Sample A

Sample B

Sample C

Sample D

Sample A

Sample B

Sample C

Sample C

2015 Q4 (a)

2016 Q4 (a)

2003 Q4 (a)

2013 Q4 (c)

2010 Q4 (d)

2009 Q10 (a)

2003 Q4 (b)

2018 Q4 (i)

2015 Q4 (e)

2014 Q4 (g)

2013 Q4 (e)

2019 Q10 (b)

2018 Q4 (c)

2017 Q5 (e)

2016 Q5 (c)

2016 Q5 (f)

2014 Q5 (a)

2016 Q4 (g)

2006 Q4 (d)

2019 Q10 (c)

2016 Q11 (a)

2008 Q11 (b)

2007 Q10 (b)

Vinegar

Water of Crystallisation

HCl + Sodium Carbonate

Sodium Thiosulfate

Bleach

Iron Tablets

Ammonium Iron (II) Sulfate

Part 1

Part 2

Part 3

Part 4