lecture 1

Question 1

what is precision and how is it usually reported?

Answer 1

it is the reproducibility of a set of measurements and is normally reported as standard deviation

s= √(Σ(xi-x)^2/(n-1)

Question 2

what is accuracy and what is the calculation regarding accuracy

Answer 2

It is how close a measurment is to its desired or therotical value and is reported as percent error (= Actual value- expected value/expected value x 100)

Question 3

what are 5 factors that can help in determining choice of method?

Answer 3

1. precision and accuracy
2. reporducibility
3. econmic
4. offical approval
5. sensitivity: ability to detect at low concentrations

Question 4

What are the three main international standars and policies

Answer 4

1. GMP (good manufacturing practices)
2. HACCP (hazard analysis and critical control point system)
3. ISO

Question 5

order the three international standards and policies from 1 bare minimum, to the your doing the most

Answer 5

1. GMP 2. HACCP 3. ISO

Question 6

Explain GMP

Answer 6

is the minimum food saftey standard that any business should have

Question 7

exaplain HACCP

Answer 7

Is a food saftey system that prevents food from being compramised by preventing and controlling for risks

Question 8

explain what ISO includes

Answer 8

Includes GMP, HACCP, and other requirements like managment review, internal audits etc.