| COLORED HALO STAINS WITH SHARP CONTOURS | | Problem |
Deposits or Organic Substance. |
| Possible Cause |
|
| Solution |
Rinse instrument thoroughly and immediately after use in distilled or de-mineralized water. |
| COLORED HALO STAINS AND THE SHARP CONTOURS ARE NOT PRESENT |
| Problem |
Metal Deposits. |
| Possible Cause |
In flushing water or steam there are iron, copper, manganese etc: are present. |
| Solution |
Use distilled or de-mineralized water. |
| WHITISH STAINS |
| Problem |
Phosphate Deposits |
| Possible Cause |
|
| Solution |
Check Composition of Cleaning Solution |
| YELLOW TO DARK BROWN COLORS |
| Problem |
Residue Deposits |
| Possible Cause |
Old cleaning solutions/ Incorrectly cleaned instruments |
| Solution |
Change baths after each use/ Rinse instruments immediately after use in distilled or de-mineralized water. |
| BLACK STAINS |
| Problem |
Caustic Reaction |
| Possible Cause |
Detergent with low pH content ( 6 or less ) |
| Solution |
Use Neutral Detergent |
| BLUISH-BLACKISH STAINS |
| Problem |
Metallic Coating or Platting |
| Possible Cause |
Metals of different types have been sterilized together such as: for instance stainless steel with Silver / Chrome / etc, etc. |
| Solution |
Sterilize only the similar metal instruments together. |
| SEVERAL COLORS |
Problem |
Excess Heat (Chromatic Oxide) |
| Possible Cause |
The autoclave is not operating properly or has been set to very high temperature (This can cause metal to loose some of its properties such as strength and hardness etc, etc.) |
| Solution |
Correct the autoclave temperature |
