IS 5409 -1985 Code Book PDF free download
This Indian Standard ( First Revision ) was adopted by the Indian Standards Institution on 30 August 1985, after the draft finalized by the Soil Amendments and Reclamation of Problem Soils Sectional Committee had been approved by the Agricultural and Food Products Division Council. Limestone and dolomite apart from being used in cement, steel, foundry, chemical and glass industries, are also used as soil amendments for correcting soil acidity. This standard was first .published in 1969 and included liming materials such as limestone, dolomite, basic slag, sea-shells, press mud, by-product calcium carbonate and by-product hydrated lime. Since the neutralizing value and other physical characteristics of liming materials vary to a great extent, it was considered desirable to prepare separate specifications for different liming materials used as soil amendments. Hydrated lime and burnt lime have been covered under Part 1. The requirements for limestone for chemical industries, foundries and for limestone and dolomite for glass industries have been covered in IS : 3204-1978*, IS : 4140-1978 t, and IS : 997-1973: respectively. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS : 2-1960 s. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.
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