Safety laboratory disposal

Maintain vigilance over the use and disposal of PPE (e.g., safety glasses, disposable Ty vek laboratory coat, disposable booties) during occupancy within the laboratory. In addition, it is recommended that disposable Tyvek sleeves are used when transferring liquids, for example during dilution preparation. 

Reactive process streams should be neutralized in a timely manner to permit conscientious disposal and to avoid safety problems. All streams that have not been effectively neutralized should be considered potentially hazardous, and the hazard should be assessed, perhaps in a safety laboratory, before storage. 

Design of a modem high school chemistry course lecture outline demonstrations laboratory methods inventory control equipment needs examinations safety and disposal. 

The company was a private label manufacturer of home maintenance and personal care products. Its laboratory would be involved with new product development, evaluation of raw materials, testing of competitive products, and quality control. Laboratory personnel would also be responsible for chemical safety in the plant and for proper waste disposal. 

A word of caution Metals, materials in general, chemicals used to study metals in the laboratory, chemicals used for corrosion protection, and essentially any chemicals should be (1) used in compliance with all applicable codes, laws, and regulations (2) handled by trained and experienced individuals in keeping with workmanlike environmental and safety standards and (3) disposed only using allowable methods and in allowable quantities. 

H. Safety considerations. The Occupational Safety and Health Administration (OSHA), US Department of Labor, standard entitled Occupational Exposure to Hazardous Chemicals in Laboratories (29 CFR 1910.1450) makes it necessary to address safety issues in the SOP. The standard requires laboratories that use hazardous chemicals to maintain employee exposures at or below the permissible exposure limits specified for these chemicals in 29 CFR Part 1910, Subpart Z. Hazards associated with any specific chemicals used in a method must be addressed so that the user has the information needed to follow the Chemical Hygiene Plan for their laboratory. The method developer should limit the use of hazardous chemicals where feasible. The use of toxic and/or carcinogenic reagents should be avoided or eliminated as much as possible. Additionally, the cost of disposal is increasing and could impact the practicality of a method. Material Safety Data Sheets for the analyte(s) and any unusual or hazardous reagents should be provided for the user. 

Radioactive assays have fallen out of favor over the last decade, and few HTS assays are run using radioactive tracers. Safety, cost, and the need to dispose of large amounts of waste, along with the availability of nonradioactive formats have hastened their decrease. However, scintillation proximity assays (SPA) are still run in some HTS laboratories. 

Some of the challenges facing the industrial laboratory are limited resources, cost containment, productivity, timeliness of test results, chemical safety, spent chemicals disposal, technician capability, analytical capability, disappearing skills, and reliability of test results. The present R D climate in the chemical industry is one of downsizing at corporate level (lean and mean), erosion of boundaries between basic and applied science, and polymer science and analytical chemistry as Cinderella subjects. Difficult chemical analyses are often run by insufficiently skilled workers (a managerial issue). 

DesMarteau, D. D. et al., J. Amer. Chem. Soc., 1987, 109, 7194-7196 Fluorine is the most electronegative and reactive element known, reacting, often violently, with most of the other elements and their compounds (note the large MRH values quoted below). Handling hazards and disposal of fluorine on a laboratory scale are adequately described [1,2,3,4,5][6], and a more general review is also available [7], Safety practices associated with the use of laboratory- and industrial-scale fluorine cells and facilities have been reviewed [8], Equipment and procedures for the laboratory use of fluorine and volatile fluorides have been... 

Laboratory Safety From a laboratory safety standpoint, both open and closed systems have mechanisms for the disposal of hazardous wastes, thus reducing the technician s exposure to potentially toxic materials. Performing HIAR online (closed system) as opposed to off-line mechanisms (microwave ovens or steamers) removes the possibility of being burned while handling hot containers or boiling liquids. 

Note The review of laboratory experiments in this book are not meant to replace detailed laboratory procedures, disposal and safety concerns. Under NO circumstances are the scenarios for the labs to be used as directions for actually performing the laboratory work. See the bibliography at the end of this book for a list of resources that provide detailed directions. 

The description of the method to be used should include details of all practical precautions which will be taken to limit risk, such as the need for ventilation, minimization of inhalation of particulates or aerosols, using fume cupboards or safety screens, and wearing gloves, laboratory coat, and safety spectacles. Handling procedures, packaging for transit, and disposal of unused reactants or products all need to be considered. 

For the analysts, laboratories wishing to dispose of materials containing dilute concentrations of these constituents should contact the Department of Environmental Health and Safety for advice regarding the proper disposition of the materials. In addition, the list of such materials is not included here, as it is subject to periodic updates. Furthermore, the list is not meant to be complete and may not include substances that have the hazardous characteristics as defined above. Omission of a chemical from this list does not mean that it is without toxic properties or any other hazard. 

The beneficial use of radiation is one of the best examples of how careful characterization of the hazard is essential for its safe use. A radioactive substance can be safely stored or transported if appropriately contained. Depending on the characteristics of the radioactive material, it can be safely handled by using appropriate shielding and safety precautions. Laboratory workers usually wear special badges that quantify radiation exposure to ensure that predetermined levels of exposure, which are considered safe, are not exceeded. Unfortunately, after more than 50 years, society has not yet been able to design and implement a safe way to dispose of radioactive waste. The hazardous properties of radiation are explored further in a subsequent chapter. 

Every student who works in a chemical laboratory is warned that organic chemicals should never be stored for long times because they can explode without warning or apparent provocation. Bottles of organic chemicals should always be disposed of within a few years, and, if a chemical is found that might be very old, a bomb squad of safety experts should be called to remove it and properly dispose of it. 

These reports are based on 120 technical reports (here denoted by KBS TR) on different technical aspects of waste treatment and ground disposal. More than 70 university departments and consulting companies in Sweden and abroad have been engaged in the preparation of these reports. The research on storage of radioactive waste in the ground is still in progress, both within the Nuclear Fuel Safety Project but also within a Swedish-American joint project between Swedish Nuclear Fuel Supply Co(Svensk Karnbranslefdrsorjning AB, SKBF), Fack, S-10240 Stockholm, Sweden, and Lawrence Berkeley Laboratory, Earth Science Division, University of California, Berkeley. 

Become familiar with the location and use of standard safety features in your laboratory. All chemistry laboratories should be equipped with fire extinguishers, eyewashes, safety showers, fume hoods, chemical spill kits, first-aid supplies, and containers for chemical disposal. Any questions regarding the use of these features should be addressed to your instructor or teaching assistant. 

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