Charges
up to 100 tests - £3 per test
between 100 and 200 tests - £2.00 per test
between 200 and 300 tests - £1.75 per test
between 300 and 400 tests - £1.50 per test
between 400 and 500 tests - £1.25 per test
over 500 tests - £1 per test
 
No hidden charges!
No call out charges!
No minimum charge!
No transportation charges!
No hourly rates of pay!

Just a simple charge per item you need safety tested.