Control of hazardous energy on machinery. Specification
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Specification for flanged steel outside-screw-and yoke wedge gate valves for the petroleum industry
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Specification for steel wedge gate valves (flanged and butt-welding ends) for the petroleum, petrochemical and allied industries
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Mixing valves-Non-thermostatic, non-compensating mixing valves
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Mixing valves (manually operated) for ablutionary and domestic purposes.
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Mixing valves (manually operated) for ablutionary and domestic purposes.
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Methods for the sampling and analysis of rennet casein
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Methods for the sampling and analysis of acid casein
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Electrical protection relays.-General introduction and list of Parts
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