Before you use the distilled water, you should check it to determine if it meets the quality requirements for your particular use. Never assume that it is of adequate quality. If you are unfamiliar with the operation of the still or other water treatment system, ask the Assistant Director to demonstrate the systems to you so you can understand and become familiar with how to operate them. Do not leave the still running unattended. When placing an order for laboratory items, be certain that the correct item is being requested.
Vendors frequently charge penalties for items that are returned because of errors in ordering.
Always use an aspirator bulb. All electrical equipment must be grounded. Avoid the use of electrical equipment while you are standing on a wet floor. Do not purchase gas cylinder valve adapters which could be used to fit an oil-pumped gas regulator, such as the regulator for nitrogen or air cylinders, to a cylinder of explosive or oxidizing gas such as oxygen, nitrous oxide, or hydrogen . Adapters of this type are not allowed in the Geoenvironmental Engineering Laboratory.