Labor legislation consists of statutes, regulations, and jurisprudence governing the relations between capital and labor, by providing for certain employment standards and a legal framework for negotiating, adjusting and administering those standards and other incidents of employment.
This definition provides the divisions of labor legislation i.e. labor standards and labor relations. These two are not mutually exclusive but rather, they complement each other.
For academic purposes though, distinction should be made between labor standards and labor relations. But in actuality, they overlap each other such that the grievance machinery is a labor relations matter but very often the subject of the complaint is labor standards such as unpaid overtime work or a disciplinary action.