dilluns, 19 de setembre del 2016

Lab Equipment/Safety Labels

DEFINITIONS
  • To protect the eyes: Safety googles 
  • For measuring temperature: Thermometer
  • For cleaning the inside of a test tube: Wire brush
  • For measuring mass: Watch glass
  • For removing and holding a hot beaker: Tongs
  • To protect the bottom of a beaker or flask from the flame; to support a beaker or flask on a ring clamp: Wire gauze
  • For holding a flask, a beaker, or a test tube on a ring stand: Iron ring
  • For holding an individual test tube: Test tube holder
  • For holding one or more test tubes: Test-tube rack
  • For measuring and pouring liquids; NOT for heating or mixing substances: Erlenmeyer flask
  • For measuring and pouring liquids; for heating or mixing substances: Beaker 
  • To aid in pouring a liquid from a wide mouth container to a small-mouth container; to filter substances when filter paper is used: Funnel
  • For heating a small amount of substance: Test tubes
  • For measuring length or distance: Metric tape
  • For transferring a small amount (drops) of liquid: Dropper
  • For plucking or handling small objects: Forceps
  • To mix or stir substances; made of glass to resist heat, stains, corrosion: Glass stirring 
  • For heating, sterilization, and combustion: Bunsen burner
  • For stirring: Spatula or pipet
  • For pulling liquid into a pipette: Microipets
  • For holding solids while being weighed, oras a cover for beaker: Spatula
  • For making up solutions to a known volume: Gas bottle
SAFETY LABELS

  1. Substances that made explode under definite conditions. Avoid shock, friction, sparks and heat: 
  2. Substances that can ignite combustible material or worsen existing fires and thus make fire-fighting more difficuls. Keep away from combustible material:

  3. Spontaneously flammable substances. Avoid contact with air. Highly flammable gases and flammable liquids. Keep away from open fires, sources of heat and sparks:

  4. Substances that very hazardous to health when breathed, swallowed or in contact with the skin and may even lead to death. Avoid contact with the human body: 

  5. Substances that can destroy living tissue as well as equipment. Do not breathe vapours and avoid contact with the skin, eyes and clothing: 
  6. Symbol that designates substances that may have irritant effects on skin, eyes and respiratory organs. Do not breathe vapours and avoid contact with skin and eyes: 
  7. Substances that when taken up by the body cause slight damage. Avoid contact with the human body, including inhalation of the vapours: 
WHAT WILL YOU USE FOR...?

  1. Holding 100mL of water: Beaker
  2. Measuring 27mLof líquid: Graduated cylinder
  3. Measuring exactly 43mL of an acid: Dropper
  4. Massing out 120g of sodium chloride: Buret