Chemical checks

Question 1

Chemical checks

Answer 1

visually check processing machine for temps + chemical levels, use of chemical testing aids

Question 2

The step tests

Answer 2

this is used to take a daily test film, ideally there would be a master that is taken when the chemicals + machine are at the optimum

Question 3

It is a simple method

Answer 3

of checking chemicals+ tracing back to faults that may have occurred

Question 4

The daily film

Answer 4

would be compared to the master + any changes noted. it will show deteriorating fluids - as fluids become exhausted as the film gets paler

Question 5

It comprises of

Answer 5

a stick or plate that is made up of layers of materials to show differing density’s (this mimics the oral tissues + allows for comparison without exposing a pt)

Question 6

It should be carried out

Answer 6

every day using same repeatable criteria

Question 7

How is it used?

Answer 7

1. put a film on a flat surface

Question 8

2.

Answer 8

place the test item ontop of the film, ensure it matches exactly to the lead strips

Question 9

3.

Answer 9

put collimator on top of test item + film

Question 10

4.

Answer 10

take exposure of film ensuring same parameters are used each time

Question 11

5.

Answer 11

process the film + compare to master

Question 12

6.

Answer 12

grade it according to your company policies