A nonprofit organization which serves as a national clearinghouse and provides a way for developing and approving standards supported by national consensus. The website will identify the titles of standards and provide information, but the standard itself often has to be purchased.
NSF International offers consumer protection by certifying products and writing standards for food water and consumer goods. As an independent, not-for-profit organization, their ongoing public health commitment is to encourage everyone to live safer.
U.S. General Services Administration; Alphabetic, numeric and classed lists of specifications, standards and qualified products used throughout federal government.
Many government agencies issue standards as regulations or separate publications. Finding these is hard. Standards issued as regulations are published in the Federal Register and the Code of Federal Regulations (CFR).
Calling the local office of the agency or searching the Monthly Catalog of United States Government Publications, available on the Internet via the Catalog of U.S. Government Publications may be productive. Search for STANDARDS.