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BS 812-118-1988
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BS 89-2-1990
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BS EN 2139-1990
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BS 6127-4-1990
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BS 1252-1991
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BS 4062-2-1990
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BS 5666-7-1991
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BIP 2069-2005
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BS 7076-3-1989
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BS 4727-1 Group 12-1991
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BS 4087-1989
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BS 4427-14-1989
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BS EN 3541-1992
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BS 4805-1989
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BS 6248-1-1982
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BS 5817-13-1990
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BS 3523-1991
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BS 2767-1991
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BS ISO 4903-1990
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BS 7455-3-1991
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BS 5315-1991
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BS 3087-13-1991
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BS 7463-2-1991
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BS 3680-2B-1993
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BS 3445-2-1992
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