Stability chambers options

Refer to Figs. 14.3 and 14.4 for photographs of a photo-stability chamber using a xenon radiation source (Option I) and a photo-stability chamber using two separate radiation sources (Option II). 

Fig. 14.3 Atlas SUNTEST CPS/CPS+ photo-stability chamber, ICH option I (Courtesy of Atlas Material Testing Technology LLC)...

Preventative maintenance (and cleaning) for photo-stability chambers will depend on the type of chamber and variables such as (1) does the chamber control temperature or humidity, (2) does it have built-in radiation monitors and (3) is it Option I or Option II. The information provided for preventative maintenance of tempera-ture/humidity chambers (refer to Section 14.6) applies here. The chamber manufacturer will provide specific procedures and frequencies for preventative maintenance and these should be transferred to an internal SOP. 

In Figure 33 is pictured Weiss Gallenkamps LSC020.STX.C (A), Light Stress Chamber (39). This unit has a metal halide lamp as its sources for irradiation. This option is also available in their custom-made, walk-in, drug stability rooms. 

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