Appendix F. Isokinetic transit rates1 | |||||||||||||||
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[Transit rates in feet per second; depth is water depth; full, fills bottle; 10° tip, fills bottle with no spillage up to a 10° down tip of the nozzle from horizontal; fastest, fastest allowable rate for isokinetic sampling] | |||||||||||||||
Depth (feet) |
Rate | Mean stream velocity (vertical feet per second) |
Volume (milliliters) |
||||||||||||
1.50 | 2.00 | 2.50 | 3.00 | 3.50 | 4.00 | 4.50 | 5.00 | 6.00 | 7.00 | 8.00 | 9.00 | Maximum 10° minimum |
Minimum | ||
1-liter bottle, 1/4-inch nozzle | |||||||||||||||
1 | Full | 0.03 | 0.04 | 0.05 | 0.06 | 0.06 | 0.07 | 0.08 | 0.09 | 0.11 | 0.13 | 0.15 | 0.17 | 1,050 | 918 |
1 | 10° tip | 0.04 | 0.05 | 0.06 | 0.07 | 0.08 | 0.10 | 0.11 | 0.12 | 0.15 | 0.17 | 0.19 | 0.22 | 798 | 667 |
1 |
Fastest | 0.22 | 0.29 | 0.37 | 0.44 | 0.51 | 0.59 | 0.66 | 0.73 | 0.88 | 1.03 | 1.17 | 1.32 | 132 | |
2 | Full | 0.06 | 0.07 | 0.09 | 0.11 | 0.13 | 0.15 | 0.17 | 0.18 | 0.22 | 0.26 | 0.29 | 0.33 | 1,050 | 806 |
2 | 10° tip | 0.07 | 0.10 | 0.12 | 0.15 | 0.17 | 0.19 | 0.22 | 0.24 | 0.29 | 0.34 | 0.39 | 0.44 | 798 | 555 |
2 |
Fastest | 0.24 | 0.32 | 0.40 | 0.48 | 0.56 | 0.63 | 0.71 | 0.79 | 0.95 | 1.11 | 1.27 | 1.43 | 243 | |
3 | Full | 0.08 | 0.11 | 0.14 | 0.17 | 0.19 | 0.22 | 0.25 | 0.28 | 0.33 | 0.39 | 0.44 | 0.50 | 1,050 | 710 |
3 | 10° tip | 0.11 | 0.15 | 0.18 | 0.22 | 0.25 | 0.29 | 0.33 | 0.36 | 0.44 | 0.51 | 0.58 | 0.65 | 798 | 458 |
3 |
Fastest | 0.26 | 0.34 | 0.43 | 0.51 | 0.60 | 0.68 | 0.77 | 0.85 | 1.02 | 1.19 | 1.36 | 1.54 | 340 | |
4 | Full | 0.11 | 0.15 | 0.18 | 0.22 | 0.26 | 0.29 | 0.33 | 0.37 | 0.44 | 0.52 | 0.59 | 0.66 | 1,050 | 626 |
4 | 10° tip | 0.15 | 0.19 | 0.24 | 0.29 | 0.34 | 0.39 | 0.44 | 0.48 | 0.58 | 0.68 | 0.77 | 0.87 | 798 | 375 |
4 |
Fastest | 0.27 | 0.36 | 0.46 | 0.55 | 0.64 | 0.73 | 0.82 | 0.91 | 1.09 | 1.28 | 1.46 | 1.64 | 423 | |
5 | Full | 0.14 | 0.18 | 0.23 | 0.28 | 0.32 | 0.37 | 0.41 | 0.46 | 0.55 | 0.64 | 0.74 | 0.83 | 1,050 | 553 |
5 | 10° tip | 0.18 | 0.24 | 0.30 | 0.36 | 0.42 | 0.48 | 0.54 | 0.61 | 0.73 | 0.85 | 0.97 | 1.09 | 798 | 301 |
5 |
Fastest | 0.29 | 0.39 | 0.49 | 0.58 | 0.68 | 0.78 | 0.87 | 0.97 | 1.17 | 1.36 | 1.55 | 1.75 | 497 | |
6 | Full | 0.17 | 0.22 | 0.28 | 0.33 | 0.39 | 0.44 | 0.50 | 0.55 | 0.66 | 0.77 | 0.88 | 0.99 | 1,050 | 488 |
6 | 10° tip | 0.22 | 0.29 | 0.36 | 0.44 | 0.51 | 0.58 | 0.65 | 0.73 | 0.87 | 1.02 | 1.16 | 1.31 | 798 | 236 |
6 |
Fastest | 0.31 | 0.41 | 0.52 | 0.62 | 0.72 | 0.82 | 0.93 | 1.03 | 1.24 | 1.44 | 1.65 | 1.86 | 562 | |
7 | Full | 0.19 | 0.26 | 0.32 | 0.39 | 0.45 | 0.52 | 0.58 | 0.64 | 0.77 | 0.90 | 1.03 | 1.16 | 1,050 | 430 |
7 | 10° tip | 0.25 | 0.34 | 0.42 | 0.51 | 0.59 | 0.68 | 0.76 | 0.85 | 1.02 | 1.19 | 1.36 | 1.52 | 798 | 178 |
7 |
Fastest | 0.33 | 0.44 | 0.55 | 0.65 | 0.76 | 0.87 | 0.98 | 1.09 | 1.31 | 1.53 | 1.74 | 1.96 | 620 | |
8 | Full | 0.22 | 0.29 | 0.37 | 0.44 | 0.52 | 0.59 | 0.66 | 0.74 | 0.88 | 1.03 | 1.18 | 1.32 | 1,050 | 378 |
8 | 10° tip | 0.29 | 0.39 | 0.48 | 0.58 | 0.68 | 0.77 | 0.87 | 0.97 | 1.16 | 1.36 | 1.55 | 1.74 | 798 | 126 |
8 |
Fastest | 0.34 | 0.46 | 0.57 | 0.69 | 0.80 | 0.92 | 1.03 | 1.15 | 1.38 | 1.61 | 1.84 | 2.07 | 672 | |
10 | Full | 0.28 | 0.37 | 0.46 | 0.55 | 0.64 | 0.74 | 0.83 | 0.92 | 1.10 | 1.29 | 1.47 | 1.66 | 1,050 | 288 |
10 | 10° tip | 0.36 | 0.48 | 0.61 | 0.73 | 0.85 | 0.97 | 1.09 | 1.21 | 1.45 | 1.69 | 1.94 | 2.18 | 798 | 37 |
10 |
Fastest | 0.38 | 0.51 | 0.63 | 0.76 | 0.89 | 1.01 | 1.14 | 1.27 | 1.52 | 1.78 | 2.03 | 2.28 | 761 | |
12 | Full | 0.33 | 0.44 | 0.55 | 0.66 | 0.77 | 0.88 | 0.99 | 1.10 | 1.32 | 1.55 | 1.77 | 1.99 | 1,050 | 214 |
12 | 10° tip | ||||||||||||||
12 |
Fastest | 0.42 | 0.55 | 0.69 | 0.83 | 0.97 | 1.11 | 1.25 | 1.39 | 1.66 | 1.94 | 2.22 | 2.50 | 836 | |
14 | Full | 0.39 | 0.52 | 0.64 | 0.77 | 0.90 | 1.03 | 1.16 | 1.29 | 1.55 | 1.80 | 2.06 | 2.32 | 1,050 | 152 |
14 | 10° tip | ||||||||||||||
14 |
Fastest | 0.45 | 0.60 | 0.75 | 0.90 | 1.05 | 1.20 | 1.36 | 1.51 | 1.81 | 2.11 | 2.41 | 2.71 | 898 | |
15 | Full | 0.41 | 0.55 | 0.69 | 0.83 | 0.97 | 1.10 | 1.24 | 1.38 | 1.66 | 1.93 | 2.21 | 2.48 | 1,050 | 124 |
15 | 10° tip | ||||||||||||||
15 |
Fastest | 0.47 | 0.63 | 0.78 | 0.94 | 1.10 | 1.25 | 1.41 | 1.57 | 1.88 | 2.19 | 2.50 | 2.82 | 926 | |
1-liter bottle, 5/16-inch nozzle | |||||||||||||||
1 | Full | 0.04 | 0.06 | 0.07 | 0.09 | 0.10 | 0.12 | 0.13 | 0.14 | 0.17 | 0.20 | 0.23 | 0.26 | 1,049 | 918 |
1 | 10° tip | 0.06 | 0.08 | 0.09 | 0.11 | 0.13 | 0.15 | 0.17 | 0.19 | 0.23 | 0.26 | 0.30 | 0.34 | 800 | 668 |
1 |
Fastest | 0.34 | 0.46 | 0.57 | 0.69 | 0.80 | 0.92 | 1.03 | 1.15 | 1.38 | 1.61 | 1.84 | 2.07 | 132 | |
2 | Full | 0.09 | 0.12 | 0.14 | 0.17 | 0.20 | 0.23 | 0.26 | 0.29 | 0.35 | 0.40 | 0.46 | 0.52 | 1,049 | 806 |
2 | 10° tip | 0.11 | 0.15 | 0.19 | 0.23 | 0.26 | 0.30 | 0.34 | 0.38 | 0.45 | 0.53 | 0.60 | 0.68 | 800 | 557 |
2 |
Fastest | 0.37 | 0.50 | 0.62 | 0.74 | 0.87 | 0.99 | 1.12 | 1.24 | 1.49 | 1.74 | 1.98 | 2.23 | 243 | |
3 | Full | 0.13 | 0.17 | 0.22 | 0.26 | 0.30 | 0.35 | 0.39 | 0.43 | 0.52 | 0.60 | 0.69 | 0.78 | 1,049 | 709 |
3 | 10° tip | 0.17 | 0.23 | 0.28 | 0.34 | 0.40 | 0.45 | 0.51 | 0.57 | 0.68 | 0.79 | 0.91 | 1.02 | 800 | 460 |
3 |
Fastest | 0.40 | 0.53 | 0.67 | 0.80 | 0.93 | 1.07 | 1.20 | 1.33 | 1.60 | 1.87 | 2.13 | 2.40 | 340 | |
4 | Full | 0.17 | 0.23 | 0.29 | 0.35 | 0.40 | 0.46 | 0.52 | 0.58 | 0.69 | 0.81 | 0.92 | 1.04 | 1,049 | 626 |
4 | 10° tip | 0.23 | 0.30 | 0.38 | 0.45 | 0.53 | 0.60 | 0.68 | 0.75 | 0.91 | 1.06 | 1.21 | 1.36 | 800 | 376 |
4 |
Fastest | 0.43 | 0.57 | 0.71 | 0.86 | 1.00 | 1.14 | 1.28 | 1.43 | 1.71 | 2.00 | 2.28 | 2.57 | 424 | |
5 | Full | 0.22 | 0.29 | 0.36 | 0.43 | 0.50 | 0.58 | 0.65 | 0.72 | 0.86 | 1.01 | 1.15 | 1.29 | 1,049 | 552 |
5 | 10° tip | 0.28 | 0.38 | 0.47 | 0.57 | 0.66 | 0.75 | 0.85 | 0.94 | 1.13 | 1.32 | 1.51 | 1.70 | 800 | 303 |
5 |
Fastest | 0.46 | 0.61 | 0.76 | 0.91 | 1.06 | 1.21 | 1.37 | 1.52 | 1.82 | 2.13 | 2.43 | 2.73 | 497 | |
6 | Full | 0.26 | 0.35 | 0.43 | 0.52 | 0.60 | 0.69 | 0.78 | 0.86 | 1.04 | 1.21 | 1.38 | 1.55 | 1,049 | 487 |
6 | 10° tip | 0.34 | 0.45 | 0.57 | 0.68 | 0.79 | 0.91 | 1.02 | 1.13 | 1.36 | 1.58 | 1.81 | 2.04 | 800 | 238 |
6 |
Fastest | 0.48 | 0.64 | 0.81 | 0.97 | 1.13 | 1.29 | 1.45 | 1.61 | 1.93 | 2.26 | 2.58 | 2.90 | 562 | |
7 | Full | 0.30 | 0.40 | 0.50 | 0.60 | 0.71 | 0.81 | 0.91 | 1.01 | 1.21 | 1.41 | 1.61 | 1.81 | 1,049 | 429 |
7 | 10° tip | 0.40 | 0.53 | 0.66 | 0.79 | 0.92 | 1.06 | 1.19 | 1.32 | 1.58 | 1.85 | 2.11 | 2.38 | 800 | 180 |
7 |
Fastest | 0.51 | 0.68 | 0.85 | 1.02 | 1.19 | 1.36 | 1.53 | 1.70 | 2.04 | 2.38 | 2.73 | 3.07 | 620 | |
8 | Full | 0.35 | 0.46 | 0.58 | 0.69 | 0.81 | 0.92 | 1.04 | 1.15 | 1.38 | 1.61 | 1.84 | 2.07 | 1,049 | 377 |
8 | 10° tip | 0.45 | 0.60 | 0.75 | 0.91 | 1.06 | 1.21 | 1.36 | 1.51 | 1.81 | 2.11 | 2.42 | 2.72 | 800 | 128 |
8 |
Fastest | 0.54 | 0.72 | 0.90 | 1.08 | 1.26 | 1.44 | 1.62 | 1.80 | 2.16 | 2.51 | 2.87 | 3.23 | 672 | |
10 | Full | 0.43 | 0.58 | 0.72 | 0.86 | 1.01 | 1.15 | 1.29 | 1.44 | 1.73 | 2.01 | 2.30 | 2.59 | 1,049 | 287 |
10 | 10° tip | 0.57 | 0.75 | 0.94 | 1.13 | 1.32 | 1.51 | 1.70 | 1.89 | 2.26 | 2.64 | 3.02 | 3.40 | 800 | 38 |
10 |
Fastest | 0.59 | 0.79 | 0.99 | 1.19 | 1.39 | 1.59 | 1.78 | 1.98 | 2.38 | 2.77 | 3.17 | 3.57 | 762 | |
11 | Full | 0.47 | 0.63 | 0.79 | 0.95 | 1.11 | 1.27 | 1.42 | 1.58 | 1.90 | 2.22 | 2.53 | 2.85 | 1,049 | 219 |
11 | 10° tip | ||||||||||||||
11 |
Fastest | 0.60 | 0.80 | 1.00 | 1.20 | 1.40 | 1.60 | 1.80 | 2.00 | 2.40 | 2.80 | 3.20 | 3.60 | 830 | |
12 | Full | 0.52 | 0.69 | 0.86 | 1.04 | 1.21 | 1.38 | 1.55 | 1.73 | 2.07 | 2.42 | 2.76 | 3.11 | 1,049 | 143 |
12 | 10° tip | ||||||||||||||
12 |
Fastest | 0.60 | 0.80 | 1.00 | 1.20 | 1.40 | 1.60 | 1.80 | 2.00 | 2.40 | 2.80 | 3.20 | 3.60 | 906 | |
13 | Full | 0.56 | 0.75 | 0.94 | 1.12 | 1.31 | 1.50 | 1.68 | 1.87 | 2.24 | 2.62 | 2.99 | 3.37 | 1,049 | 68 |
13 | 10° tip | ||||||||||||||
13 |
Fastest | 0.60 | 0.80 | 1.00 | 1.20 | 1.40 | 1.60 | 1.80 | 2.00 | 2.40 | 2.80 | 3.20 | 3.60 | 981 | |
3-liter bottle, 5/16-inch nozzle | |||||||||||||||
2 | Full | 0.03 | 0.04 | 0.05 | 0.06 | 0.07 | 0.09 | 0.10 | 0.11 | 0.13 | 0.15 | 0.17 | 0.19 | 2,830 | 2,118 |
2 | 10° tip | 0.04 | 0.05 | 0.06 | 0.07 | 0.09 | 0.10 | 0.11 | 0.12 | 0.15 | 0.17 | 0.20 | 0.22 | 2,461 | 1,749 |
2 |
Fastest | 0.13 | 0.17 | 0.21 | 0.25 | 0.30 | 0.34 | 0.38 | 0.42 | 0.51 | 0.59 | 0.68 | 0.76 | 712 | |
3 | Full | 0.05 | 0.06 | 0.08 | 0.10 | 0.11 | 0.13 | 0.14 | 0.16 | 0.19 | 0.22 | 0.26 | 0.29 | 2,830 | 1,837 |
3 | 10° tip | 0.06 | 0.07 | 0.09 | 0.11 | 0.13 | 0.15 | 0.17 | 0.18 | 0.22 | 0.26 | 0.29 | 0.33 | 2,461 | 1,468 |
3 |
Fastest | 0.14 | 0.18 | 0.23 | 0.27 | 0.32 | 0.36 | 0.41 | 0.46 | 0.55 | 0.64 | 0.73 | 0.82 | 993 | |
4 | Full | 0.06 | 0.09 | 0.11 | 0.13 | 0.15 | 0.17 | 0.19 | 0.21 | 0.26 | 0.30 | 0.34 | 0.38 | 2,830 | 1,593 |
4 | 10° tip | 0.07 | 0.10 | 0.12 | 0.15 | 0.17 | 0.20 | 0.22 | 0.25 | 0.29 | 0.34 | 0.39 | 0.44 | 2,461 | 1,224 |
4 |
Fastest | 0.15 | 0.20 | 0.24 | 0.29 | 0.34 | 0.39 | 0.44 | 0.49 | 0.59 | 0.68 | 0.78 | 0.88 | 1,237 | |
5 | Full | 0.08 | 0.11 | 0.13 | 0.16 | 0.19 | 0.21 | 0.24 | 0.27 | 0.32 | 0.37 | 0.43 | 0.48 | 2,830 | 1,379 |
5 | 10° tip | 0.09 | 0.12 | 0.15 | 0.18 | 0.21 | 0.25 | 0.28 | 0.31 | 0.37 | 0.43 | 0.49 | 0.55 | 2,461 | 1,010 |
5 |
Fastest | 0.16 | 0.21 | 0.26 | 0.31 | 0.36 | 0.42 | 0.47 | 0.52 | 0.62 | 0.73 | 0.83 | 0.94 | 1,451 | |
6 | Full | 0.10 | 0.13 | 0.16 | 0.19 | 0.22 | 0.26 | 0.29 | 0.32 | 0.38 | 0.45 | 0.51 | 0.58 | 2,830 | 1,190 |
6 | 10° tip | 0.11 | 0.15 | 0.18 | 0.22 | 0.26 | 0.29 | 0.33 | 0.37 | 0.44 | 0.52 | 0.59 | 0.66 | 2,461 | 820 |
6 |
Fastest | 0.17 | 0.22 | 0.28 | 0.33 | 0.39 | 0.44 | 0.50 | 0.55 | 0.66 | 0.77 | 0.88 | 0.99 | 1,641 | |
7 | Full | 0.11 | 0.15 | 0.19 | 0.22 | 0.26 | 0.30 | 0.34 | 0.37 | 0.45 | 0.52 | 0.60 | 0.67 | 2,830 | 1,021 |
7 | 10° tip | 0.13 | 0.17 | 0.21 | 0.26 | 0.30 | 0.34 | 0.39 | 0.43 | 0.52 | 0.60 | 0.69 | 0.77 | 2,461 | 652 |
7 |
Fastest | 0.18 | 0.23 | 0.29 | 0.35 | 0.41 | 0.47 | 0.53 | 0.58 | 0.70 | 0.82 | 0.93 | 1.05 | 1,809 | |
8 | Full | 0.13 | 0.17 | 0.21 | 0.26 | 0.30 | 0.34 | 0.38 | 0.43 | 0.51 | 0.60 | 0.68 | 0.77 | 2,830 | 870 |
8 | 10° tip | 0.15 | 0.20 | 0.25 | 0.29 | 0.34 | 0.39 | 0.44 | 0.49 | 0.59 | 0.69 | 0.79 | 0.88 | 2,461 | 501 |
8 |
Fastest | 0.18 | 0.25 | 0.31 | 0.37 | 0.43 | 0.49 | 0.55 | 0.62 | 0.74 | 0.86 | 0.99 | 1.11 | 1,960 | |
9 | Full | 0.14 | 0.19 | 0.24 | 0.29 | 0.34 | 0.38 | 0.43 | 0.48 | 0.58 | 0.67 | 0.77 | 0.86 | 2,830 | 734 |
9 | 10° tip | 0.17 | 0.22 | 0.28 | 0.33 | 0.39 | 0.44 | 0.50 | 0.55 | 0.66 | 0.77 | 0.88 | 0.99 | 2,461 | 365 |
9 |
Fastest | 0.19 | 0.26 | 0.32 | 0.39 | 0.45 | 0.52 | 0.58 | 0.65 | 0.78 | 0.91 | 1.04 | 1.17 | 2,096 | |
10 | Full | 0.16 | 0.21 | 0.27 | 0.32 | 0.37 | 0.43 | 0.48 | 0.53 | 0.64 | 0.75 | 0.85 | 0.96 | 2,830 | 610 |
10 | 10° tip | 0.18 | 0.25 | 0.31 | 0.37 | 0.43 | 0.49 | 0.55 | 0.61 | 0.74 | 0.86 | 0.98 | 1.10 | 2,461 | 241 |
10 |
Fastest | 0.20 | 0.27 | 0.34 | 0.41 | 0.48 | 0.54 | 0.61 | 0.68 | 0.82 | 0.95 | 1.09 | 1.22 | 2,220 | |
12 | Full | 0.19 | 0.26 | 0.32 | 0.38 | 0.45 | 0.51 | 0.58 | 0.64 | 0.77 | 0.90 | 1.02 | 1.15 | 2,830 | 396 |
12 | 10° tip | 0.22 | 0.29 | 0.37 | 0.44 | 0.52 | 0.59 | 0.66 | 0.74 | 0.88 | 1.03 | 1.18 | 1.32 | 2,461 | 26 |
12 |
Fastest | 0.22 | 0.30 | 0.37 | 0.45 | 0.52 | 0.60 | 0.67 | 0.74 | 0.89 | 1.04 | 1.19 | 1.34 | 2,435 | |
14 | Full | 0.22 | 0.30 | 0.37 | 0.45 | 0.52 | 0.60 | 0.67 | 0.75 | 0.90 | 1.05 | 1.19 | 1.34 | 2,830 | 215 |
14 | 10° tip | ||||||||||||||
14 |
Fastest | 0.24 | 0.32 | 0.40 | 0.48 | 0.57 | 0.65 | 0.73 | 0.81 | 0.97 | 1.13 | 1.29 | 1.45 | 2,615 | |
15 | Full | 0.24 | 0.32 | 0.40 | 0.48 | 0.56 | 0.64 | 0.72 | 0.80 | 0.96 | 1.12 | 1.28 | 1.44 | 2,830 | 135 |
15 | 10° tip | ||||||||||||||
15 | Fastest | 0.25 | 0.34 | 0.42 | 0.50 | 0.59 | 0.67 | 0.76 | 0.84 | 1.01 | 1.18 | 1.34 | 1.51 | 2,695 |
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