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Paragraph 5 APPARATUS

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5.1

Distillation apparatus. See Method 2.

5.2

Apparatus for determination of ammoniacal nitrogen. An example of the recommended apparatus is reproduced in Figure 6 in the Appendix.

5.3

Apparatus for determination of ureic nitrogen by the urease method (7.6.1). An example of the recommended apparatus is reproduced in Figure 7 in the Appendix.

5.4

Rotary shaker: 35-40 turns per minute.

5.5

pH meter.

5.6

Sintered glass crucibles, diameter of pores 5 to 15 microns.