TM 10-6630-245-13&P
CHAPTER 2.
OPERATING INSTRUCTIONS
Page
Section I.
Description and Use of Operator' s Controls and Indicators .................................
2-1
2.1
Spectrophotometer Controls and Indicators .........................................................
2-2
Section II.
Preventive Maintenance Checks and Services (PMCS)........................................
2-4
2.2
General ................................................................................................................
2-4
2.3
PMCS Procedures ...............................................................................................
2-4
Section III.
Operation Under Usual Conditions........................................................................
2-11
2.4
Assembly and Preparation for Use .......................................................................
2-11
2.5
Initial Adjustments, Checks and Self-Tests ..........................................................
2-11
2.6
Operating Procedures ..........................................................................................
2-11
2.6.1
General Techniques for Test Procedures .............................................................
2-11
2.6.1.1
Planning the Test .................................................................................................
2-12
2.6.1.2
Cleaning Glassware .............................................................................................
2-12
2.6.1.3
Handling and Storing Reagents ...........................................................................
2-13
2.6.1.4
Collecting Water Samples ...................................................................................
2-13
2.6.1.5
Mixing ..................................................................................................................
2-14
2.6.1.6
Using Graduated Cylinders...................................................................................
2-14
2.6.1.7
Using Pipets .........................................................................................................
2-15
2.6.1.8
Titrating................................................................................................................
2-16
2.6.1.9
Sources of Error ..................................................................................................
2-16
2.6.2
Operation of Spectrophotometer...........................................................................
2-17
2.6.2.1
Tests Using Spectrophotometer ...........................................................................
2-17
2.6.2.2
Spectrophotometer Features ................................................................................
2-17
2.6.2.3
Power Conversion ................................................................................................
2-19
2.6.2.4
Meter Scale Cards................................................................................................
2-21
2.6.2.5
Warm Up..............................................................................................................
2-21
2.6.2.6
Zeroing the Spectrophotometer ...........................................................................
2-21
2.6.2.7
Using the Spectrophotometer ..............................................................................
2-22
2.6.3
Acidity Test Kit ....................................................................................................
2-24
2.6.4
Ferric Iron Test Kit ...............................................................................................
2-24
2.6.5
Chloride Test Kit, High Range ..............................................................................
2-25
2.6.6
Dissolved Oxygen Test Kit ...................................................................................
2-25
2.6.7
Zinc Test Kit ........................................................................................................
2-26
2.6.8
Water Quality Analysis Procedures .....................................................................
2-26
2.6.8.1
Free Acidity Test, High Range ..............................................................................
2-26
2.6.8.2
Free Acidity Test, Low Range ..............................................................................
2-27
2.6.8.3
Total Acidity Test, High Range ............................................................................
2-28
2.6.8.4
Total Acidity Test, Low Range .............................................................................
2-29
2.6.8.5
Ferric Iron Test, High Range ...............................................................................
2-30
2.6.8.6
Ferric Iron Test, Low Range ................................................................................
2-32
2.6.8.7
Chloride Test, High Range ...................................................................................
2-33
2.6.8.8
Dissolved Oxygen Test.........................................................................................
2-34
2.6.8.9
Zinc Test, High Range .........................................................................................
2-40
2.6.8.10
Zinc Test, Low Range...........................................................................................
2-41
2.6.8.11
Fluoride Test, SPADNS Method ...........................................................................
2-42
2.6.8.12
Ferrous Iron Test .................................................................................................
2-45
2.6.8.13
Total Iron Test ......................................................................................................
2-46
2.6.8.14
Nitrogen Ammonia Test........................................................................................
2-48
2-1
