American Society for Testing and Materials - www.astm.org
Handbooks 44,130, 133 etc. - www.ncwm.net/publications
National Conference on Weights & Measures - www.ncwm.net
National Institute for Standards and Technology - www.nist.gov
National Type Evaluation Program - www.ncwm.com/ntep-about
Southern Weights & Measures Association - www.swma.org
West Virginia Public Service Commission - www.psc.state.wv.us
West Virginia Department of Environmental Protection - www.dep.wv.gov
West Virginia Fire Marshal & State Fire Commission - www.firemarshal.wv.gov