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Hearing aids - Part 9- Methods for measurement of characteristics of hearing aids with bone vibrator output. Original standard BS 6083-9-1986 (1999) IEC 118-9-1985 in PDF full version. Additional info + preview on request
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Methods of Sampling and test for sodium and potassium silicates for industrial use - Part 3- Determination of silica content. Original standard BS 6092-3-1981 (1999) ISO 1690-1976 in PDF full version. Additional info + preview on request
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Methods of Sampling and test for sodium and potassium silicates for industrial use - Part 4- Determination of carbonate content. Original standard BS 6092-4-1981 (1999) ISO 1691-1976 in PDF full version. Additional info + preview on request
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Methods of Sampling and test for sodium and potassium silicates for industrial use - Part 5- Determination of total alkali content. Original standard BS 6092-5-1981 (1999) ISO 1692-1976 in PDF full version. Additional info + preview on request
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Methods of Sampling and test for sodium and potassium silicates for industrial use - Part 6- Preparation of solutions of not readily soluble products and determination of matter insoluble in water. Original standard BS 6092-6-1981 (1999) ISO 2122-1972 in PDF full version. Additional info + preview on request
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Methods of Sampling and test for sodium and potassium silicates for industrial use - Part 9- Determination of iron content. Original standard BS 6092-9-1981 (1999) ISO 3201-1975 in PDF full version. Additional info + preview on request
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