Figure D-6. Water sample bottles. 



2. The sample bottle for oxygen detennina- 

 tion by the regular Winkler titration method 

 is the amber glass bottle, 250 ml., ground glass 

 stoppered. 



3. The sample bottle for oxygen determina- 

 tion by the Micro titration method is the Erl- 

 meyer Flask, 125 ml., with a ground glass 

 stopper. 



4. The sample bottle for oxygen determina- 

 tion by the Gas Chromatography method is the 



glass serima bottle, 60 ml., with a nibber serum 

 stopper. 



5. The sample bottle for nutrient, pH, and 

 alkalinity determination is the Polyethelene 

 Boston Round Narrow Mouth bottle, 6 oz. (180 

 ml.), with screw cap. 



One sea water sample bottle for eaich. deter- 

 mination to be made should be placed in the 

 Nansen bottle rack compartment beneath each 

 Nansen bottle. 



D-6 



