Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Resources: Standard Operating Procedures (SOPs)

SOP No.SOP/Job Aid Title and DateLinks
1Preparation of Calibration Certificates
May 2019
**Job Aids: Calibration Certificate Review Checklist Template DOCX | PDF
Calibration Certificate Sample Mass DOCX | PDF
DOCX
PDF
2Applying Air Buoyancy Corrections
May 2019
DOCX
PDF
3Weighing by Double Substitution Using an Equal-Arm Balance
1986
PDF
4Weighing by Double Substitution
May 2019
**Job Aids: SOP 4 Calibration-DWright V28 EXCEL
DOCX
PDF
5Using a 3-1 Weighing Design (IR5672)
May 2019
**Job Aids: SOP 5 Calibration-DWright V18 EXCEL | SOP 5-Control Chart DWright V03 EXCEL
DOCX
PDF
6Weighing By Transposition
1986
PDF
7Weighing by Single Substitution Using a Single Pan Mechanical Balance, a Full Electronic Balance, or a Balance with Digital Indications and Built in Weights
May 2019
**Job Aids: SOP 7 Calibration-DWright V13 EXCEL
DOCX
PDF
8Medium Accuracy Calibrations of Mass Standards by Modified Substitution
May 2019
**Job Aids: SOP 8 Calibration-DWright V08 EXCEL | OWM OJT Mentoring Worksheet Form PDF |
SOP 8 Modified Substitution With Learning Objectives (20190506) PDF
DOCX
PDF
9Control Charts for Calibration of Mass Standards
May 2019
**Job Aids: Mass Control Chart-DWright V02* EXCEL
DOCX
PDF
10Calibration of Rigid Rules
Oct 2014
DOC
PDF
11Calibration of Metal Tapes, Bench Method
Oct 2014
DOC
PDF
12Calibration of Steel Tapes, Tape-to-Tape Method
Oct 2014
DOC
PDF
13Calibration of Volumetric Ware, Gravimetric Method
Nov 2006
DOC
PDF
14Gravimetric Calibration of Volumetric Ware Using an Electronic Balance
May 2019
**Job Aids: Gravimetric Troubleshooting PDF | GravCal Option A EXCEL | GravCal Option B EXCEL | SOP 14 Calibration-DWright V36 EXCEL
DOCX
PDF
15Calibration of Intermediate and Large Volume Standards Gravimetric Method Using an Equal-Arm Balance
Nov 2006
DOC
PDF
16Calibration of Measuring Flasks, Volume Transfer Method
May 2019
DOCX
PDF
17Control Charts of Laboratory Owned Check Standards
May 2019
**Job Aids:  Volume Control Chart Template EXCEL | Volume Control Chart-DWright V02 EXCEL
DOCX
PDF
18Calibration of Graduated Neck-Type Metal Volumetric Field Standards, Volumetric Transfer Method
May 2019
**Job Aids: YouTube Video
DOCX
PDF
19Calibration of Large Neck-Type Metal Provers, Volume Transfer Method
May 2019
Job Aids: YouTube Video | SOP 19 Calibration-DWright V34 EXCEL | OWM OJT Mentoring Worksheet PDF |
SOP 19 Volume Transfer Graduated Provers With Learning Objectives (20190716) PDF
DOCX
PDF
20Standard Deviation and Range Charts
May 2019
**Job Aids:  Volume Control Chart Template EXCEL | Volume Control Chart-DWright V02EXCEL
DOCX
PDF
21Calibration of LPG Provers
May 2019
**Job Aid:  SOP 21 Calibration-DWright V05 EXCEL
DOCX
PDF
22Calibration of Traffic Speed Guns and Tuning Forks
May 2019
DOCX
PDF
23Calibrations of PI Tapes Bench Method
Oct 2014
DOC
PDF
24Calibration of Field Standard Stopwatches
May 2019
**Job Aids Drafts: SOP 24 Control Chart-DWright V02 EXCEL | SOP 24 Calibration-DWright V09 EXCEL
DOCX
PDF
26Gravimetric Calibration of Dynamic Volumetric Systems used as Standards
May 2019
DOCX
PDF
27Calibration of Railroad Test Cars (Mass)
May 2019
DOCX
PDF
28

Using Advanced Weighing Designs (IR5672)
May 2019
**Job Aids: IR5672 Equations EXCEL
Advanced Mass Control Chart-DWright V01* EXCEL
Additional Uncertainty Calculations Designs (06-04-2020) EXCEL

Here is a link to a catalog of weighing designs.

DOC
PDF
29Assignment of Uncertainty
May 2019
**Job Aids: Uncertainty Template EXCEL |
Uncertainty Budget Tables PDF
SOP 29 Worksheet DOC | SOP 29 Worksheet EXCEL
Uncertainty Budget Template EXCEL
Uncertainty Evaluation Form DOCX | PDF
DOCX
PDF
30Process Measurement Assurance Program
May 2019
**Job Aids: Measurement Assurance System Inventory EXCEL | Statistical Summary for Chart and Data Analysis EXCEL
Measurement Assurance System Assessment (2010) DOC | PDF
DOCX
PDF
31Scale Plate Calibration for Volumetric Field Standards
May 2019
**Job Aids: SOP 31 Calibration-DWright V07 EXCEL
DOCX
PDF
33Calibration of Weights Carts
May 2019
**Job Aids: SOP 33 Calibration-DWright V14 EXCEL
DOCX
PDF
34Selection and Use of Sensitivity Weights and Tare Weights in Weighing Procedures
June 2019
DOCX
PDF
49Calibration of Environmental Monitoring Standards by Direct Comparison
May 2019
**Job Draft Aids: SOP 49 Worksheet EXCEL
DOCX
PDF
52Verification and Adjustment of Digital Conductivity Meter and Measuring Water Conductivity
June 2019
DOCX
PDF
*File must have .xltx extension in order to work properly.
Instructions to Convert an XLSX/XLS file to XLTX/XLT template using Microsoft Excel
1. Open Microsoft Excel.
2. Click "File" in the top menu bar and select "Open."
3. Click "File" again and select "Save As."
4. Give the file a name and select a save location, then click the "Save as type" drop-down menu and choose the "Excel Template (*.xlt)" option.
5. Click "Save" to save your XLSX/XLS document to XLTX/XLT format.

 ** Notice to users:  job aids version dates are as listed and may or may not have been published before the latest current SOP version. Users should please update SOP references in the job aids as you utilize the job aids.


Back to Documentary Standards and Resources

Contacts

Created January 27, 2010, Updated March 10, 2025