6 - Don't procrastinate or your proteins will coagulate whilst you wait

Question 1

What is the Sinner Circle?

Answer 1

• references the 4 key elements to cleaning
• energy, temperature, chemicals and time
• not all four sections will have equal parts
• a reduction in a section may reduce efficacy

Question 2

What conductivity measure is suitable for sterilisation?

Answer 2

<30 micro-siemens

Question 3

Describe distilled water.

Answer 3

Boiled and re-condensed standard tap water

Question 4

Describe de-ionised water.

Answer 4

Water is passed through an ion exchange that picks up sodium, calcium and potassium

Question 5

Describe reverse-osmosis water.

Answer 5

Semi-permeable membrane is used to remove particulate and bacteria from water

Question 6

Describe sterile water.

Answer 6

Water that has been filtered then sterilised

Question 7

What are the different types of detergents used?

Answer 7

• high and low alkaline detergent
• enzymatic
• pH neutral detergent

Question 8

Describe how a detergent functions.

Answer 8

• detergent molecules have a hydrophilic and hydrophobic end
• hydrophobic end attracts contamination, and is trapped within soap globules
• can then be washed away by water (hydrophilic end)