1.1 These test methods cover the chemical analysis of high-calcium and dolomitic limestone, quicklime, and hydrated lime. These test methods are classified as either standard (preferred) or alternative (optional).<\/p>\n
1.2 The standard test methods are those that employ classical gravimetric or volumetric analytical procedures and are typically those required for referee analyses where chemical specification requirements are an essential part of contractual agreement between buyer and seller.<\/p>\n
1.3 Alternative or optional test methods are provided for those who wish to use procedures shorter or more convenient than the standard methods for the routine determinations of certain constituents. Optional test methods may sometimes be preferred to the standard test methods, but frequently the use of modern and expensive instrumentation is indicated which may not be accessible to everyone. Therefore, the use of these test methods must be left to the discretion of each laboratory.<\/p>\n
1.4 The analytical procedures appear in the following order:<\/p>\n
Section Aluminum Oxide 15 Available Lime Index 28 Calcium and Magnesium Oxide: Alternative EDTA Titration Method 31 Calcium Carbonate Equivalent 33 Calcium Oxide: Gravimetric Method 16 Volumetric Method 17 Carbon Dioxide by Standard Method 22 Combined Oxides of Iron and Aluminum 12 Ferrous Iron X5 Free Calcium Oxide X6 Free Moisture in Hydrated Lime 21 Free Moisture in Limestone 20 Free Silica 29 Insoluble Matter Including Silicon Dioxide: Standard Method 8 Optional Perchloric Acid Method 9 Insoluble Matter Other Than Silicon Dioxide 11 Loss on Ignition 19 Magnesium Oxide 18 Manganese: Bismuthate Method X4 Periodate (Photometric) Method 27 pH Determination of Alkaline Earth Solutions 34 1a<\/b> Phosphorus: Titrimetric Method X3 Molybdovanadate Method 26 Silicon Dioxide 10 Strontium Oxide X2 Sulfur Trioxide 23 Total Carbon: Direct Combustion-Thermal Conductivity Cell Method 32 Total Iron: Standard Method, Potassium Dichromate Titration 13 Potassium Permanganate Titration Method X1 Ortho-Phenanthroline, Photometric Method 14 Total Sulfur: Sodium Carbonate Fusion 24 Combustion-Iodate Titration Method 25 Unhydrated Oxides 30 <\/p>\n
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Notes 11, 13, 27, 47, X2.1, and X5.1.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | Scope Referenced Documents <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Terminology Significance and Use General Apparatus and Materials and Reagents <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | General Procedures Performance Requirements for Test Methods TABLE 1 <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | TABLE 2 <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Insoluble Matter Including Silicon Dioxide (Standard Method) <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Insoluble Matter Including Silicon Dioxide (Optional Perchloric Acid Method) <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Silicon Dioxide Insoluble Matter TABLE 3 <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Combined Oxides (Iron, Aluminum, Phosphorus, Titanium, Manganese) Total Iron, Standard Method <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | Total Iron by Ortho-Phenanthroline Photometric Method <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | Aluminum Oxide Calcium Oxide by Gravimetric Method <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | Calcium Oxide by Volumetric Method <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Magnesium Oxide <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Loss on Ignition Free Moisture in Limestone Free Moisture in Hydrated Lime <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Carbon Dioxide by Standard Method FIG. 1 <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Sulfur Trioxide FIG. 2 <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Total Sulfur by Sodium Carbonate Fusion Total Sulfur by the Combustion-Iodate Titration Method <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Phosphorus by Molybdovanadate Method <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Manganese by the Periodate (Photometric) Method <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Available Lime Index <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Free Silica TABLE 4 <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Unhydrated Oxides Calculated on As-Received Basis TABLE 5 <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Calcium and Magnesium Oxide (Alternative EDTA Titration Method) <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Total Carbon by the Direct Combustion-Thermal Conductivity Cell Method TABLE 6 TABLE 7 <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Calcium Carbonate Equivalent <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | TABLE 8 <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | pH of Alkaline Earth Solutions <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Total Carbon and Sulfur by the Combustion\/Infrared Detection Method <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Keywords <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | X1. TOTAL IRON BY THE POTASSIUM PERMANGANATE TITRATION METHOD X1.1 X1.2 X1.3 X1.4 <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | X1.5 X1.6 X2. STRONTIUM OXIDE BY THE GRAVIMETRIC SULFATE (ETHER) METHOD X2.1 X2.2 X2.3 X2.4 X2.5 <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | X3. PHOSPHORUS BY THE TITRIMETRIC METHOD X3.1 X3.2 X3.3 X3.4 <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | X3.5 X3.6 X4. MANGANESE BY THE BISMUTHATE METHOD X4.1 X4.2 X4.3 X4.4 X4.5 <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | X4.6 X4.7 X5. FERROUS IRON BY TITRATION WITH POTASSIUM PERMANGANATE X5.1 X5.2 X5.3 X5.4 <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | X5.5 X5.6 X6. TEST METHOD FOR FREE CALCIUM OXIDE IN HIGH-CALCIUM HYDRATED LIME <\/p>\n X6.1 Scope | ||||||
| 36<\/td>\n | X6.5 Calculation <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" C25-99 Standard Test Methods for Chemical Analysis of Limestone, Quicklime, and Hydrated Lime<\/b><\/p>\n |