NIST Handbook 44 - 2012 Edition
http://www.nfpa.org/catalog/product.asp?link_type=buy_box&pid=3096&icid=A647
http://www.nfpa.org/catalog/product.asp?link_type=buy_box&pid=30A96&icid=A647
http://www.nfpa.org/catalog/product.asp?link_type=buy_box&pid=7096SB&icid=A647
Reference materials - Taxi Meters
http://www.nist.gov/pml/wmd/h44-12.cfm"
http://www.moga.mo.gov/statutes/c413.htm
Reference materials - LPG Meters
http://www.nist.gov/pml/wmd/h44-12.cfm
http://moga.mo.gov/statutes/c323.htm
Reference materials - NH3 Meters
http://www.moga.mo.gov/statutes/c266.htm
Reference materials - LNG/CNG Meters
http://www.nfpa.org/codes-and-standards/document-information-pages?mode=code&code=52
http://www.moga.mo.gov/statutes/c323.htm
http://www.moga.mo.gov/statutes/c414.htm
Reference materials - Non-Petroleum mass flow meters
Reference materials - Scales
Reference materials - Grain Moisture Meters
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