Name: laboratory chemical spill response stations
Uploaded: 2023-04-30T06:57:05.000Z
Duration: 5 min 3 s
Channel: JoVE

K12 Standards

Texas Essential Knowledge and Skills

High School

Specialised Topic in Science

112.51.c.1.

112.51.c.1.C.

Emergency Eyewash and Shower Stations

1. douche oculaire <ol>utilise <ol><li>les stations de lavage oculaire d’urgence utilisent de l’eau à des matériaux RAS préjudiciables ou corrosifs des yeux en cas d’accident</li></ol> <li>fiche <ol><li>la douche d’urgence oculaire doit être Situé à moins de 10 secondes temps de marche à l’emplacement où la contamination de le œil peut se produire. Il ne devrait y avoir aucun obstacle bloquant le chemin d’accès à la douche oculaire, y compris mais non limité aux portes. La douche oculaire doit également se trouver sur le même étage que la zone contenant le danger.</li>
		<li>La station de lavage oculaire d’urgence nécessite de l’eau potable comme sa source d’eau.</li>
		<li>La température de l’eau de la douche oculaire doit être maintenue entre 60 ° et 100 ° F (16 ° C et 38 ° C).</li>
		<li>L’eau doit être en mesure de maintenir un débit d’au moins 0,4 gallons par minute pendant au moins 15 minutes, avec une vitesse de débit assez bas pour éviter d’endommager les yeux de l’utilisateur.</li>
		<li>La douche oculaire doit pouvoir être ouvert manuellement dans la seconde, et l’eau devrait pouvoir rester fluide jusqu'à ce qu’elle est désactivée par l’utilisateur.</li>
	</ol></li> <li>Entretien <ol><li>stations de lavage oculaire doivent être inspectés chaque année par un agent de sécurité et de santé de l’environnement.</li>
		<li>Personnel de laboratoire doit inspecter la station de lavage oculaire d’urgence toutes les semaines, l’eau courante pendant 3 minutes, pour assurer le bon état de fonctionnement et d’éliminer l’accumulation de la sédimentation dans la douche oculaire. Il convient de maintenir un journal de bord documentant les inspections hebdomadaires.</li>
	</ol></li> <li>Opération les étapes suivantes devraient servir à exploiter la douche d’urgence oculaire en cas d’urgence : <ol><li>aller immédiatement à l’oculaire dans le cas de l’exposition aux produits chimique nocif pour les yeux. Aucun le temps ne devrait être gaspillé en obtenant à la douche oculaire, car les premières secondes d’exposition pourraient provoquer des dommages irréversibles aux yeux.</li>
		<li>Pousser le levier de l’oculaire pour amorcer l’écoulement de l’eau.</li>
		<li>Tenir les yeux contaminés ouvrir avec les doigts et plonger les yeux dans le flux de l’eau pendant au moins 15 minutes. Rouler les yeux autour pour assurer une vidange complète de la zone des yeux tout.</li>
		<li>Si les contacts sont usés, ne cessez pas de les enlever avant le rinçage des yeux avec de l’eau. Supprimer des contacts au lieu de cela, alors que les yeux sont rincer avec de l’eau.</li>
		<li>Chercher l’attention médicale.</li>
	</ol></li></ol> 2. Douche de Lab <ol><li>utilise <ol><li>d’urgence douche stations utilisent l’eau pour rincer le matériel préjudiciable ou corrosifs du corps dans le cas d’un déversement accidentel de produits chimique.</li>
	</ol></li> <li>Fiche <ol><li>la douche d’urgence doit être située à moins de 10 s, temps de marche à l’emplacement où la contamination du corps se produit. Il ne devrait y avoir aucun obstacle bloquant le chemin vers la douche, y compris mais non limité aux portes. La douche doit également se trouver sur le même étage que la zone contenant le danger potentiel.</li>
		<li>La source d’eau de la douche doit être de l’eau potable.</li>
		<li>La température de l’eau doit être maintenue entre 60 ° et 100 ° F (16 ° C et 38 ° C).</li>
		<li>L’eau doit être en mesure de maintenir un débit d’au moins 20 gallons / minute pendant au moins 15 minutes.</li>
		<li>La douche devrait pouvoir être allumé dans une seconde au maximum et rester sur jusqu'à ce que l’utilisateur s’il OFF.</li>
		<li>La hauteur de la colonne d’eau de douche doit être comprise entre 82 pouces et 96 po.</li>
		<li>Le diamètre de la colonne d’eau devrait être au moins de 20 pouces à 60 pouces au-dessus du sol.</li>
		<li>Un enclos pour la douche doit être au moins de 34 pouces de diamètre. Pièces jointes ne sont pas tenus sur les douches d’urgence laboratoire.</li>
	</ol></li> <li>Entretien <ol><li>stations de douche doivent être inspectés chaque année par votre organisation &#39; agent de sécurité et de santé de l’environnement s.</li>
		<li>Laboratoire personnel devrait inspecter la station douche d’urgence chaque semaine afin d’assurer de bonnes conditions de travail. Il convient de maintenir un journal de bord documentant les inspections hebdomadaires.</li>
	</ol></li> <li>Opération les étapes suivantes devraient servir à exploiter la station de la douche d’urgence en cas d’urgence : <ol><li>aller immédiatement au poste de douche dans le cas de l’exposition aux produits chimique nocif pour l’organisme. Aucun le temps ne devrait être gaspillé en obtenant à la douche car les premières secondes d’exposition pourraient provoquer des dommages irréversibles.</li>
		<li>Enlever les vêtements contaminés, chaussures, ou tout autre vêtement. Ne soyez pas timide sur la suppression des vêtements. Si l’emplacement principal des produits chimiques déversés est une partie vêtue du corps, ils seront saturés avec des produits chimiques. Enlever les vêtements soigneusement si ils viendront en contact avec les zones non exposées du corps. Dans certains cas, il peut être préférable de couper les vêtements pour l’enlèvement rapide et plus sûr.</li>
		<li>Tirer le levier de la douche pour amorcer l’écoulement de l’eau et rincer la zone affectée avec de l’eau pendant au moins 15 minutes.</li>
		<li>Chercher l’attention médicale.</li>
	</ol></li></ol>

dans le cas d’un déversement de produits chimiques ou splash affectant le corps ou les yeux, l’individu contaminé ne devrait perdre aucun temps accéder à une station de lavage oculaire ou d’une douche d’urgence. Si la personne exposée est incertain des dangers du déversement de produits chimiques, il est toujours conseillé d’utiliser la douche oculaire ou la douche. Toutefois, afin d’empêcher de tels accidents, vêtements de laboratoire approprié doit toujours être portée lors de la manipulation de substances dangereuses...

rince-oeil et douches de sécurité

Robert M. Rioux, Pennsylvania State University, University Park, PA
 the Occupational Safety and Health Administration (OSHA) des mandats qu’une station de lavage oculaire et douche d’urgence facilement accessible dans tous les lieux de travail dans lequel une personne pourrait être exposée à des substances nuisibles et/ou corrosives. Stations de lavage oculaire et douche d’urgence doivent être utilisées dans le cas d’un accident de laboratoire ou milieu de travail qui implique le déversement d’un produit nocif, corrosif éventuellement chimique sur le corps ou le clapotis d’une telle substance dans les yeux. Stations de lavage oculaire et la douche ne sont pas, cependant, un remplacement pour un équipement de protection (EPI), y compris des sarraus et des lunettes de protection, qui doivent toujours être portée lors de la manipulation de produits chimiques dangereux. Pour une sélection adéquate des EPI, reportez-vous à votre organisation &#39; s Environmental Health &#38; Bureau de la sécurité (EHS).

Rince-oeil et douches de sécurité

Robert M. Rioux, Pennsylvania State University, University Park, PA
The Occupational Safety and Health Administration (OSHA) mandates that an emergency ...

Tous les laboratoires et lieux de travail où des produits chimiques dangereux sont présents seront équipés d’une douche oculaire et d’une douche d’urgence. La douche oculaire et la douche d’urgence sont utilisées pour éliminer les produits chimiques nocifs ou corrosifs qui entrent en contact avec les yeux et la peau, respectivement. Cette vidéo montrera l’utilisation et l’entretien appropriés de la douche oculaire et de la douche d’urgence et discutera des mesures de sécurité connexes. Avant de manipuler des produits chimiques, reportez-vous à leurs fiches de données de sécurité pour vous familiariser avec les dangers associés à l’exposition. Informer le gestionnaire du laboratoire et le Bureau de l’hygiène et de la sécurité au travail du matériel et des procédures utilisés. Pour réduire le risque d’exposition aux produits chimiques, portez des vêtements de protection, tels que des blouses de laboratoire, des lunettes de protection et des gants. Manipulez des produits chimiques dangereux sous les hottes pour réduire davantage le risque d’inhalation. Les douches oculaires d’urgence utilisent de l’eau pour évacuer les matières dangereuses ou corrosives des yeux en cas d’exposition. Avant de travailler avec des produits chimiques dangereux, assurez-vous qu’il n’y a pas d’obstacles, d’escaliers ou de portes entre l’espace de travail et la douchette oculaire. Installez l’espace de travail au même étage, de sorte que la douche oculaire soit accessible en moins de 10 s.En cas d’exposition à une substance nocive ou inconnue, rendez-vous immédiatement à la douche. Le temps est critique, car les dommages les plus importants ont tendance à se produire dans les premières secondes de l’exposition. Ne vous arrêtez pas pour nettoyer les déversements ou retirer les lentilles de contact. Activez le levier de la douche oculaire. Cela déclenche l’écoulement de l’eau. Enfin, tout en gardant les paupières ouvertes, immergez les yeux dans le ruisseau. Roulez-les pour permettre un rinçage complet. Retirez les lentilles de contact pendant que les yeux sont rincés. Lavez pendant au moins 15 min, puis consultez un médecin. Les douches d’urgence éliminent les matières dangereuses ou corrosives de la peau. Comme dans le cas de la douche oculaire, le chemin de l’espace de travail à la douche doit être exempt d’obstacles, de portes ou d’escaliers. Il ne devrait pas falloir plus de 10 s pour se rendre de l’espace de travail à la douche. Si la peau est exposée à une substance nocive ou inconnue, allez immédiatement à la douche. Encore une fois, les dommages les plus importants causés par la contamination ont tendance à se produire dans les premières secondes de l’exposition. Ne vous arrêtez pas pour nettoyer les déversements. Retirez rapidement tous les vêtements, chaussures ou autres vêtements contaminés. N’hésitez pas ou ne vous sentez pas timide, les vêtements peuvent retenir les composés contre la peau, causant d’autres dommages. Veillez à ce que les vêtements contaminés n’entrent pas en contact avec des parties non exposées de votre corps. Si nécessaire, coupez les vêtements.Enfin, tirez sur le levier de la douche pour démarrer l’écoulement de l’eau. Cela déclenche l’écoulement de l’eau. Rincez la zone touchée pendant au moins 15 minutes, puis consultez un médecin. Pour assurer un fonctionnement en toute sécurité, la douche oculaire et la douche doivent respecter les spécifications suivantes. Les deux utilisent de l’eau potable à 60 à 100 degrés Fahrenheit. Les deux doivent prendre au plus 1 s pour s’allumer et doivent rester fluides jusqu’à ce que l’utilisateur les éteigne. La douche oculaire doit maintenir un débit de 0,4 gallons par minute pendant au moins 15 min, et la douche, 20 gallons par minute pendant au moins 15 min.La douche doit produire une colonne d’eau entre 82 et 96 pouces de hauteur avec un diamètre d’au moins 20 pouces à une hauteur de 60 pouces. Si la douche est équipée d’une enceinte, celle-ci doit avoir un diamètre d’au moins 34 pouces. La douche oculaire et la douche doivent être inspectées par des techniciens de laboratoire chaque semaine, en les faisant fonctionner pendant 3 minutes et en conservant les résultats dans un journal de bord. De plus, il devrait être inspecté chaque année par un agent d’hygiène et de sécurité au milieu. Vous venez de regarder l’introduction de JoVE aux douches oculaires et aux douches d’urgence. Vous devez maintenant comprendre les mesures de sécurité pertinentes, les procédures d’utilisation de la douche oculaire et de la douche, ainsi que leurs spécifications et leur entretien corrects. Merci d’avoir regardé !

Education

Enseignement

JoVE Science Education

Basic Biology

Biologie fondamentale

Lab Safety

Sécurité au laboratoire

laboratory chemical spill response stations

Laboratory chemical spill response stations help protect people who are exposed to injurious or corrosive substances. In workplaces and school labs, OSHA requires emergency eyewash and shower stations to be easy to reach when these hazards are present.

These stations are used after an accident that spills a harmful chemical on the body or splashes it into the eyes. The eyewash station helps rinse the eyes, while the shower station is used for chemicals on the skin or clothing. They are meant for emergency cleanup after exposure, not for routine washing.

Emergency stations do not replace proper personal protective equipment, or PPE. Laboratory coats and protective eyewear should still be worn when handling hazardous chemicals. For help choosing the right PPE, students and staff should follow guidance from their organization’s Environmental Health and Safety, or EHS, office.

Laboratory Chemical Spill Response Stations

laboratory-chemical-spill-response-stations

proper personal protective equipment

Choosing the Right Lab PPE

Choosing the right lab PPE is a key part of working safely in a laboratory. PPE, or personal protective equipment, helps reduce risk when hazards are present. Laboratory hazards can be many and varied. The right choice of PPE helps make the lab a safe place to work. Students should match their protective gear to the tasks and conditions in the lab. This topic focuses on selecting proper protection for the situation at hand. Wearing the correct PPE supports safer lab work and helps limit...

emergency eyewash and shower stations

Laboratory chemical spill response stations help protect people who are exposed to injurious or corrosive substances. In workplaces and school labs, OSHA requires emergency eyewash and shower stations to be easy to reach when these hazards are present. These stations are used after an accident that spills a harmful chemical on the body or splashes it into the eyes. The eyewash station helps rinse the eyes, while the shower station is used for chemicals on the skin or clothing. They are meant...

electrical safety

Preventing Lab Electric Shock and Fires

Electrical hazards are a common lab safety concern. Most laboratory equipment uses electricity to work, so students and lab staff must stay alert around cords, plugs, and powered devices. Improper use of electrical equipment can cause electric shock. In serious cases, this can lead to injury or death. Electrical sparks are also dangerous in the lab. They can start a fire or trigger an explosion. This risk matters because many flammable chemicals may be stored near powered instruments. Knowing...

working with centrifuges

Centrifuge Safety and Sample Separation

Centrifuges are used to separate heterogeneous mixtures by spinning particles in a fluid at high speed. The motion creates a force away from the axis of rotation. Heavier particles move faster toward the bottom of the sample holder, and the rate depends on particle size and density. This process is called centrifugation, and it speeds up sedimentation, which is the settling of particles out of a liquid. Gravity can separate some mixtures on its own, but that can take a long time.

working with hot and cold sources

Safe Use of Lab Heat and Cold Sources

Safe use of lab heat and cold sources is an important part of laboratory work. Extreme temperatures are common in many lab tasks. They can involve both high heat and very low temperatures. Bunsen burners and hot plates are widely used in research labs and industry. A Bunsen burner is a gas burner that gives a direct flame. A hot plate is an electric device that warms containers without an open flame. Because these tools reach high temperatures, users need to follow safe handling procedures. <br...

guidelines in case of a laboratory emergency

guidelines-in-case-of-a-laboratory-emergency

Lab Spill and Accident Response Basics

Lab spill and accident response basics help students stay safe during common laboratory emergencies. The most common lab emergencies include chemical spills, fire or explosion, electric shock, and personnel injuries. Many accidents happen because of poor planning or lack of attention, so prevention is always the first step. Good lab safety starts before an emergency happens. Students should wear proper personal protective equipment, or PPE, in the laboratory. Regular lab inspection and...

chemical storage: categories, hazards and compatibilities

chemical-storage-categories-hazards-and-compatibilities

Safe Chemical Labels and Storage Basics

Safe chemical storage and labeling help prevent dangerous reactions in school and research labs. Chemicals can vary widely in their properties and reactivity, so they must be managed, stored, and labeled correctly as part of an Environmental, Health and Safety (EHS) program. If chemicals are not handled properly, they can create harmful or even destructive results. These risks include toxic fume production, fire, explosion, human fatality, property damage, and environmental hazards. Proper...

safe handling of mineral acids

Mineral Acids in the Lab

Mineral acids are common chemicals in research laboratories, and they must be handled with care. These acids, also called inorganic acids, are water-soluble acids formed from inorganic minerals by chemical reaction. Their corrosive nature makes them a major safety risk in the lab. Examples of mineral acids include boric acid, chromic acid, hydrochloric acid, hydrofluoric acid, nitric acid, perchloric acid, phosphoric acid, and sulfuric acid. These acids are important reagents in research, and...

handling chemical spills

Chemical Spill Safety in the Lab

Chemical spill safety in the lab is essential whenever hazardous chemicals are used. Spills can happen at any time during laboratory work. Even a small spill can become dangerous if people are not prepared to respond quickly and correctly. Preparing for a chemical spill helps protect public health and the environment. Lab teams need to know how to respond to accidental releases of hazardous chemicals before an emergency happens. Safe cleanup also depends on proper disposal of the spilled...

proper use of autoclaves

Autoclaving Lab Materials Safely

Autoclaving lab materials safely is an important part of decontamination in the laboratory. This method is commonly used for items that have contacted biological samples, especially those that may contain microorganisms. An autoclave cleans materials with pressurized steam at a high temperature. The steam and heat work together to kill microorganisms on the loaded items. For this reason, effective autoclaving depends on good steam flow and strong heat transfer. Packaging matters because it...

fume hoods and laminar flow cabinets

Airflow Controls for Safer Lab Workspaces

Fume hoods and laminar flow cabinets are airflow controls used in laboratories. They both rely on a constant stream of air to protect the lab environment and the people in it. These systems work in similar ways, but they serve different purposes. A fume hood is a ventilation system that helps reduce exposure to hazardous vapors, fumes, and particles. Air is drawn into the hood opening, which helps keep harmful substances inside the workspace. The air is then pulled out through the exhaust. A...

handling air- and water-sensitive chemicals using a schlenk line

handling-air-and-water-sensitive-chemicals-using-a-schlenk-line

Schlenk Line Setup for Inert Atmospheres

A Schlenk line helps chemists work with air- and water-sensitive chemicals. It provides an air-free way to handle reagents that can react with oxygen or moisture. This makes it useful in a chemical laboratory when careful control of the atmosphere is needed. The glass apparatus is commonly used because it can create an inert gas environment or a vacuum. Inert gases such as nitrogen and argon can be used to protect the reaction. The same setup can also expose glassware to vacuum when needed. A...

proper operation of vacuum based equipment

proper-operation-of-vacuum-based-equipment

Vacuum Pumps for Laboratory Procedures

Vacuum pumps are used in many laboratory procedures that need low pressure. They help create vacuum conditions for experiments and equipment that must run below normal atmospheric pressure. In the lab, vacuum pumps are the most common way to achieve this low-pressure environment. They can also support rapid changes in the atmosphere inside a reactor or flask. This is done by evacuating the vessel and then backfilling it with another gas.

operating the glovebox

Glovebox Atmosphere and Sample Transfer

A glovebox is an enclosed workspace that keeps an inert atmosphere inside. Scientists use built-in gloves to handle chemicals or equipment without exposing the inside of the box to outside air. The box uses positive pressure to help make up for small passive leaks. Objects can be moved in and out through an antechamber, which works like an airlock between the glovebox and the outside atmosphere. Some gloveboxes have more than one pair of gloves. The number of glove ports depends on the size...

operation of high-pressure reactor vessels

operation-of-high-pressure-reactor-vessels

Safe Use of Pressure Vessels in Chemistry

High-pressure reactor vessels are used in synthetic chemistry to handle gases safely during reactions. They help chemists carry out gas-based processes such as hydrogenation, oxidation, and amination. These reactions often use hydrogen, oxygen, or ammonia, which are important reagents in the lab. These gases usually dissolve poorly in standard reaction mixtures. Because of that, high pressure is needed to make the reaction proceed at a useful rate. The vessel creates a sealed space that keeps...

decontamination for laboratory biosafety

Lab Cleaning Methods for Biosafety

Laboratory cleaning methods are a key part of biosafety because microbial contamination can build up and spread disease. Decontamination is used to reduce that risk on lab surfaces and equipment. The level of cleaning depends on how much contamination is present and what kind of item needs treatment. Decontamination can be grouped into disinfection and sterilization. Disinfection removes pathogenic microorganisms, but it does not remove bacterial spores on lab surfaces or equipment.

proper waste disposal

Lab Waste Management and Safety

Lab waste management and safety are essential parts of any laboratory activity. Waste generated during work must be handled correctly from the moment it is created until it reaches its final offsite disposal facility. Poor waste disposal can seriously harm public health and the environment. A waste management system should be planned before any lab work begins. This system guides how waste is collected, stored, and prepared for removal. For hazardous waste, special rules apply because its...

lab safety

Cette collection fournit des consignes de sécurité à suivre lors du travail avec des matières et des équipements dangereux. Elle couvre des sujets universels tels que l'EPI, la sécurité électrique et les consignes générales en cas d'urgence, ainsi que certaines procédures de sécurité spécifiques aux laboratoires de chimie et de biologie.

Learn when emergency eyewash and shower stations are required in labs, how they respond to chemical spills, and why PPE like lab coats and goggles is still needed.

Laboratory Chemical Spill Response Stations | JoVE K12

Chemistry

CHEM.1

CHEM.1.C

Biology

BIO.1

BIO.1.C

Physics

PHYS.1

PHYS.1.C

Chemistry and Physics

IPC.1

IPC.1.C

Robert Rioux

Overview

Basic Safety Measures

Emergency Eyewash

Emergency Shower

Specifications and Maintenance

Summary

The Scientific Method

The scientific method is a detailed, empirical problem-solving process used by biologists and other scientists. This iterative approach involves ...

Inductive Reasoning

Inductive reasoning is a form of logical thinking that uses related observations to arrive at a general conclusion. It is uncertain and operates in ...

Deductive Reasoning

Deductive reasoning, or deduction, is the type of logic used in hypothesis-based science. In deductive reasoning, the pattern of thinking moves in the ...

Correlation and Causation

Correlation and CausationStatistical tests can calculate whether there is a relationship, or correlation, between independent and dependent variables. A ...

Ask questions and define problems related to specialized topics of study based on observations or information from text, phenomena, models, or investigations;

112.51.c.1.A.

Scientific Method

The scientific method is used to solve problems and explain phenomena. The development of the scientific method coincided with changes in philosophy ...

Demonstrating the Scientific Method with Tree Branches
ExpandObtain branches containing a few dozen typical leaves from five different local tree species. ...

Observation and Background Research
ExpandNOTE: The first two steps in the scientific process involve studying and observing natural phenomena of ...

Problem-Solving

A problem-solving strategy is a plan of action used to find a solution. It involves trial and error, algorithms, heuristics, and insights. Effective ...

Problem Definition

Problem definition is the initial and the most essential step in research.
The researcher identifies and explains the specific issue or gap to be ...

Apply science practices related to specialized topics of study to plan and conduct investigations or use engineering practices to design solutions to problems;

112.51.c.1.B.

Proper Personal Protective Equipment

Robert M. Rioux &#38; William A Elliott, Pennsylvania State University, University Park, PA
Hazards are many and varied in the laboratory, but the right ...

Electrical Safety

Robert M. Rioux &amp; Suprita Jharimune, Pennsylvania State University, University Park, PA
Among the many hazards present in the laboratory, electrical ...

Working with Centrifuges

Source: Robert M. Rioux &amp; Suprita Jharimune, Pennsylvania State University, University Park, PA
Earth's gravitational force is capable of separating ...

Working with Hot and Cold Sources

Source: Robert M. Rioux &amp; Suprita Jharimune, Pennsylvania State University, University Park, PA
Working with extreme temperatures, both high and low, ...

Guidelines in Case of a Laboratory Emergency

Robert M. Rioux &amp; Zhifeng Chen, Pennsylvania State University, University Park, PA
The most common laboratory emergencies include chemical spills, ...

Chemical Storage: Categories, Hazards And Compatibilities

Source: Robert M. Rioux &amp; Taslima A. Zaman, Pennsylvania State University, University Park, PA
While the use of various chemicals in experimental ...

Safe Handling of Mineral Acids

Source: Robert M. Rioux &#38; Taslima A. Zaman, Pennsylvania State University, University Park, PA
A mineral acid (or inorganic acid) is defined as a ...

Handling Chemical Spills

Source: Robert M. Rioux &#38; Taslima Zaman, Pennsylvania State University, University Park, PA
Since chemicals are commonly used for laboratory research ...

Proper Use of Autoclaves

Robert M. Rioux &amp; Zhifeng Chen, Pennsylvania State University, University Park, PA
Autoclaving is one of the most commonly used methods in the ...

Fume Hoods and Laminar Flow Cabinets

Robert M. Rioux &amp; William A. Elliott, Pennsylvania State University, University Park, PA
Fume hoods and laminar flow cabinets are engineering controls ...

Decontamination for Laboratory Biosafety

Robert M. Rioux and Zhifeng Chen, Pennsylvania State University, University Park, PA
Decontamination is essential for laboratory biosafety, as the ...

Proper Waste Disposal

Robert M. Rioux and Taslima A. Zaman, Pennsylvania State University, Pennsylvania, PA

Users are responsible for the proper disposal of the waste ...

Use appropriate safety equipment and practices during laboratory, classroom, and field investigations as outlined in Texas Education Agency-approved safety standards;

Common Lab Glassware and Uses

Source: Laboratory of Dr. Neal Abrams &#8212; SUNY College of Environmental Science and Forestry
Glassware is a regular appearance in the professional ...

Lab Techniques

Measurement Accuracy
The ability to repeat an experiment and get the same results, or reproducibility, is essential in scientific research. However, ...

Source: Smaa Koraym at Johns Hopkins University, MD, USA

	Preparation of LaboratoryExpand
	Here we show the laboratory preparation for 10 students ...

Source: Smaa Koraym at Johns Hopkins University, MD, USA

	Determining the Density of an EggExpand
	Density is a measure of how compact a substance or ...

Proper Lab Notebook Keeping

Organic Lab Notebook Keeping
Record keeping is a vital skill in science and organic chemistry labs. Without proper notes, descriptions, quantities, or ...

Source: Lara Al Hariri at the University of Massachusetts Amherst, MA, USA

	Preparation of the LaboratoryExpand
	Here, we show the laboratory preparation ...

Source: Lara Al Hariri and Ahmed Basabrain at the University of Massachusetts Amherst, MA, USA

	Nitration of Methyl BenzoateExpand
	From this lab onward, ...

Use tools appropriate to the specialized topic of study;

112.51.c.1.D.

SI Units: 2019 Redefinition

Measurement is integral to analytical chemistry. Each record comprises a number &#8211; denoting the magnitude&#160; &#8211; and the unit &#8211; a ...

International System of Units

The International System of Units, known as the SI system, is a universally accepted measurement system recognized and used worldwide. The SI system is ...

Measurement: Standard Units

Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement ...

Measurement: Derived Units

The International System of Units or SI system, by international agreement, has fixed measurement units for seven fundamental properties: length, mass, ...

Collect quantitative data using the International System of Units (SI) or qualitative data as evidence as appropriate to the specialized topic of study;

112.51.c.1.E.

Review and Preview

Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative ...

What is a Frequency Distribution

A frequency is the number of times a value of the data occurs. The sum of all the frequency values represents the total number of students included in the ...

Cumulative Frequency Distribution

A cumulative frequency distribution is another type of frequency distribution. Instead of reporting how many data values fall in some classes, it reports ...

Ogive Graph

An ogive graph is sometimes called a cumulative frequency polygon. It is one type of frequency polygon that shows cumulative frequency. In other words, ...

Histogram

The histogram is a graphical representation in the x-y form of data distribution in a data set. The horizontal x-axis is labeled with what the data ...

Relative Frequency Histogram

The relative frequency depicts the proportion of data points that have each value. The frequency tells the number of data points that have each value. ...

Scatter Plot

The most common and easiest way to display the relationship between two variables, x and y, is a scatter plot. A scatter plot shows the direction of a ...

Time-Series Graph

A time-series graph is a line graph with repeated measurements taken at successive intervals of time. It is also called a time series chart. To construct ...

Bar Graph

A bar graph is also called a bar chart and consists of bars that are separated from each other. It either uses horizontal or vertical bars to show ...

Multiple Bar Graph

As the name suggests, a multiple bar graph is the same as a bar graph but has multiple bars to depict relationships between different data values. One can ...

Pareto Chart

A Pareto chart is a bar graph or a combination of both line and bar graphs. The bar lengths represent the individual values or the frequency, while the ...

Pie Chart

A pie chart (or a pie graph) is a circular graphical chart or a pictorial representation of categorical data. It is divided into slices of pie each ...

Organize quantitative or qualitative data using representations appropriate to the specialized topic of study such as scatter plots, line graphs, bar graphs, charts, data tables, diagrams, scientific drawings, and student-prepared models;

112.51.c.1.F.

Modeling and Similitude

A scaled model of a dam is tested in a controlled environment to observe how it will manage water flow, turbulence, and pressure.
This setup predicts the ...

Typical Model Studies

Typical model studies analyze scaled-down systems to predict fluid behavior, focusing on interactions with free surfaces and flow around immersed bodies.
...

design-example-creating-a-hydraulic-model-of-a-dam-spillway

Design Example: Creating a Hydraulic Model of a Dam Spillway

A hydraulic model of a dam spillway is often created by scaling down the design, typically to a 1:15 ratio, to replicate key flow characteristics such as ...

Develop and use models to represent phenomena, systems, processes, or solutions to problems as appropriate to the specialized topic of study; and

112.51.c.1.G.

Scientific and engineering practices. The student, for at least 40% of instructional time, asks questions, identifies problems, and plans and safely conducts classroom, laboratory, and field investigations to explain phenomena or design solutions using appropriate tools and models. The student is expected to:

Laboratory Chemical Spill Response Stations

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