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1.1 This test method covers the determination of carbonate content of soils and soft rock which can be readily broken down by mechanical effort. It is a gasometric method that uses a simple portable apparatus. Results should be clearly stated as the calcite equivalent in percent because different carbonate species cover a wide range of percent calcite equivalent as shown below for a number of carbonates:

Species

Cation

Calcite
Equivalent, %

Magnesite

Mg

117.0

Dolomite

Ca, Mg

108.6

Calcite

Ca

100.0

Aragonite

Ca

100.0

Rhodocrosite

Mn

87.1

Siderite

Fe

86.4

Smithsonite

Zn

79.8

Witherite

Ba

50.7

Cerrusite

Pb

37.5

Product Details

Published:
05/01/2014
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