Glassware washers

More fully automated glassware washers are available in cabinet... 

Fig. 2. Simple glassware washer. The diagram shows a simple spinning-brush washing attachment (Southern Cross), which facilitates routine washing procedures. Other brushes are also supplied for variously shaped glassware.

The larger and more expensive glassware washers generally have employed pumping and heating systems which build up the water pressure and temperature and then force the water out of nozzles at high velocity. 

Completely immerse in a bucket containing 1% 7X. Do not use more 7X than necessary to avoid excessive foaming in the autoclave or glassware washer. 

Place in pipet rinser and rinse 3 hours with cold water, OR run through pipet rack in glassware washer at the 15-minute setting (step 6 can be skipped). 

Basically, the glassware washing procedure is divided into two phases the laboratory phase, which consists of preparations by research workers for decontamination by rinsing or soaking, and the glassware washing room phase, which completes the process. Communication is important between the laboratory worker and the glassware washer worker... 

Never clean cuvettes or any optically polished glassware with ethanolic KOH or other strong base, as this will cause etching. All cuvettes should be cleaned carefully with 0.5% detergent solution, in a sonicator bath, or in a cuvette washer. 

I.3. Summary. For washing pipets the desk-top pipet washer using the siphon principle has gained wide acceptance. For small, difficultly cleaned glassware, the newer sonic washers are available. 

Finally, the most expensive of the washers which can adequately wash most of the varieties of glassware with the high pressure water jets, have certain space, installation, and purchase cost requirements which might be difficult to achieve in many laboratories. 

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