CHEMLAB M1 Flashcards
Used to prevent or minimize exposure to hazards
PPE
- Prevents contaminants from being shed
- Protects the body against harmful chemicals
- Must be worn INSIDE the lab; must be removed when OUTSIDE the lab
Lab Gown
- Eye wear protection against harmful chemicals that could cause eye irritation
- Are recommended any time a splash of chemicals or infectious substances could reach the eyes
Goggles
- Protection against inhalation of strong fumes that could cause airway suffocation and irritation
Face Mask
- Fluid resistant and provides the wearer protection against large droplets, splashes, or sprays of bodily or other hazardous chemical fluids.
- Protects patient from wearer’s respiratory emissions.
- Commonly available and cheaper; Nose wire for better fit
disposable/surgical mask
- Reduces wearer’s exposure to particles including small particle aerosols and large droplets (only non-oil aerosols)
- Filters out at least 95% of airborne particles including large and small particle
N95 mask
- Prevents skin contamination from toxic substances that can cause burns and irritation.
- Common: Latex and Nitrile
gloves
Proper waste disposal:
1. Dispose waste products according to ?.
2. Broken apparatus should be thrown to the ? provided in each lab.
3. Acids and alkali solution should be ? prior to disposal.
4. ? should be discarded properly.
5. Each sink shall be ? properly after each experiment.
classification; box container; neutralized or diluted; Non-hazardous solid wastes; cleaned
- contain pathogens and pose a risk of disease transmission
- e.g. waste and waste water contaminated with blood and other body fluids, including highly infectious waste such as laboratory cultures and microbiological stocks
INFECTIOUS WASTE
INFECTIOUS WASTE disposal
Yellow with biohazard symbol (highly infectious waste should be additionally marked “HIGHLY INFECTIOUS” Leak-proof strong plastic bag placed in a container (bags for highly infectious waste should be capable of being autoclaved).
- Used or unused ?
- e.g. hypodermic, intravenous
or other needles; auto-disable syringes; syringes with attached needles; infusion sets; scalpels; pipettes; knives; blades; broken glass
SHARPS
SHARPS disposal
Yellow with black band, marked SHARPS with biohazard symbol.
Puncture-proof container
- Pharmaceuticals that are expired or no longer needed;
- Cytotoxic waste containing substances with genotoxic properties,
- e.g. waste containing cytostatic drugs (often used in cancer therapy); genotoxic chemicals.
PATHOLOGICAL AND CYTOTOXIC WASTE
PATHOLOGICAL AND CYTOTOXIC WASTE disposal
Purple bag or band
- Waste containing chemical substances
- e.g. laboratory reagents;
disinfectants that are expired or no longer needed; solvents; waste with high content of heavy metals, e.g. batteries, broken thermometers and blood pressure gauges.
CHEMICAL WASTE
CHEMICAL WASTE disposal
Waste bins with yellow with black band plastic liners
Brown or amber-colored chemical resistant and leak proof glass bottles,
- Waste containing radioactive substances
- e.g. unused liquids from radiotherapy or laboratory research; contaminated glassware, packages or absorbent paper; urine and excreta from patients treated or tested with unsealed radionuclides; sealed sources.
RADIOACTIVE WASTE
RADIOACTIVE WASTE disposal
Orange plastic liners Labeled with radiation Symbol
Lead box
- Domestic waste
- Waste that does not pose
any specific biological, chemical, radioactive or physical hazard.
NON-HAZARDOUS OR GENERAL HEALTH CARE WASTE
NON-HAZARDOUS OR GENERAL HEALTH CARE WASTE disposal
Black; or Colorless plastic liners (non-biodegradabl e) Green (biodegradable); Plastic bag inside a container
Reagents, Supplies and contamination
1. Get only the ? amount of chemical.
2. Do not remove reagents from the ?.
3. Compounds that produce toxic fumes must be kept inside the ?.
4. Use only the spatulas and droppers assigned to ?.
5. Avoid ? between reagents
exact; reagent’s area; fume hood; specific reagents; cross contamination
PRIMARY STANDARD GRADE qualities:
- High purity.
- Established methods for confirming purity should be available.
- Atmospheric stability.
- Absence of hydrate water so that the composition of the solid does not change with variations in humidity.
- Modest cost.
- Reasonable solubility in the titration medium.
- Reasonably large molar mass so that the relative error associated with weighing the standard is minimized.
- Chemicals that have been prepared for a specific application are also available (used in only specific or special procedures or techniques).
- Including solvents for spectrophotometry and high-performance liquid chromatography. Information pertinent to the intended use is supplied with these reagents.
SPECIAL PURPOSE REAGENT CHEMICALS
- Acceptable for food, drug, or medicinal use and can be used for ACS applications or for general procedures that require stringent quality specifications and a purity of ≥95%
AMERICAN CHEMICAL SOCIETY (ACS) GRADE
- Generally equal to ACS grade (≥95%) and is acceptable for food, drug, or medicinal use and is suitable for use in many laboratory and analytical applications.
REAGENT GRADE
- Acceptable for food, drug, or medicinal use.
- Used for most laboratory purposes, but the USP being followed should always be reviewed prior to beginning to ensure the grade is appropriate for that methodology.
UNITED STATES PHARMACOPEIA (USP) GRADE
- The USP and the NF (USP–NF) jointly published a book of public pharmacopeial standards for chemical and biological drug substances, dosage forms, compounded preparations, excipients, medical devices, and dietary supplements. The listings here should be reviewed to determine which would be considered equivalent grades
NATIONAL FORMULARY (NF) GRADE
- Most popular grade for use in educational applications (all of the chemicals used in the laboratory at our campus/university are laboratory grade), but it’s exact levels of impurities are unknown (while excellent for teaching and training, it is not pure enough to be offered for food, drug, or medicinal use of any kind).
- Laboratory grade chemicals cannot be used for analytical methods or analysis.
LABORATORY GRADE
- Most popular grade for use in educational applications (all of the chemicals used in the laboratory at our campus/university are laboratory grade), but it’s exact levels of impurities are unknown (while excellent for teaching and training, it is not pure enough to be offered for food, drug, or medicinal use of any kind).
- Laboratory grade chemicals cannot be used for analytical methods or analysis.
LABORATORY GRADE
PURIFIED GRADE
PURIFIED GRADE