Resources

• American Measuring Tool Manufacturers Association
  

  www.amtma.com
  Email: amtma@amtma.com
  Phone: 440-974-6829

• American National Standards Institute (ANSI)

  www.ansi.org
  Email: info@ansi.org
  Phone: 202-293-802

• ASME (formerly American Society of Mechanical Engineers)
  

  www.asme.org
  Email: infocentral@asme.org
  Phone: 800-843-2763 or 973-882-1170

• ASTM International (formerly American Society for
  Testing and Materials)

  www.astm.org
  Phone: 610-832-9585

• National Institute of Standards & Technologies (NIST)

  www.ts.nist.gov
  Email: owm@nist.gov
  Phone: 301-975-4004

• National Voluntary Laboratory Accreditation Program (NVLAP)

  http://ts.nist.gov/Standards/214.cfm
  Email: NVLAP@nist.gov
  Phone: 301-975-4016

• National Laboratory Accreditation Cooperation

  www.nacla.net
  Email: secretariat@nacla.net
  Phone: 321-275-0610
  

• International Laboratory Accreditation Cooperation
  

  www.ilac.org
  Email: ilac@nata.asn.au

• Instrument Society of America (ISA)

  www.isa.org
  Email: info@isa.org
  Phone: 919-549-8411

• International Organization for Standardization (ISO)
  

  www.iso.org

• ACLASS

  www.aclasscorp.com
  Email: info@aclasscorp.com
  Phone: 877-344-3044 or 703-351-9139

• Canadian Standards Association (CSA)
  

  www.csa.ca
  Phone: 800-463-6727 or 416-747-4000

• Standards Council of Canada
  

  www.scc.ca
  Email: info@scc.ca
  Phone: 613-238-3222

• National Association for Proficiency Testing (NAPT)

  www.proficiency.org
  Email: napt@proficiency.org
  Phone: 763-525-1488

• Surface Gravity Calculator

  www.ngs.noaa.gov/cgi-bin/grav_pdx.prl

• Understanding Measurement Uncertainty

  http://physics.nist.gov/cuu/Reference/contents.html

• US Geodetic Survey

  www.usgs.gov
  Email: nationalmap@usgs.gov

• Download Conversion Calculator