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. Lavaojos <ol>utiliza <ol><li>las estaciones lavaojos de emergencia usan agua a materiales ras nocivos o corrosivos de los ojos en caso de accidente</li></ol> <li>Especificaciones <ol><li>el lavaojos de emergencia deben ser situado a 10 segundos andando a tiempo la situación que puede ocurrir contaminación del ojo. No debe haber obstáculos bloqueando el camino para el lavador de ojos, incluyendo pero no limitado a las puertas. El lavador de ojos también debe estar ubicado en el mismo piso que el área que contiene el peligro de.</li>
		<li>La estación Lavaojos de emergencia requiere agua potable como su fuente de agua.</li>
		<li>La temperatura del agua del lavaojos debe mantenerse entre 60 ° F y 100 ° F (16 ° C - 38 ° C).</li>
		<li>El agua debe ser capaz de mantener un caudal de al menos 0,4 galones por minuto durante al menos 15 minutos, con una velocidad de flujo lo suficientemente bajo como para no dañar los ojos del usuario.</li>
		<li>El lavaojos debe ser capaz de ser abierto manualmente en un segundo, y agua debe ser capaces de permanecer fluyendo hasta que se apague por el usuario.</li>
	</ol></li> <li>Mantenimiento <ol><li>estaciones de lavaojos deben ser inspeccionados anualmente por un oficial medio ambiente salud y seguridad.</li>
		<li>Personal de laboratorio debe inspeccionar la estación Lavaojos de emergencia semanal, correr el agua durante 3 minutos, para asegurar funcionamiento y eliminar la acumulación de sedimentación en el lavador de ojos. Debe mantener un diario que documenta las inspecciones semanales.</li>
	</ol></li> <li>Funcionamiento los siguientes pasos deben ser utilizados para funcionar el lavaojos de emergencia en caso de emergencia: <ol><li>ir inmediatamente a la estación de lavaojos en caso de exposición a sustancias químicas nociva para los ojos. Ningún momento debería desperdiciarse en conseguir para el lavador de ojos como los primeros segundos de la exposición podrían causar daños irreversibles a los ojos.</li>
		<li>Empuje la palanca de lavaojos para iniciar el flujo del agua.</li>
		<li>Mantenga los ojos contaminados con dedos y sumergen los ojos en la corriente de agua por un mínimo de 15 minutos. Ojos para asegurar el lavado minucioso de los ojos todo.</li>
		<li>Si se usan contactos, no deje para eliminarlos antes de enjuagar los ojos con agua. Por el contrario, eliminar contactos mientras los ojos están irrigando con agua.</li>
		<li>Buscar atención médica.</li>
	</ol></li></ol> 2. Ducha de laboratorio <ol><li>usa <ol><li>estaciones de ducha de emergencia utilizan agua para eliminar materiales nocivos o corrosivos del cuerpo en el caso de un derrame accidental de la química.</li>
	</ol></li> <li>Especificaciones <ol><li>la ducha de emergencia debe estar ubicada dentro de los 10 s tiempo a pie el lugar que la contaminación del cuerpo ocurre. No debe haber obstáculos bloqueando el camino a la ducha, incluyendo pero no limitado a las puertas. La ducha también debe estar ubicada en el mismo piso que el área que contiene el riesgo de.</li>
		<li>La fuente de agua de la ducha debe ser agua potable.</li>
		<li>La temperatura del agua debe mantenerse entre 60 ° F y 100 ° F (16 ° C - 38 ° C).</li>
		<li>El agua debe ser capaz de mantener un caudal de por lo menos 20 galones por minuto durante al menos 15 minutos.</li>
		<li>La ducha debe ser capaz de activarse en un plazo máximo de un segundo y permanece encendida hasta que el usuario da vuelta apagado</li>
		<li>La altura de la columna de agua de la ducha debe ser entre 82 pulgadas y pulgadas 96.</li>
		<li>El diámetro de la columna de agua debe ser por lo menos 20 pulgadas a 60 pulgadas por encima del piso.</li>
		<li>Un recinto de la ducha debe ser al menos de 34 pulgadas de diámetro. No tienen recintos de duchas de emergencia laboratorio.</li>
	</ol></li> <li>Mantenimiento <ol><li>estaciones de ducha deben ser inspeccionados anualmente por la organización &#39; oficial medio ambiente salud y seguridad s.</li>
		<li>Laboratorio personal debe inspeccionar la estación de emergencia ducha semanal para garantizar adecuadas condiciones de trabajo. Debe mantener un diario que documenta las inspecciones semanales.</li>
	</ol></li> <li>Funcionamiento los pasos siguientes deben utilizarse para operar la estación de la ducha de la emergencia en caso de emergencia: <ol><li>ir inmediatamente a la estación de ducha en el caso de exposición a sustancias químicas nociva para el cuerpo. Ningún momento debe desperdiciarse en llegar a la ducha ya que los primeros segundos de la exposición podrían causar daños irreversibles.</li>
		<li>Quite cualquier ropa contaminada, otro traje o zapatos. No sea tímido acerca de quitarse la ropa. Si la ubicación primaria de los productos químicos derramados es vestida a una parte del cuerpo, a ser saturados con productos químicos. Quítese la ropa con cuidado si entran en contacto con zonas no expuestas del cuerpo. En algunos casos, puede ser más apropiado cortar la ropa para el retiro rápido y más seguro.</li>
		<li>Tire de la palanca de la ducha para iniciar el flujo del agua y lave el área afectada con agua durante al menos 15 minutos.</li>
		<li>Buscar atención médica.</li>
	</ol></li></ol>

en el caso de un derrame químico o salpicaduras que afecta el cuerpo o los ojos, el individuo contaminado debe no perder el tiempo acceso a una estación de lavaojos o ducha de la emergencia. Si la persona expuesta está segura de los peligros de derrame químico, siempre es recomendable utilizar el lavaojos o ducha. Sin embargo, para evitar tales accidentes, ropa de laboratorio adecuada siempre se debe usar cuando manejo de sustancias peligrosas. Personal de laboratorio debe ser informado acerca de los materiales que está...

estaciones de ducha y lavado ocular de emergencia

Robert M. Rioux, Universidad Estatal de Pensilvania, University Park, PA
 mandatos el Occupational Safety y Health Administration (OSHA) que una estación de lavaojos y ducha de emergencia estar fácilmente accesible en todos los lugares de trabajo en el que una persona pudiera estar expuesta a sustancias corrosivas o nocivas. Estaciones lavaojos y ducha de emergencia deben utilizarse en el caso de un accidente de laboratorio o lugar de trabajo que implica el derrame de un químico dañino, posiblemente corrosivo en el cuerpo o la salpicadura de tal sustancia en los ojos. Las estaciones de lavaojos y ducha no son, sin embargo, un reemplazo para el equipo de protección adecuado (EPI), como batas de laboratorio y gafas protectoras, que siempre se deben usar al manejar productos químicos peligrosos. Para la correcta selección del EPP, se refieren a su organización &#39; s salud ambiental &#38; oficina de la seguridad (EHS).

Estaciones de ducha y lavado ocular de emergencia

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

Todos los laboratorios y lugares de trabajo donde estén presentes productos químicos peligrosos estarán equipados con una estación de lavado de ojos y ducha de emergencia.El lavado de ojos y la ducha de emergencia se utilizan para eliminar los productos químicos nocivos o corrosivos que entran en contacto con los ojos y la piel, respectivamente.Este video demostrará el uso y mantenimiento adecuados del lavaojos y la ducha de emergencia y discutirá las medidas de seguridad relacionadas.Antes de manipular cualquier producto químico, consulte sus hojas de datos de seguridad para familiarizarse con los peligros asociados con la exposición. Informar al gerente del laboratorio y a la Oficina de Salud y Seguridad Ambiental de los materiales y procedimientos en uso.Para reducir el riesgo de exposición a sustancias químicas, use ropa protectora, como batas de laboratorio, gafas y guantes.Manipule productos químicos peligrosos debajo de las campanas extractoras para reducir adicionalmente la posibilidad de inhalación.Las estaciones de lavado de ojos de emergencia utilizan agua para eliminar los materiales peligrosos o corrosivos de los ojos en caso de exposición.Antes de trabajar con productos químicos peligrosos, asegúrese de que no haya obstrucciones, escaleras o puertas entre el espacio de trabajo y el lavaojos. Configure el espacio de trabajo en el mismo piso, de modo que se pueda alcanzar el lavaojos en menos de 10 segundos.En caso de exposición a una sustancia nociva o desconocida, acuda al lavaojos inmediatamente. El tiempo es crítico, ya que el mayor daño tiende a ocurrir en los primeros segundos de exposición. No se detenga para limpiar derrames o quitarse los lentes de contacto.Active la palanca del lavaojos. Esto inicia el flujo del agua.Finalmente, mientras mantienes los párpados abiertos, sumerge los ojos en la corriente. Róllalos para permitir un lavado completo. Quítese los lentes de contacto mientras se lavan los ojos. Lávese durante al menos 15 minutos y luego busque atención médica.Las duchas de emergencia lavan los materiales peligrosos o corrosivos de la piel. Al igual que en el caso del lavaojos, el camino desde el espacio de trabajo hasta la ducha debe estar libre de obstrucciones, puertas o escaleras. No debería llevar más de 10 segundos viajar desde el espacio de trabajo hasta la ducha.Si la piel está expuesta a una sustancia nociva o desconocida, vaya a la ducha inmediatamente. Una vez más, el mayor daño de la contaminación tiende a ocurrir en los primeros segundos de exposición. No se detenga a limpiar derrames.Quítese rápidamente cualquier ropa, zapatos u otro atuendo contaminado. No dudes ni sientas vergüenza, la ropa puede retener los compuestos en la piel, causando aún más daño. Tenga cuidado de que la ropa contaminada no entre en contacto con partes no expuestas de su cuerpo. Si es necesario, corta la ropa.Finalmente, tire de la palanca de la ducha para iniciar el flujo de agua. Esto inicia el flujo del agua. Enjuague el área afectada durante al menos 15 minutos y luego busque atención médica.Para garantizar un funcionamiento seguro, el lavaojos y la ducha deben cumplir con las siguientes especificaciones.Ambos usan agua potable a una temperatura de 60 a 100 grados Fahrenheit. Ambos deben tardar como máximo 1 s en encenderse y deben permanecer fluyendo hasta que el usuario lo apague. El lavaojos debe mantener un caudal de 0.4 galones por minuto durante al menos 15 minutos, y la ducha, 20 galones por minuto durante al menos 15 minutos.La ducha debe producir una columna de agua de entre 82 y 96 pulgadas de alto con un diámetro de al menos 20 pulgadas a una altura de 60 pulgadas. Si la ducha tiene una mampara, la mampara debe tener al menos 34 pulgadas de diámetro.El lavaojos y la ducha deben ser inspeccionados por los técnicos de laboratorio semanalmente, haciéndolos funcionar durante 3 minutos y manteniendo los resultados en un libro de registro. Además, debe ser inspeccionado anualmente por un Oficial de Salud y Seguridad Ambiental. Acabas de ver la introducción de JoVE a las estaciones de lavado de ojos y duchas de emergencia. Ahora debe comprender las medidas de seguridad relevantes, los procedimientos operativos para el lavado de ojos y la ducha, y sus especificaciones y mantenimiento correctos. ¡Gracias por mirar!

Education

Educación

JoVE Science Education

Basic Biology

Biología básica

Lab Safety

Seguridad en el laboratorio

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

Esta colección proporciona pautas de seguridad que deben seguirse cuando se trabaja con materiales y equipos peligrosos. Abarca temas generales tales como el uso de PPE, seguridad eléctrica y pautas generales de emergencia, así como algunos procedimientos de seguridad específicos para laboratorios de química y biología.

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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