. A robust drying method includes sample preparation, a suitable drying temperature, the appropriate drying program, and the right switch-off criterion. Here are some of the methods for determining the moisture content of foods and beverages: Oven Drying. Dry the empty dish and lid in the oven at 105C for 3 h and transfer to desiccator to cool. /Parent 1 0 R /Resources << Sample size of 3 0.25 g maximized surface area-to-volume ratios and yielded a lower error in final moisture content because of better control of ambient weight loss rates. Place and remove the sample in the oven with great care. [ ] Cool and add 60 ml of distilled water cautiously. We have to use the standard method with the drying oven but using a moisture analyzer would really speed up our processes. Typically, moisture content is determined via a thermogravimetric approach, i.e., by loss on drying, in which the sample is heated and the weight loss due to evaporation of moisture is recorded. The moisture determination of rough rice by the air oven method with different drying temperatures and drying times was studied. Recommended temperature is high enough to drive off most water content but low enough to minimize loss of other volatile compounds. Continue to dry until the readout on the scale is constant (30-45 mins). Weigh about 3 g of sample to the dish. Dry the empty dish and lid in the oven at 105C for 3 h and transfer to desiccator to cool. CALIBRATON OF SPEEDY MOISTURE METER. 27 0 obj <>/Filter/FlateDecode/ID[<7749ED4275BB7F4F8AE00EC394F8CE44>]/Index[10 38]/Info 9 0 R/Length 86/Prev 29391/Root 11 0 R/Size 48/Type/XRef/W[1 2 1]>>stream 10 0 obj <> endobj Use of combination of disposable 5.5 cm diameter aluminum sample pans with 5.5 cm diameter glass fiber filter pads for covers produced a smaller standard deviation for moisture analysis than did the AOAC pan and insert cover and filter paper covers. After centrifugation of the homogenate at 2,000 rpm at 4oC for 20 min, transfer the supernatant into a separatory funnel and allow to separate. /Font << 6. /Font 24 0 R After a sufficient period, remove the sample from the oven and place it in the desiccator for cooling the sample. All you need to know about moisture content determination is here: free industry-specific guides, e-learnings, and moisture content analysis FAQ. Moisture, These test methods cover the determination of the moisture content (MC) of solid wood, veneer, and other wood-base mater, EMBANKMENT AND BASE IN-PLACE DENSITY Weigh the empty the dish and lid. In general, all kinds of samples are suitable for both the drying oven and the halogen moisture analyzer. AOAC. A test measurement is run to verify the optimized method, and to determine a suitable switch-off criterion (SOC). SCOP. *PSoG;RMj)3S*82111 Weigh about 3 g of sample to the dish. 141 ANALYTICAL METHODS 1 Determination of moisture content AOAC 2000 Method 1 Dry the empty dish and lid in the oven at 105 C for 3 h and transfer to desiccator to. Learn how the right data management software and sample handling accessories can improve your results. 5. To find a suitable LOD moisture method you need to understand the characteristics of your sample and choose suitable method parameters such as the drying program, drying temperature and switch-off criterion. Our guide leads you through the important criteria to consider when purchasing a moisture analyzer. The method is not applicable for ensiled materials or for feeds containing urea or high sugar contents. Anton TenWolde Member AS, 2/13/2015 Revised In the drying oven, samples are heated by convection. Quick measurement (typically 5-15 min.) Sample is dried in the oven for a defined period of time at constant temperature. AASHTO T 255/T 265 (13) To apply the method to bread, prepare the sample according to Method 62-05.01. How to Ensure Reliable Moisture Analysis Results. << 4. Dry content and total solids mean the same thing. Moisture content is the amount of moisture in the sample given as a percentage of the sample's original (wet) weight. Dry for 3 h at 105 C. The method determines moisture content as the loss in weight of a sample when heated under specified conditions. The loss of weight that happens due to drying results in the measurement of the moisture content of the sample. Soils that contain gypsum or other minerals which have a loose bond with water, moisture content for these. The water content of materials contains extraneous materials that may require special treatment for the removal of these substances. In addition it is important to understand the best sample preparation method for fast and reliable measurements. endstream endobj startxref The moisture content is determined by weighing the sample before and after drying and determining the difference. \& vU_r:K~q0. 5. 2.2 Method B This is an alternative moisture method which removes the total moisture in two steps: (1) evaporation of moisture in air at room temperature (air-drying), and (2) the subsequent oven drying of the air-dried sample at . Oxford University Press is a department of the University of Oxford. /Im0 21 0 R How can I avoid errors when I'm recording results and doing calculations? It is defined as the mass ratio of pore water to solids and generally expressed as a percentage that shows the amount of moisture content present in that soil sample. Determination of ash content (AOAC, 2000) Method 1. Determination of moisture content (AOAC, 2000) Method 1. DETERMINATION OF MOISTURE IN SOILS BY MEANS OF CALCIUM CARBID, EMBANKMENT AND BASE IN-PLACE DENSITY The method of 105C for 72 h had the smallest standard deviation of the six . The drying oven method is a thermogravimetric method (loss on drying) in which the sample is dried for a defined period of time at constant temperature. Spread the sample to the uniformity. << Avoid excessive drying. Heating of sample through absorption of IR radiation from a halogen radiator. 3 0 obj The mass of water is related to the number of water molecules (nW) by the following expression: mw= nwMw/NA, 5. Among oven-drying methods for moisture determination, a method that dries at 135C for 2 h (AOAC, 2005; method 930.15) is one of the most widely used procedures for feed moisture. It is defined as the ratio of the weight of water to the weight of solids present in the soil sample. In most cases, the moisture analyzer can deliver an equivalent loss on drying moisture result, and typically better repeatability, in much less time, making it a fast alternative to USP <731> ("Loss on Drying") and ASTM D6980 Standard Test Method for Determination of Moisture in Plastics by Loss in Weight and other industry standards. The term "apparent moisture" is vised becavise oven drying also causes loss of volatile organic material. /T1_4 20 0 R Determine lipid content gravimetrically by measuring triplicate aliquots of the chloroform layer into tared containers, evaporate the solvent and weigh. 6. [emailprotected] Determination of Moisture Content is the most important proximate analysis. 105C. Dry for 3 h at 105C. Weigh the empty dish and lid. Manufacturers of these instruments will furnish conversion tables for their use, but instruments should be calibrated under conditions of actual use in comparison with oven methods. Use of this for oven moisture determination resulted in higher variance, which corresponded to the high temperature variation within the oven. /CropBox [ 0 0 617 793 ] Heat the sample about 14 h (heat rate of 150 drop/min). So, moisture content can be determined as: Moisture content = [(W2 W3) / (W3 W1)] * 100. Suitable tongs should be used to avoid any damage to the sample. 4. The moisture content is determined by measuring the mass of a food before and after the water is removed by evaporation. endstream endobj 11 0 obj <> endobj 12 0 obj <> endobj 13 0 obj <>stream /img0 73 0 R Check now! /ProcSet [ /PDF /Text /ImageC ] June 2nd, 2018 - oven drying method for moisture Comparison of Oven drying Methods for Determination of Moisture Content AOAC 2005 method 930 15 and the moisture AOAC Moisture Content scribd com May 30th, 2018 - 124 Analytical Methods 1 Moisture content AOAC 1999 Method 1 Dry the empty dish and lid in the oven at 105C for 3 h and transfer to . From interpreting technical specifications to understanding the functionality and performance of the instrument from a holistic point of view. Determination of Moisture Content is the most important proximate analysis. << . 8. endobj Many industry regulations require manufacturers to follow a standard method. This requires developing a drying method for the moisture analyzer andcross-validating it against the drying oventhrough a series of analyses. Determination of moisture content (AOAC, 2000) Method 1. endobj TOTAL EVAPORABLE MOISTURE CONTENT OF AGGREGATE BY, Standard Method of Test for /MediaBox [ 0 0 617 793 ] To determine the moisture content of fats and oils by moisture distillation. 3. 2. During the performance, heat resistant gloves should be used to prevent personal injury. Determination of moisture in cheese and cheese products Variables related to oven-drying samples of cheese and cheese products to determine moisture content were examined to provide more efficient and reproducible methods. >> The chemical reaction of water with a Karl Fischer reagent (containing Iodine and Sulphur Dioxide) is monitored with a polarized sensor to determine the water content.
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