48
Safety Practices
Acid Digestions
Acid digestions, either at atmospheric pressure or at increased pressure, require
special care. Spattering and foaming of the sample/acid mixture may expose the
user to a hazard, as well as compromise the sample integrity. A digested sample
containing concentrated acid will react violently with water.
Perchloric acid and hydrofluoric acid are particularly hazardous to work with.
Perchloric Acid
Perchloric acid (HClO
4
) is extremely corrosive and a powerful oxidizing agent. It
presents severe fire and explosion hazards.
•
Use hoods, ducts, and other devices for removing vapors specifically designed
to accommodate this kind of fume. There is a severe explosion hazard if a
normal hood is used, or if the hood is not properly used and maintained.
•
Use goggles and face shields. Wear protective clothing and polyvinyl chloride
gloves.
Do not use rubber gloves.
•
Additional hazards and precautions are given in References 1, 2, 9, 10 and 11.
Hydrofluoric Acid
Hydrofluoric acid (HF) is also used for digestions. It is toxic and extremely
corrosive. Hydrofluoric acid will readily burn skin, and if the fumes are inhaled,
lung tissue. Burns may not be immediately painful or visible. Contact with eyes
could result in blindness.
Before using perchloric acid, you should be thoroughly familiar with
its hazards and safe handling practices.
Observe the manufacturer's
recommendations for use, storage, and disposal.
Avertissement: Avant d'utiliser l'acide perchlorique, vous devriez
être familier avec ses dangers et les pratiques de manipulation
sécuritaires.
Respecter les recommandations du fabricant pour
l'utilisation, le stockage et l'élimination.
!
Warning
Содержание AVIO 200
Страница 1: ...AVIO 200 SPECTROMETER Hardware Guide ICP OPTICAL EMISSION ...
Страница 2: ......
Страница 3: ...AvioTM 200 Spectrometer Customer Hardware and Service Guide ...
Страница 12: ...Contents 10 ...
Страница 30: ...28 ...
Страница 31: ...Safety Practices 1 ...
Страница 32: ...30 Safety Practices ...
Страница 56: ...54 Safety Practices ...
Страница 57: ...Preparing Your Laboratory 2 ...
Страница 58: ...Preparing Your Laboratory 56 ...
Страница 70: ...Preparing Your Laboratory 68 ...
Страница 71: ...System Description 3 ...
Страница 72: ......
Страница 84: ...System Description 82 Figure 3 7 GemCone nebulizer and end cap N0680343 also shown in cross sec tional view ...
Страница 97: ...Installation 4 ...
Страница 98: ......
Страница 119: ...Installation 117 Figure 4 8 Replacing the torch 1 3 4 6 8 2 9 10 5 7 ...
Страница 121: ...Installation 119 1 2 7 9 8 10 3 4 5 6 ...
Страница 164: ...Installation 162 ...
Страница 165: ...Maintenance 5 ...
Страница 166: ......
Страница 184: ...Maintenance 182 1 2 7 9 8 10 3 4 5 6 ...
Страница 188: ...Maintenance 186 Figure 5 8 Replacing the Torch 1 3 4 6 8 2 9 10 5 7 ...
Страница 272: ...Maintenance 270 ...
Страница 273: ...Troubleshooting 6 ...
Страница 274: ......
Страница 293: ...Troubleshooting 291 Figure 6 1 Normal Plasma Conditions at 0 torch position ...
Страница 294: ...Troubleshooting 292 Figure 6 2 Normal Plasma at 3mm position ...
Страница 296: ...Troubleshooting 294 Figure 6 4 Aux Gas too high Air Leak or Spray Chamber Temperature too high ...
Страница 297: ...Troubleshooting 295 Figure 6 5 Injector too far forward ...
Страница 298: ...Troubleshooting 296 Figure 6 6 No Aux Gas Torch may be glowing ...
Страница 299: ...Troubleshooting 297 Figure 6 7 Air Leak or Spray Chamber Temperature too high ...
Страница 300: ...Troubleshooting 298 Figure 6 8 Thin Plasma due to leak in Plasma Gas Line ...
Страница 308: ......