I really don't know of specific requirements for laboratory environments. The standards require that the environments be adequate for the work being done in them. This means you choose temperature (actual and stability), humidity, cleanliness, etc. based on the level and type of calibration being performed. And you need to monitor your environment.
There are recommendations. The best is NCSLI RP-14 Guide to Selecting Standards Laboratory Environments. They have suggestions based on types of work performed. Other documents include ISO 554 and ISA-RP52.1.
A suggestion is to evaluate the specifications of the equipment used in your lab. There are normally environmental ranges attached to the tolerances, and if you go beyond these you must account for environmental contributors to your uncertainties. If you can stay within the environmental requirements of your equipment it will save you a lot of work compensating for it.