Table 1-Data for Reference Substances
Method | T, °C | Mean (milligram (mg)/L) | Range (mg/L) | No. of labs |
Fluoranthene | ||||
Elution method | 15 | 0.275 | 0.104 to 0.920 | 6 |
25 | 0.373 | 0.198 to 1.050 | 7 | |
Hexachlorobenzene | ||||
Elution method | 15 | 9.21 * 10-3 | 2.06 * 10-3 to 2.16 * 10-2 | 6 |
25 | 9.96 * 10-3 | 1.19 * 10-3 to 2.31 * 10-2 | 7 | |
[GAMMA]-Hexachlorocyclohexane | ||||
Elution method | 15 | 6.50 | 4.43 to 10.5 | 6 |
25 | 9.20 | 6.64 to 14.5 | 7 | |
2,4-Dichlorophenoxyacetic acid | ||||
Flask method | 15 | 0.633 | 0.380 to 0.764 | 5 |
25 | 0.812 | 0.655 to 0.927 | 5 | |
Mercury(II) chloride: | ||||
Flask method | 15 | 53.0 | 47.7 to 56.5 | 4 |
25 | 66.4 | 58.3 to 70.4 | 4 | |
4-Nitrophenol: | ||||
Flask method | 15 | 9.95 | 8.88 to 10.9 | 6 |
25 | 14.8 | 13.8 to 15.9 | 6 |
FIGURE 1-CONCENTRATION VERSUS TIME OF SUBSTANCE IN THE ELUATE
FIGURE 2-SCHEMATIC TEST ARRANGEMENT
FIGURE 3-MICROCOLUMN (ALL DIMENSIONS IN MILLIMETERS)
Table 2-Determination of Solubility
Solubility data | step 1 | step 2 | step 3 | step 4 | step 5 | step 6 | step 7 |
Total volume H2O added (mL) | 0.1 | 0.5 | 1 | 2 | 10 | 100 | [LESS THAN EQUAL TO]100 |
Approximate solubility (g/L) | [LESS THAN EQUAL TO]1,000 | 200 | 100 | 50 | 10 | 1 | [LESS THAN]1 |
FIGURE 4-TEST ARRANGEMENT FOR THE DETERMINATION OF SOLUBILITY IN WATER OF SLIGHTLY SOLUBLE, LOW VOLATILITY ORGANIC SUBSTANCES
1 = Leveling vessel (e.g. 2.5 L chemical flask)
2 = Column (see figure 3 in paragraph (d)(1)(i)(A)(2) of this section)
3 = Fraction accumulator
4 = Thermostat
5 = Teflon tubing
6 = Glass stopper
7 = Water line (between thermostat and column, inner diameter: approximately 8 mm)
40 C.F.R. §799.6784