1. BS 2494:1990. Specification for Elastomeric seals for joints in pipework and pipelines

2. BS 2562:1979. Specification for Cable boxes for transformers and reactors

3. BS 2569-2:1965. Specification for Sprayed metal coatings - Part 2: Protection of iron and steel against corrosion and oxidation at elevated temperatures

4. BS 2586:1979. Specification for Glass and reference electrodes for the measurement of pH

5. BS 2594:1975. Specification for carbon steel welded horizontal cylindrical storage tanks

6. BS 2627:1970. Specification for Wrought aluminium - For electrical purposes -Wire

7. BS 2633:1987. Specification for Class I arc welding of ferritic steel pipework for carrying fluids

8. BS 2640:1982. Specification for Class II oxy-acetylne welding of carbon steel pipework for carrying fluids

9. BS 2654:1989. Specification for Manufacture of vertical steel welded non- refrigerated storage tanks with butt-welded shells for the petroleum industry

10. BS 2690-102:1979. Methods of testing Water used in industry - Part 102: Hydrazine spectrophotometric method (4-dimethylaminobenzaldehyde)