Standard Test Methods for Chemical Analysis of Limestone, Quicklime, and HydratedLime

Designation: C25-17 Standard Test Methods for Chemical Analysis of Limestone, Quicklime, and HydratedLime1

1. Scope
   1.1 These test methods cover the chemical analysis ofhigh-calcium and dolomitic limestone，quicklime，and hy-drated lime.These test methods are classified as either standard(preferred) or alternative (optional).
   1.2 The standard test methods are those that employ classi-cal gravimetric or volumetric analytical procedures and aretypically those required for referee analyses where chemicalspecification requirements are an essential part of contractualagreement between buyer and seller.
   1.3 Alternative or optional test methods are provided forthose who wish to use procedures shorter or more convenientthan the standard methods for the routine determinations ofcertain constituents. Optional test methods may sometimes bepreferred to the standard test methods, but frequently the use ofmodern and expensive instrumentation is indicated which maynot be accessible to everyone.Therefore, the use of these testmethods must be left to the discretion of each laboratory.
   1.4 The analytical procedures appear in the following order:
   Section
   Aluminum Oxide
   vailable Lime Index
   15
   Calcium and Magnesium Oxide:
   28
   Alternative EDTA Titration Method
   Calcium Carbonate Equivalent
   31
   Calcium Oxide:
   33
   Gravimetric Method
   vollumetric Method
   16
   Carbon Dioxide by Standard Method
   17
   Cormbined Oxides of lron and Aluminum
   2212
   Ferrous lron
   Appendix X5
   Free Calicium Oxide
   Appendix X6
   Free Moisture in Hydrated Lime
   21
   Free Moisture in Limestone
   Free Silica
   20
   llnsoluble Matter lincluding Silicon Dioxide:
   29
   Standard Method
   8
   Optional Perchloric Acid Method
   9

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