Experiment #$2$ Data Sheet $($Known samples$)$:

Sample tested:

Observations Carbonates test:

Carbonates present: Yes $/$ No

$2.$ Sample tested:

Observations Chlorides test:

Chlorides present: Yes $/$ No

$3.$ Sample tested:

Observations Sulphates test:

Sulphates present: Yes $/$ No

$4.$ Sample tested:

Observations Nitrate test:

Nitrate present: Yes $/$ No

$5.$ Sample tested:

Observations Phosphate test:

Phosphate present: Yes $/$ No

Page $16$

Experiment #$2$ Data Sheet $($Unknown samples$)$:

Unknown #:

Observations Carbonates test:

Carbonates present: Yes $/$ No

$2.$ Observations Chlorides test: