Circular of the National Bureau of Standards, Issue 440 |
What people are saying - Write a review
We haven't found any reviews in the usual places.
Contents
| 536 | |
| 540 | |
| 541 | |
| 543 | |
| 546 | |
| 551 | |
| 554 | |
| 562 | |
| 64 | |
| 79 | |
| 91 | |
| 113 | |
| 126 | |
| 127 | |
| 146 | |
| 160 | |
| 165 | |
| 177 | |
| 178 | |
| 184 | |
| 190 | |
| 191 | |
| 201 | |
| 208 | |
| 214 | |
| 217 | |
| 223 | |
| 227 | |
| 232 | |
| 241 | |
| 257 | |
| 259 | |
| 260 | |
| 261 | |
| 272 | |
| 279 | |
| 284 | |
| 295 | |
| 296 | |
| 298 | |
| 310 | |
| 314 | |
| 316 | |
| 323 | |
| 324 | |
| 326 | |
| 336 | |
| 340 | |
| 347 | |
| 349 | |
| 350 | |
| 353 | |
| 365 | |
| 398 | |
| 400 | |
| 402 | |
| 405 | |
| 406 | |
| 408 | |
| 409 | |
| 411 | |
| 429 | |
| 430 | |
| 433 | |
| 434 | |
| 435 | |
| 436 | |
| 445 | |
| 447 | |
| 450 | |
| 455 | |
| 463 | |
| 470 | |
| 480 | |
| 482 | |
| 534 | |
| 535 | |
| 563 | |
| 564 | |
| 584 | |
| 586 | |
| 587 | |
| 588 | |
| 589 | |
| 590 | |
| 591 | |
| 592 | |
| 593 | |
| 594 | |
| 595 | |
| 596 | |
| 597 | |
| 599 | |
| 601 | |
| 602 | |
| 603 | |
| 604 | |
| 605 | |
| 606 | |
| 607 | |
| 608 | |
| 609 | |
| 610 | |
| 612 | |
| 613 | |
| 614 | |
| 624 | |
| 625 | |
| 626 | |
| 632 | |
| 641 | |
| 642 | |
| 643 | |
| 644 | |
| 647 | |
| 648 | |
| 650 | |
| 652 | |
| 657 | |
| 658 | |
| 662 | |
| 663 | |
| 664 | |
| 666 | |
| 670 | |
| 671 | |
| 672 | |
| 673 | |
| 674 | |
| 676 | |
| 677 | |
| 679 | |
| 680 | |
| 683 | |
| 690 | |
| 691 | |
| 692 | |
| 694 | |
| 696 | |
| 702 | |
| 703 | |
| 704 | |
| 762 | |
| 766 | |
| 781 | |
| 800 | |
Other editions - View all
Common terms and phrases
acetate acid added addition alcohol alkaline allowed amount analysis angle applied approximately bath beam boiling calculated carbon cell Chem chloride color complete concentration conductance constant containing cooled copper correction crystals described determined dextrose dilute direct dissolved distilled effect electrode equal equation excess FIGURE filter filtrate flask given gives glass glucose heat hydrochloric acid indicator invert sugar iodine lead length levulose light liquid liter material means measurements method methyl minutes mixed mixture molasses necessary normal observed obtained optical oxide percent percentage placed plane plate polarization potassium precipitate prepared present prism procedure pure quantity reaction reading reducing reference removed rotation salt sample scale separated shown sirup sodium solution specific standard substance sucrose sulfate taken temperature tion titration tube usually volume washed weight yield
Popular passages
Page 382 - NOTE. — For the purpose of interpreting these specifications the following definitions apply: The total length is the over-all length of the finished instrument. The diameter is that measured with a ring gage. The length of the bulb is the distance from the bottom of the bulb to the beginning of the enamel backing. The top of the thermometer is the top of the finished instrument.
Page 158 - If the analyst is in doubt as to the completion of the hydrolysis, allow a portion of the solution to remain for several hours and again polarize. If there is no change from the previous reading, the inversion is complete, and the reading and temperature of the solution should be carefully noted.
Page 181 - Titrate at once with the thiosulphate solution until the brown tinge has become weak, then add sufficient starch liquor to produce a marked blue coloration. Continue the titration cautiously until the color due to free iodin has entirely vanished.
Page 768 - ... to test the correctness of saccharimeters ; for those who execute commercial analyses, the repeated control of the instruments is to be accomplished, now as before, by quartz plates. 4. In effecting the polarization of substances containing sugar, half-shade instruments, or triple field, only are to be employed.
Page 177 - By consulting the table it will be seen that the vertical column headed 150 is nearest to Z, 145, and the horizontal column headed 95 : 5 is nearest to the ratio of R to I, 95.1 : 4.9.
Page 782 - ... not imported to be commercially used for the extraction of sugar, or for human consumption...
Page 776 - After bringing the solution exactly to the mark at the proper temperature, and after wiping out the neck of the flask with filter paper, pour all of the wellshaken clarified sugar solution on a rapidly acting filter. Reject the first portions of the filtrate and use the rest, which must be perfectly clear for polarization.
Page 667 - If the number is less than 1, make the characteristic of the logarithm negative, and one unit more than the number of zeros between the decimal point and the first significant figure of the given number.
Page 789 - ... test of the importation and also the quantity and test of each lot from which such average test is obtained.
Page 787 - Receptacles — How sampled. — Sugar in hogsheads and other wooden packages shall be sampled by putting the long trier diagonally through the package from chime to chime, one trierful to constitute a sample, except in small lots, when an equal number of trierfuls shall be taken from each package to furnish the required amount of sugar necessary to make a sufficient sample. In the sampling of baskets, bags, seroons, and mats the short trier shall be used, care being exercised to have each sample...
Bibliographic information
| Title | Circular of the National Bureau of Standards, Issue 440 Circular of the National Bureau of Standards, United States. National Bureau of Standards Issue 440 of National Bureau of Standards Circular, United States. National Bureau of Standards |
| Author | United States. National Bureau of Standards |
| Publisher | U.S. Government Printing Office, 1942 |
| Original from | the University of Michigan |
| Digitized | 16 Oct 2006 |
| Export Citation | BiBTeX EndNote RefMan |