Is conceptual framework a reporting standard?

Not exactly. The FASB conceptual framework sets the general philosophies that the specific reporting standards are based on. For example, the framework establishes that the accrual basis of accounting should be used; the idea that expenses should be matched with the corresponding revenues (the Matching Principle), the Principle of Conservatism, etc. The specific reporting standards generally work inside this framework, unless doing so would mislead financial statement users.