1. Obtain and read MSDS on all chemicals.
2. Observe all precautions on MSDS and container lables.
3. Wear a splash resistant face shield.
4. Wear chemical resistant gloves. Ones suited to the chemicals being used.
5. Wear a chemical resistant apron.
6. Wear a dust mask.
7. Have an eyewash bottle nearby.
8. If a hazardous chemical splashes onto your clothing remove the clothing ASAP.
9. Work in a ventilated area.
10. Clean up work area well when finished. Use soap and water.
11. Keep chemicals locked up.
12. There is no such thing as "OUT OF REACH" to a child. If an adult can gain access, a child can gain access, its only a matter of time and determination. Locks may stop them or just slow them down a bit. Supervision is paramount.
Rules for Mixing Chemicals
1. Be sure that all trays and measuring cups are CLEAN.
2. Measure or weigh out all of the ingredients before mixing.
3. Mix chemicals in the exact order in which they are listed in the formula.
3. Dissolve completely and mix into the solution thoroughly each chemical before adding the next.
4. After the last chemical is dissolved, make up the final volume by adding cold water.
5. Store the solutions in tightly capped bottles, which are just large enough to contain the quantity mixed.
Tip: If your developer formula includes Sodium Sulfite, dissolve half a pinch of it in the water before adding developer. This tiny amount of sodium sulfite is plenty to protect the developer from oxidation while mixing. If all of the sodium sulfite were to be added first, it will be very difficult to desolve the other chemicals.
Tip: It is easier to dissolve chemicals into warm water than into cold but be aware that some chemicals can heat warm water to exceed the boiling point.
Tip: Always add concentrated chemicals to water and not the other way around. In the case of strong acids or bases it is a matter of safety!.
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