Learn the basics about sampling techniques as a part of chemical calculations. SUBSCRIBE to the Fuse School YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform at www.fuseschool.org This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind The Fuse School. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Friend us: http://www.facebook.com/fuseschool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: [email protected]
Views: 8706 FuseSchool - Global Education
The principles of food sampling for official food analysis. More resources at www.food.gov.uk/enforcement/monitoring/samplingresources
Views: 10719 FoodStandardsAgency
Get access to practice questions, written summaries, and homework help on our website! http://wwww.simplelearningpro.com Follow us on Instagram http://www.instagram.com/simplelearningpro Like us on Facebook http://www.facebook.com/simplelearningpro Follow us on Twitter http://www.twitter.com/simplelearningp If you found this video helpful, please subscribe, share it with your friends and give this video a thumbs up!
Views: 319243 Simple Learning Pro
Video [BTSF Training session on "Sampling and analysis methods used in the context of official food and feed controls" -- October 2012 - Valencia/Spain]
Views: 757 ainiatecnologia
http://abcr.com/ - The dos and don'ts of how to collect samples for environmental swab testing. Be sure annotations are on so you can skip to the appropriate sampling type you wish to view. ABC Research Laboratories food testing expert Ivy Cho explains everything you need to know about environmental sampling from prep to shipping. Video Contents Introduction and Swabbing Overview: 00:18 Pre-swabbing Preparation (VERY IMPORTANT): 01:09 Wet Sponge: 02:10 Sponge on a Stick: 05:55 Dry Swab: 08:50 Wet Swab: 10:32 Carcass Swabbing Kit: 11:56
Views: 47307 ABC Research Laboratories
This video shows a brief overview of the more simple methods that students, teachers, scientists, and kids can use to look at Microplastics in the marine environment. This video will show how to use plankton filters in combinations with non-fluorescing PVC piping to fractionate micro plastic from suspension samples. This video also includes the method of density seperations using a concentrated NaCl solution to separate the Microplastic from sediment samples.
Views: 14304 Damien Beri
Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates Today we’re going to demonstrate the dry sieving test method used to determine the particle size distribution of fine and coarse aggregates in accordance with ASTM C136, where a sample of dry aggregate of known mass is separated through a series of sieves with progressively smaller openings to determine the particle size distribution of the test sample. The Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates is used primarily to (1) determine the grading of materials proposed for use as aggregates or being used as aggregates, and to (2) determine the compliance of the particle size distribution where applicable specifications are required, and to (3) provide necessary data for quality control of the production of various aggregate products and mixtures containing aggregates. Devices required for this test method are: a balance or scale used in testing of fine and coarse aggregate with a readability of 0.1 g for fine aggregate, and 0.5 g for coarse aggregate, or mixtures of fine and coarse aggregate; Test sieves that conform to ASTM E11 specifications; A mechanical sieving device to create motion of the particles to bounce, tumble, or otherwise turn so as to present different orientations to the sieving surface; An oven of appropriate size capable of maintaining a uniform temperature of 110 +/- 5 °C (230 +/- 9 °F); A sieve brush; a sample container or pan; a sieve pan; a sieve stack cover; and a way to record and analysis your test finding. Sieving Procedure The procedure for Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates, we first dry the test sample in an oven at a constant temperature of 110 +/- 5 °C (230 +/- 9 °F). For this demonstration we’re using a Gilson BO-350 Quincy Bench Oven. Now, measure on a balance or scale the tare weight or unladen weight of your sample container or pan. Now place the test sample into the sample container and measure its gross weight. Next, select test sieves with suitable openings to furnish enough information required by the specifications covering the material being tested. Nest the sieves in order of decreasing size of opening from top to bottom. Today we’re using Gilson 8in ASTM E11 stainless steel compliance grade test sieves. Place the sieve stack on to a sieve pan. Now place the test sample into the top sieve and then cap the sieve stack with a sieve cover. Agitate the sieves by means of a mechanical sieving apparatus for a sufficient period of time so that not-more-than 1% by mass of the material retained on any individual sieve will pass that sieve during 1 minute of continuous sieving. For this demonstration we are using the Gilson SS-15 mechanical Sieve Shaker. The SS-15 delivers superior accuracy and repeatability for particle separations for No. 4 to No. 200 size ranges by combining a back and forth lateral motion with an up and down tilting motion which causes test material to travel in an orbit on sieve surfaces. Once sieving has completed its course, measure and record the mass weight of each sample size increment on a scale or balance to the nearest 0.1 gram. Repeat this process for each sieve and the sieve pan. The total mass of the sieved sample should match closely with original mass of test sample before sieving. If the amounts differ by more than 0.3%, based on the original dry sample mass, the results should not be used, and the test should be repeated. In recording the mass of each sample size and determining the gross test sample mass you should include the total percentage of material passing each sieve, and/or the mass of material retained on each test sieve and pan, and/or the percentage of material retained between consecutive sieves (Report percentages to the nearest whole number, except if the percentage passing the 75-μm (No. 200) sieve is less than 10 %, it shall be reported to the nearest 0.1 %) For more information go to https://www.globalgilson.com/sieve-analysis-of-coarse-aggregate-from-the-field-to-the-lab-part-3 sieve analysis of coarse aggregate lab report / sieve analysis test procedure / sieve analysis pdf / sieve analysis conclusion / sieve analysis lab report / sieve analysis lab report pdf / sieve analysis graph / importance of sieve analysis / sieve analysis test pdf / sieve analysis of fine aggregate / sieve analysis of fine and coarse aggregates / sieve analysis / sieve analysis test of soil / sieve analysis of coarse aggregate / sieving / sieve analysis calculation / sieve analysis test / sieve analysis of fine and coarse aggregates graph / /sieve shaker / agradation test of aggregate
Views: 18590 Gilson Company Inc.
This sample preparation video is a series of proximate analysis videos created by the Analytical Services Laboratory of the Robert M. Kerr Food & Agricultural Products Center. Sample preparation includes specific procedures performed to prepare a sample suitable for analysis. The validity of a chemical analysis depends largely on these procedures
Views: 13980 fapcosu
The main types of probability sampling methods are simple random sampling, stratified sampling, cluster sampling, multistage sampling, and systematic random sampling. The key benefit of probability sampling methods is that they guarantee that the sample chosen is representative of the population
Views: 151123 Manager Sahab
GHP provides Microbiological, Chemical, Physical, Environmental and Calibration testing through a state of art laboratory. The microbiological, chemical, physical, environmental and calibration laboratory offer a wide range of test and expertise. To learn more please contact GHP Food Testing & Calibration Lab. http://www.ghpgroupme.com/Microbiological-Chemical-Physical-Environmental-and-Calibration-Laboratory * Microbiology * Water Microbiology * Individual Analyses * Shelf-life Studies * Chemical Analysis * Nutritional Analysis & Labeling
Views: 21027 GHPGroup
Water is essential for life, but for many people the quality of water available may be poor. Analysis of a water supply may be required to find out whether the water is safe to drink or whether it needs to be treated before consumption. Methods of analysing the quality of water are discussed in other films in this series. It is just as important, however, to ensure that the samples of water tested are representative of the water supply as a whole. Water sampling is therefore as important an activity as the process of water analysis and is the subject of this film.
Views: 19911 WEDC Publications
In mycotoxin analysis, the reliability of a test result depends not only on the test system used. Representative sampling and appropriate sample preparation have a much greater influence. Learn more: https://food.r-biopharm.com/news/sampling-the-key-to-reliable-analysis/
Views: 163 R-Biopharm AG
Sampling Techniques Population and Sample Advanced Analytical Techniques
Views: 744 Online Lectures In Hindi - Urdu
See http://soilweb.landfood.ubc.ca/labmodules Sample preparation and storage depend on the type of samples and the desired analysis. It is best to always check with the laboratory technicians who will be doing the sample analysis to find out what is required in terms of sample processing, transport, and storage. Preparation of air-dried, less than 2 mm samples is standard for many nutrient analysis. Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Views: 22327 Virtual Soil Science Learning Resources
This percent moisture video is a series of proximate analysis videos created by the Analytical Services Laboratory of the Robert M. Kerr Food & Agricultural Products Center. Percent moisture or loss on drying is a method to determine the moisture content of a sample by drying it in an oven.
Views: 30876 fapcosu
This video covers two-class and three-class sampling and how those sampling techniques can be used in acceptance sampling. This video is part of a fully online course on food quality management, FS 575, that is taught at the University of Idaho. If you are interested in taking the course, you can enroll as a non-degree-seeking student at the University of Idaho to take the course. See https://www.uidaho.edu/admissions/apply/other-applicants/non-degree for instructions on how to enroll as a non-degree-seeking student. Once you are enrolled at University of Idaho, you can enroll in FS 575. You will need instructor permission to enroll. Please contact me at hjoyner (at symbol) uidaho (dot) edu for permission. The course is taught online each fall semester, which is generally mid-August to mid-December. The syllabus for FS 575 is available at http://sfs.wsu.edu/current-students/graduate-courses/
Views: 2092 Helen Joyner
Spanish language version: https://www.youtube.com/watch?v=Rc5zHs6jChk&index=1&list=PLh0k4GzppsqG0iA3QYYZzO2u1KiwLq3mO “E. coli Sampling for Beef Carcasses” is an instructional video targeted for meat plant employees and is designed to discuss standard procedures for the testing of beef carcasses for Escherichia coli Biotype I, also known as generic E. coli. These testing procedures are required for all Federal and State Inspected meat establishments that slaughter beef as the primary slaughter specie. The video addresses supplies needed for testing, preparation for sampling, correct sampling procedures, shipping instructions for samples, and introduces evaluation of testing results. The video is designed to train and update plant employees on testing procedures.
Views: 9099 University of Nebraska–Lincoln
Updated QuEChERS video with sample prep scientist Joni Stevens and senior scientist Ron Majors of Agilent Technologies (2011)— the most important fundamentals of the QuEChERS method are explored and explained. For more information http://www.agilent.com/en-us/products/sample-preparation
Views: 10389 Agilent Technologies
Biology Professor (Twitter: @DrWhitneyHolden) takes viewers through the steps required to conduct the Most Probable Number (or MPN) method to count bacteria in dilute samples (like coliform contamination in food or water samples). A description of how to use a standard reference table to determine and interpret the most probably number of bacteria in a sample as well as the MPN range with 95% confidence.
Views: 17815 Biology Professor
As part of the Royal Society of Chemistry IYC Challenge this video tutorial detailing the stages undertaken when completing an analysis of a soil sample was commissioned by the Atomic Spectroscopy Group.
Views: 4470 Royal Society Of Chemistry
The American Society of Brewing Chemists (ASBC) and Brewers Association (BA) are collaborating to produce a series of videos that demonstrate fundamental methods related to brewing microbiology. Aseptic sampling technique is an essential skill for attaining a sample from a tank or process point that is representative of the beer or wort to be evaluated. This video demonstrates the ASBC Methods of Analysis aseptic sampling technique, applied to wort stability testing.
Views: 8301 Brewers Association
Nicole Gentile, PhD Candidate, provides an overview of basic microbiology and the concepts involved, including the bacterial growth curve and classifying organisms based on morphologies. This lecture describes blood, urine and skin/soft tissue cultures, focusing on the types of media, sample collection processes, culture procedures, as well as speciation and susceptibility testing. Basic staining procedures, such as the simple stain, gram stain, spore stain, negative stain, and acid fast stain are briefly discussed. Included in the staining procedure descriptions are explanations of the organisms that the stains identify. In addition to staining procedures, biochemical tests used for differentiating bacteria are covered. Concluding the lecture are some facts about fungi and viruses, focusing on the current 2009 novel H1N1 influenza pandemic.
Views: 897514 POCTCTR
Demonstration video showing how to perform a serial dilution on a liquid food sample (in this case raw unpasteurised milk). The raw milk sample is diluted down to 1/1000 in a sterile diluent (Ringers solution). 1ml samples of each dilution are then used to prepare 2 sets of pour plates. A 0.1ml sample from the 1/10 and the 1/100 dilutions is used to generate spread plates. For this method you require the following: Sterile 1ml pipettes A pipette pump Sterile agar plates (for pour plates) Poured agar plates (for spread plates) A spreader (glass or metal) A dish of lab ethanol Bunsen burner Glass Universal tubes with 9 ml of sterile diluent Molten agar medium (20ml plate count agar per Universal tube - kept at 48C until ready to pour)
Views: 150040 Microbiology NUI Galway
TMH1 method A1
Views: 35900 Kuhle Zatu
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Views: 102835 Last moment tuitions