Of Other Accident Examples
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Oil Analysis Handbook Third Edition Copyright © 2017 Spectro Scientific
Predictive Equipment Maintenance Oil Analysis Handbook Third Edition Copyright © 2017 Spectro Scientific. All rights reserved. FluidScan® and LaserNet Fines® are registered trademarks of Spectro Scientific Inc. While every effort is made to assure the information in this document ois accurate, Spectro Scientific does not accept liability for any errors or mistakes that may arise. Specifications are subject to change without notice. | 3 Preface Welcome to the third edition of the In-service Oil Analysis Handbook. It has been a few years since the publication of the first edition of Spectro Scientific’s In-Service Oil Analysis Handbook. Our original goal was to compile a comprehensive reference book of common in-service oil analysis techniques to help readers understand and choose the right technique and instrumentation for their needs. We had to limit the scope in the first two editions because of the amount of effort needed to cover all the topics. In-service oil analysis for condition based maintenance covers a wide array of topics. I am pleased to say that in this third edition, we are much closer to our goal. We reorganized the structure of the content for better clarity and we added articles to cover more topics and instruments associated with oil analysis. Also, we rewrote several articles including the latest developments on the market. As we learned more from our customers about their successes using on site oil analysis, we developed case studies that you can find in this edition. This work is not possible without the time and effort from the contributing authors: Patrick Henning, Daniel Walsh, Robert Yurko, Ken Caldwell, Thomas Barraclough, Maria Bartus, Randi Price, John Morgan, Aifeng Shi and Yuegang Zhao from Spectro Scientific and Ray Garvey from Emerson Process Management. -
Experiment 5: Molar Volume of a Gas (Mg + Hcl)
1 CHEM 30A EXPERIMENT 5: MOLAR VOLUME OF A GAS (MG + HCL) Learning Outcomes Upon completion of this lab, the student will be able to: 1) Demonstrate a single replacement reaction. 2) Calculate the molar volume of a gas at STP using experimental data. 3) Calculate the molar mass of a metal using experimental data. Introduction Metals that are above hydrogen in the activity series will displace hydrogen from an acid and produce hydrogen gas. Magnesium is an example of a metal that is more active than hydrogen in the activity series. The reaction between magnesium metal and aqueous hydrochloric acid is an example of a single replacement reaction (a type of redox reaction). The chemical equation for this reaction is shown below: Mg(s) + 2HCl(aq) è MgCl2(aq) + H2(g) Equation 1 When the reaction between the metal and the acid is conducted in a eudiometer, the volume of the hydrogen gas produced can be easily determined. In the experiment described below magnesium metal will be reacted with an excess of hydrochloric acid and the volume of hydrogen gas produced at the experimental conditions will be determined. According to Avogadro’s law, the volume of one mole of any gas at Standard Temperature and Pressure (STP = 273 K and 1 atm) is 22.4 L. Two important Gas Laws are required in order to convert the experimentally determined volume of hydrogen gas to that at STP. 1. Dalton’s law of partial pressures. 2. Combined gas law. Dalton’s Law of Partial Pressures According to Dalton’s law of partial pressures in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the individual gases. -
Department of Education and Science of Ukraine National University of Food Technologies
DEPARTMENT OF EDUCATION AND SCIENCE OF UKRAINE NATIONAL UNIVERSITY OF FOOD TECHNOLOGIES APPROVED _______________A.I. Ukrainets (signature) «_____» ___________2016 y. V.N. ISCHENKO М.S. SОVКО N.V. ISCHENKO EQUIPMENT AND SAFETY IN CHEMICAL LABORATORY All quotations, digital and actual material, bibliographical information are checked. Writing units respond to the standards Signature (s) of the author (s) _____________________ « _17 » __May__2016 y. Registration number of electronic textbook in EMM 59. 04 – 07. 06. 2016 KIEV NUFT 2016 UDC 542.07 Recommended by the Academic Council of the National University of Food Technologies as learner’s guide for students of higher educational establishments (Minutes № 13 from 31.05. 2016) Reviewers: V.I Maksin – Dr. of Chemistry, Professor of the Department of Bioinorganic Chemistry and Water Quality NUBaN Ukraine O.O. Tkachuck – Ph.D. in Chemistry, the head of the laboratory ofnational anti-doping center of Ukraine O.V. Berezovska – senior lecturer of the Department of Business Foreign Language and International Communication NUFT IschenkoV.N. Equipment and safety in chemical laboratory [Electronic resourse]:learner’s guide /V.N. Ischenko, М.S. Sоvко, N.V. Ischenko. – K.: NUFT, 2016. –27 р. The learner’s guide provides information about modern chemical laboratory equipment. Chemical laboratory ware and equipment necessary for conducting laboratory work are described. The guide provides the rules of behavior and safety in chemical laboratory, rules of work with chemicals Learner’s guide is recommended for students of academic level of bachelor, who study Chemistry in English. Authors: V.N. ISCHENKO, PhD М.S. SОVКО, N.V. ISCHENKO, PhD Introduced in author’s edition © V.N. -
Gas Generator Bottle Introduction SCIENTIFIC This Gas Generator Setup Provides an Easy Way to Generate and Collect Gas
Gas Generator Bottle Introduction SCIENTIFIC This gas generator setup provides an easy way to generate and collect gas. Specific instructions are provided for the generation of hydrogen gas using zinc and acid. Concepts • Generation of gases • Water displacement Materials Hydrochloric acid solution, HCl, 3 M Glass plates or Sulfuric acid solution, H2SO4, 3 M Glass tubing Mossy zinc, Zn, 6 g Pneumatic trough Water, tap Rubber tubing Bent glass tubing* Silicone grease packet* Gas collecting bottles or tubes, 3 or 4 Thistle tube* Gas generator bottle* Two-hole rubber stopper* *Materials included. Safety Precautions Hydrochloric acid solution is toxic by ingestion and inhalation and is severely corrosive to skin, eyes and other tissues, as is sulfuric acid solu- tion. Hydrogen gas is a highly flammable gas and a severe fire hazard. Exercise extreme caution when testing the gas and keep the gas generator away from flames. Wear chemical splash goggles, chemical-resistant gloves, and a chemical-resistant apron. This activity requires the use of hazardous components and/or has the potential for hazardous reactions. Please review current Material Safety Data Sheets for additional safety, handling, and disposal information. Procedure 1. Set up the apparatus as shown in the figure to the right. Lubricate the glass tubing and thistle tube with silicone grease before inserting into the stopper. Make sure Thistle tube the water level is above the platform. Prepare bottles for collecting gas by water Two-hole rubber stopper displacement. To do this, fill each gas collecting bottle (or tube) over the brim with tap water, and then cover each with a flat glass plate. -
22 Bull. Hist. Chem. 8 (1990)
22 Bull. Hist. Chem. 8 (1990) 15 nntn Cn r fr l 4 0 tllOt f th r h npntd nrpt ltd n th brr f th trl St f nnlvn n thr prt nd ntn ntl 1 At 1791 1 frn 7 p 17 AS nntn t h 3 At 179 brr Cpn f hldlph 8Gztt f th Untd Stt Wdnd 3 l 1793 h ntr nnnnt rprdd n W Ml "njn h Cht"Ch 1953 37-77 h pn pr dtd 1 l 179 nd nd b Gr Whntn th frt ptnt d n th Untd Stt S M ntr h rt US tnt" Ar rt Invnt hn 199 6(2 1- 19 ttrfld ttr fnjn h Arn hl- phl St l rntn 1951 pp 7 9 20h drl Gztt 1793 (20 Sptbr Qtd n Ml rfrn 1 1 W Ml rfrn 1 pp 7-75 William D. Williams is Professor of Chemistry at Harding r brt tr University, Searcy, Al? 72143. He collects and studies early American chemistry texts. Wyndham D. Miles. 24 Walker their British cultural heritage. To do this, they turned to the Avenue, Gaithersburg, MD 20877, is winner of the 1971 schools (3). This might explain why the Virginia assembly Dexter Award and is currently in the process of completing the took time in May, 1780 - during a period when their highest second volume of his biographical dictionary. "American priority was the threat of British invasion following the fall of Chemists and Chemical Engineers". Charleston - to charter the establishment of Transylvania Seminary, which would serve as a spearhead of learning in the wilderness (1). -
Determination of Calcium Metal in Calcium Cored Wire
Asian Journal of Chemistry; Vol. 25, No. 17 (2013), 9439-9441 http://dx.doi.org/10.14233/ajchem.2013.15017 Determination of Calcium Metal in Calcium Cored Wire 1,* 1 2 1 1 HUI DONG QIU , MEI HAN , BO ZHAO , GANG XU and WEI XIONG 1Department of Chemistry and Chemical Technology, Chong Qing University of Science and Technology, Chongqing 401331, P.R. China 2Shang Hai Entry-Exit Inspection and Quarantine Bureau, P.R. China *Corresponding author: Tel: +86 23 65023763; E-mail: [email protected] (Received: 24 December 2012; Accepted: 1 October 2013) AJC-14200 The calcium analysis method in cored wire products is mainly measuring the total calcium content, including calcium oxide and calcium carbonate. According to the chemical composition of calcium cored wire and the chemical property of the active calcium in it, the gas volumetric method has been established for the determination of calcium content in calcium cored wire and a set of analysis device is also designed. Sampling in the air directly, intercepting the inner filling material of samples, reacting with water for 10 min, using standard comparison method and then the accurate calcium content can be available. The recovery rate of the experimental method was 93-100 %, the standard deviation is less than 0.4 %. The method is suitable for the determination the calcium in the calcium cored wire and containing active calcium fractions. Key Words: Calcium cored wire, Active calcium, Gas volumetric method. INTRODUCTION various state of the calcium. However, because the sample is heterogeneous and the amount of the sample for instrumental 1-4 The calcium cored wire is used to purify the molten analysis is small, thus such sampling can not estimate charac- steel, modify the form of inclusions, improve the casting and teristics of the whole ones accurately, so there are flaws to use mechanical properties of the steel and also reduce the cost of the instrumental analysis to determine the calcium metal in steel. -
XXIX. on the Magnetic Susceptibilities of Hydrogen and Some Other Gases
Philosophical Magazine Series 6 ISSN: 1941-5982 (Print) 1941-5990 (Online) Journal homepage: http://www.tandfonline.com/loi/tphm17 XXIX. On the magnetic susceptibilities of hydrogen and some other gases Také Soné To cite this article: Také Soné (1920) XXIX. On the magnetic susceptibilities of hydrogen and some other gases , Philosophical Magazine Series 6, 39:231, 305-350, DOI: 10.1080/14786440308636042 To link to this article: http://dx.doi.org/10.1080/14786440308636042 Published online: 08 Apr 2009. Submit your article to this journal Article views: 6 View related articles Citing articles: 16 View citing articles Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=6phm20 Download by: [RMIT University Library] Date: 20 June 2016, At: 12:34 E 3o5 XXIX. On the MAgnetic Susceptibilities of llydrogen uud some otl~er Gases. /33/TAK~; S0~; *. INDEX TO SECTIONS. 1. INTRODUCTION. ~O. METI~OD OF 5LEASUREMENT. o. APPARATUS :FOR }IEASU14EIMF~NT. (a) Magnetic bMance. (b) Compressor and measuring tube. 4. PIt0CEDUI{E :FOR BIEASUREMENTS. (a) Adjustment of the measuring tube. (b) Determination of the mass. (c) Method of filling the measuring tube with gas. (d) Electromagnet. (e} Method of experiments. 5. Ain. 6. OXYGEN. ~. CARBON DIOXIDE. 8. NITROGEN. 9. ItYDI~0G~N. (a) Preparation of pure hydrogen gas. (b) Fillin~ the measuring tube with the gas. (e) YCesults el'magnetic measurement. (d} Purity of the hydrogen gas. 10. CONCLUDING REMARKS. wi. INTRODUCTION. N the electron theory of magnetism, it is assumed that I the magnetism is duo to electrons revolving about the positive nucleus in the atom; and hence the electronic structure of the atom has a very important bearing on its magnetic properties. -
A Study of Form and Content for a Laboratory Manual to Be Used by Students in General Chemistry Laboratory
Brigham Young University BYU ScholarsArchive Theses and Dissertations 1946-01-01 A study of form and content for a laboratory manual to be used by students in general chemistry laboratory Berne P. Broadbent Brigham Young University - Provo Follow this and additional works at: https://scholarsarchive.byu.edu/etd BYU ScholarsArchive Citation Broadbent, Berne P., "A study of form and content for a laboratory manual to be used by students in general chemistry laboratory" (1946). Theses and Dissertations. 8176. https://scholarsarchive.byu.edu/etd/8176 This Thesis is brought to you for free and open access by BYU ScholarsArchive. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. ?_(j;, . , i. ~ ~ (12 ' -8?5: 11% -· • A STUDY OF FOFM CONTENTFOR A LABORATORY -\ .AND MANUALTO BE USED BY STUDENTSIN GENERALCEEi/IISTRY LABORATORY' A THESIS SUBMITTEDTO \ THE DEPAR'.I3\t1Ell."'T OF CHEMISTRY OF ··! BRIGHAMYOUNG UNIVERSITY,. IN PARTIALFULFII.lllENT OF THEREQ,UIREMENTS·FOR THE DEGREE OF MASTEROF SCIENCE ... .,; . •·' .. ...• • .• . • "f ... ·.. .. ,. ·: :. !./:.•:-.:.lo>•.-,:... ... ... ..........• • • • p ,.. .,• • • ...• • . ~. ••,,. ................. :... ~•••,,.c • ..............• • • • • • .. f" ·~•-~-·"••• • • • ... • .., : :·.•··•:'"'•••:'"',. ·.-··.::· 147141 BY BERNEP. BROADBENT . " 1946 .,_ - ii \ ., This Thesis by Berne P.- Broadbent is accepted in 1ts P:esent form by the Departm·ent of Chem�stry as satisfying the Thesis requirement.for the degree of .J Master of Science • ,• . - .} .. iii PREF.ACE The constantly broadening field assigned to general chemistry demands that material be carefully selected and that ever increasing attention be given to preparing this material and presenting it_ to the student.- The following study was made to develop a laboratory manual that would increase the effectiveness of laboratory work. -
CHAPTER 15 the Laboratory
CHAPTER 15 The Laboratory These skills are usually tested on the SAT Subject Test in Chemistry. You should be able to . • Name, identify, and explain proper laboratory rules and procedures. • Identify and explain the proper use of laboratory equipment. • Use laboratory data and observations to make proper interpretations and conclusions. This chapter will review and strengthen these skills. Be sure to do the Practice Exercises at the end of the chapter. Laboratory setups vary from school to school depending on whether the lab is equipped with macro- or microscale equipment. Microlabs use specialized equipment that allows lab work to be done on a much smaller scale. The basic principles are the same as when using full-sized equipment, but microscale equipment lowers the cost of materials, results in less waste, and poses less danger. The examples in this book are of macroscale experiments. Along with learning to use microscale equipment, most labs require a student to learn how to use technological tools to assist in experiments. The most common are: Gravimetric balance with direct readings to thousandths of a gram instead of a triple-beam balance pH meters that give pH readings directly instead of using indicators Spectrophotometer, which measures the percentage of light transmitted at specific frequencies so that the molarity of a sample can be determined without doing a titration Computer-assisted labs that use probes to take readings, e.g., temperature and pressure, so that programs available for computers can print out a graph of the relationship of readings taken over time LABORATORY SAFETY RULES The Ten Commandments of Lab Safety The following is a summary of rules you should be well aware of in your own chemistry lab. -
K–12 Science Safety Manual
K–12 Science Safety Manual Developed by the Innovative Teaching and Learning Unit Instructional Design and Professional Learning Division K–12 Science Department TABLE OF CONTENTS Importance of Safety 2 General Information 7 Prohibited Practices 9 Emergency Information 10 Safety on Field Trips 15 General Laboratory Safety 20 Elementary Science Safety 22 Biological Science Safety 24 Earth and Space Science Safety 28 Chemistry Science Safety 31 Physics Science Safety 35 Appendix A: Technical Safety Assistance Numbers 49 Appendix B: Safety Survey 50 Appendix C: Lab Inspection Checklist 51 Appendix D: Chemical Storage 55 Appendix E: Waste Disposal 63 Appendix F: Prohibited Chemicals 68 Appendix G: Restricted Chemicals 75 Appendix H: Animals in the Classroom 79 Appendix I: Safety Contracts and Exams 85 Appendix J: Safety Resource Websites 86 Restricted Chemical Request Form 87 Secondary Science Teacher Safety Manual Acknowledgement Form 88 IDPL-SCI-M002, Rev. B September 2009, Rev. C April 2015 0 SPECIAL ACKNOWLEDGMENTS The Clark County School District K–12 Science Safety Manual is a coordinated effort by a team of teachers, administrators, with input from the Southern Nevada Health District. Andy Cheney Environmental Health Supervisor, Southern Nevada Health District Ellen Dunne K–5 Science Project Facilitator, CCSD Instructional Design and Professional Learning Division Eileen Gilligan Elementary Science Coordinator, CCSD Instructional Design and Professional Learning Division Kim Krumland Risk and Environmental Services Department Director, -
Food Protection Trends 2010-09: Vol 30 Iss 9
September 2010 ee Vol. a 30, No. 9 Periodicals 6200 Aurora Avenue ¢ Suite 200W Des Moines, lowa 50322-2864, USA merle Mm manele drele Mm igsalels Science and NewS trom the international Association for Food Protection Inter-agency Public Health Collaboration Pathogens Used with Biltong Product www.foodprotection.org BD |; Microbiology Media Solutions for Food Safety Reduce the risk to consumer safety with BBL Campy- e Over 170 years of combined Difco” and Cefex Agar* prepared plated medium for the isolation, BBL” microbiology experience enumeration and detection of Camplyobacter species directly from poultry. ' Microbiology— It’s what we do e Adopted by the National Advisory Committee on Microbiological Criteria for Foods for the isolation Find out what we can do for you. of Campylobacter species from chicken carcasses! Visit us on the web at www.bd.com/ds ¢ Better selectivity and easier differentiation of C. jejuni from other flora? BD Diagnostics 800.638.8663 *U.S. Patent No. 5,891,709 licensed to Becton, Dickinson and Company www.bd.com/ds 1 aa.) OAS A Food Process Control Microorganisms When the world’s leading food manufacturers need to meet expanding regulatory, liability, and quality assurance challenges they put their trust in Microbiologics. Our food process controls are guaranteed to deliver a specific number of colony forming units. Each easy-to-use microorganism preparation is authentic and traceable to an original reference strain. EZ-FPC™ * Qualitative preparations for Presence/Absence Testing * Quantitative preparations -
Inquiry-Based Laboratory Work in Chemistry
INQUIRY-BASED LABORATORY WORK IN CHEMISTRY TEACHER’S GUIDE Derek Cheung Department of Curriculum and Instruction The Chinese University of Hong Kong Inquiry-based Laboratory Work in Chemistry: Teacher’s Guide / Derek Cheung Copyright © 2006 by Quality Education Fund, Hong Kong All rights reserved. Published by the Department of Curriculum and Instruction, The Chinese University of Hong Kong. No part of this book may be reproduced in any manner whatsoever without written permission, except in the case of use as instructional material in a school by a teacher. Note: The material in this teacher’s guide is for information only. No matter which inquiry-based lab activity teachers choose to try out, they should always conduct risks assessment in advance and highlight safety awareness before the lab begins. While every effort has been made in the preparation of this teacher’s guide to assure its accuracy, the Chinese University of Hong Kong and Quality Education Fund assume no liability resulting from errors or omissions in this teacher’s guide. In no event will the Chinese University of Hong Kong or Quality Education Fund be liable to users for any incidental, consequential or indirect damages resulting from the use of the information contained in the teacher’s guide. ISBN 962-85523-0-9 Printed and bound by Potential Technology and Internet Ltd. Contents Preface iv Teachers’ Concerns about Inquiry-based Laboratory Work 1 Secondary 4 – 5 Guided Inquiries 1. How much sodium bicarbonate is in one effervescent tablet? 4 2. What is the rate of a lightstick reaction? 18 3. Does toothpaste protect teeth? 29 4.