1. BS 6068-2.44:1993 ISO 9964-3:1993 Water quality - Part 2: Physical, chemical and biochemical methods - Section 2.44 Determination of sodium and potassium determination of sodium and potassium by flame emission spectrometry

2. BS 6068-2.47:1995 ISO 11083:1994. Spectrometric methodWater quality - Part 2: Physical, chemical and biochemical methods - Section 2.47 Determination of chromium (VI) - using 1,5 diphenylcarbazide

3. BS 6068-2.48:1995 ISO 10359-2:1994. Water quality - Part 2: Physical, chemical and biochemical methods - Section 2.48 Determination of inorganically bound total fluoride after digestion and distillation

4. BS 6068-2.49:1995 ISO 10566:1994. Water quality - Part 2: Physical, chemical and biochemical methods - Section 2.49 Determination of aluminium - Spectrometric method using pyrocatechol violet

5. BS 6068-2.69:2000 ISO 15089:2000. Water quality - Guidelines for selective immunoassays for the determination of plant treatment and pesticide agents

6. BS 6068-2.7:1984 ISO 5664:1984. Water quality - Part 2: Physical, chemical and biochemical methods - Section 2.7 Determination of ammonium distillation and titration method

7. BS 6068-2.8:1984 ISO 6058:1984. Water quality - Part 2: Physical, chemical and biochemical methods - Section 2.8 Determination of calcium content EDTA titrimetric method

8. BS 6068-2.9:1984 ISO 6059:1984. Water quality - Part 2: Physical, chemical and biochemical methods - Section 2.9 Determination of the sum of calcium and magnesium EDTA titrimetric method

9. BS 6068-4.12:1998 ISO 11731:1998. Water quality - Part 4: Microbiological methods - Section 4.12 Detection and enumeration of Legionella

10. BS 6068-5.17:1995 ISO 10229:1994. Water quality - Part 5: Biological methods - Section 5.17 Determination of the prolonged toxicity of substances to freshwater fish