A standard can be defined as a set of technical definitions and guidelines, “how to” instructions for designers, manufacturers, and users. Standards promote safety, reliability, productivity, and efficiency in almost every industry that relies on engineering components or equipment. Standards can run from a few paragraphs to hundreds of pages, and are written by experts with knowledge and expertise in a particular field who sit on many committees.
Following standards is voluntary, as compared to codes, which are mandatory and carry force of law. The same organizations that develop standards also have procedures to accredit manufacturers that follow their standards.
Standards are a major source of information for designers, providing a look at best practices and successful design processes. Reviewing standards allows designers to benefit from the wisdom and experience of others, rather than reinvent the wheel each time.
Bonny Osif, "Make It Safe and Legal" from Integrating Information into the Engineering Design Process.
Covers engineering disciplines including: aerospace, biomedical, chemical, civil, and environmental.
If you cannot find an applicable standard through the ASTM Digital Library, you may look into other standards organizations. These sites can help you locate standards applicable to your project:
NSF International: The Public Health and Safety Organization
The resources above help you identify appropriate standards. Note the publication information (title, date, reference number, organization, etc.). Then, contact your professor or faculty advisor. They should be able to provide access to the standard.