1.1 This test method describes procedures for determining the washability characteristics of coarse-coal fractions and fine-coal fractions. Each sample being tested can have more than one coarse-coal size fraction and more than one fine-coal size fraction (see Annex A1). Each such size fraction has an upper size limit and a lower size limit, neither of which overlaps with the next larger nor smaller size fraction. (See Test Method D 4749.)<\/p>\n
1.2 While, in general, this test method has useful application in determining the washability characteristics of low-rank coals, in the strictest sense, it is not necessarily the most technically correct test method to determine washability characteristics of low-rank coals because of problems relative to the loss of moisture through drying during sample preparation and analysis. Methods that are directly applicable to low-rank coals are to be developed.<\/p>\n
1.3 The values stated in SI units are to be regarded as the standard. The values shown in parentheses are for information only.<\/p>\n
This standard does not purport to address 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 hazard statements, see Section 8 and Appendix X1.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | Scope Referenced Documents Terminology <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Summary of Test Method <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | Significance and Use Apparatus Reagents and Materials TABLE 1 <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | Hazards Sampling and Test Specimens FIG. 1 <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | FIG. 2 FIG. 3 <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Preparation of Apparatus Calibration and Standardization Procedure A, Coarse Coal <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Procedure B, Fine Coal Precision and Bias <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | Keywords A1. SELECTION OF PARTICLE SIZE A1.1 A2. ORGANIC LIQUIDS A2.1 A2.2 A2.3 A2.4 <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | A2.5 A2.6 A2.7 A3. PILOT TESTING A3.1 A3.2 A3.3 A3.4 X1. INFORMATION CONCERNING SAFETY PRECAUTIONS REGARDING THE USE OF ORGANIC LIQUIDS X1.1 Precautions X1.2 Choosing an Alternative Organic Liquid <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | X1.3 Materials Used in Construction of the Float\/Sink Apparatus REFERENCES <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" D4371-06 Standard Test Method for Determining the Washability Characteristics of Coal<\/b><\/p>\n |