Author: Beverly Glass

Demonstration of Capability (DOC), BOD5

Reference Method (with revision number and effective date)_________________________________________________
SOP number (with revision number and effective date)______________________________________________________

DOC Type: Initial Ongoing

Reason(s) for this DOC:
New Method
Change to Procedure
New Analyte Added to SOP
New Instrument
New Analyst
Annual demonstration (Ongoing)

DOC Data Source:
(What procedure did you use to perform this study?)
Proficiency Testing Study (unknown to lab and analyst) Study ID: ___________
Actual Sample (e.g. effluent; sample with know typical conc. range)
QC Sample (e.g. Lab Control Sample, Lab Fortified Blank, CCV)
Note: the QC may be analyzed concurrently or over a series of days
Monitor Trends (e.g. review of control charts)
Target Analyte(s)___________________________________________________________________________
Matrix____________________________________________________________________________________
Instrument Name (with ID #, Model #, and Serial #)________________________________________________
Prep Technique____________________________________________________________________________
Prep Analyst Name(s) (print)__________________________________________________________________
Reported Units (values must be recorded in same units)____________________________________________
Summary Chart:
Mean_________ %Recovery _________%, Std Deviation of Recovered Values_________, Relative Std Deviation__________%
Analyst Name (print) Analyst Signature Approval Date
Reviewer/Supervisor Name (print) Reviewer/Supervisor Signature Approval Date

Pass
Fail

Seed Control	SC1	SC 2	SC 3
Bottle #
Initial DO (B1)
Final DO (B2)
Oxygen Demand B1-B2)f
Demand/Volume
mL of seed used in dilutions
Results

CBOD Standard	Blank	GGA 1	GGA 2	GGA 3	GGA 4
Bottle #
Initial DO (D1)
Final DO (D2)
Oxygen Demand (D1-D2)
Depletion Due to Seed (B1-B2)f	***
Net Depletion (D1-D2)- (B1-B2)f	***
Demand (Vol/ 300mL)
Results

Created 1/16/2020, BLG
Revised 5/16/24