TM 10-6630-245-13&P Table 2-1.  Preventive Maintenance Checks and Services for WQAS-PM - Continued. Location Item Item To Be No. Interval Check/Service Procedure Not Fully Mission Capable If: 8 After Spectrophotometer k.  Inspect turbidity meter cards for k.  There is not at least one unmarred, (continued)         damage. undamaged scale. l.  Inspect percent transmittance l.  There is not at least one unmarred, absorbance meter cards for damage. undamaged scale. m.  Inspect batteries for quantity, damage.   m.  Less than quantity of eight.  Batteries Remove batteries if reuse of unit is not    not sealed, batteries deteriorated. planned within two weeks. n.  Make sure battery pack cable is disconnected (para 2.6.2.3.b). o.  Make sure that alternate line voltage plug is in storage well. 9 Monthly Chemicals and a.  Inspect pH Indicator Solution for a.  Less than one half-full bottle.  Shelf Supplies quantity, current shelf life, leaking life expired.  Leakage is evident (until container, readable label. cleaned up and replaced).  Contents unidentifiable. b.  Inspect Fluoride Standard Solution for b.  Bottle less than 25% full.  Shelf life quantity, current shelf life, leaking expired.  Leakage is evident (until container, readable label. cleaned up and replaced).  Contents unidentifiable. c.  Inspect SPADNS Fluoride Reagent c.  Bottle less than 25% full.  Shelf life Solution for quantity, current shelf life, expired.  Leakage is evident (until leaking container, readable label. cleaned up and replaced).  Contents unidentifiable. d.  Inspect Mercuric Potassium (Nessler d.  Bottle less than 25% full.  Shelf life Reagent) Solution for quantity, current expired.  Leakage is evident (until shelf life, leaking container, readable cleaned up and replaced).  Contents label. unidentifiable. e.  Inspect Rochelle Salt Solution for e.  Bottle less than 25% full.  Shelf life quantity, current shelf life, leaking expired.  Leakage is evident (until container, readable label. cleaned up and replaced).  Contents unidentifiable. f.  Inspect Sulfate Test Reagent powder f.  Shelf life expired.  Leakage of pillows pillows for current shelf life, damaged is evident (until cleaned up and pillows, readable label. replaced).  Contents unidentifiable. g.  Inspect Nitrate Test Reagent powder g.  Shelf life expired.  Leakage of pillows pillows for current shelf life, damaged is evident (until cleaned up and pillows, readable label. replaced).  Contents unidentifiable. h.  Inspect Ferrous Iron Reagent powder h.  Shelf life expired.  Leakage of pillows pillows for current shelf life, damaged is evident (until cleaned up and pillows, readable label. replaced).  Contents unidentifiable. i.  Inspect Iron Reagent powder pillows i.  Shelf life expired.  Leakage of pillows (for 5 ml sample) for current shelf life, is evident (until cleaned up and damaged pillows, readable label. replaced).  Contents unidentifiable. 2-9