On the basis of the findings and suggestion to procure the various measuring instruments and standards for

• Mass standards laboratory
• Volume standards laboratory
• Pressure standards laboratory
• Length and Dimensional standards laboratory
• Thermometry laboratory

Emphasis is laid on the infrastructure such as appropriate accommodation and the measuring rooms in which the various laboratories are housed and the precision instruments will be installed and the standards artifacts are proposed to be stored. All the rooms must have controlled environmental conditions, such as given in the following table:

Measures are needed for vibrational insulation and influences from temperature fluctuations. Separate air-conditioning system may be installed in all the measuring rooms. Alternately the location of the laboratories may be organized/restructured in such a way so that a composite air-conditioning system with separate Air Handling Units (AHUs) exhausting the air at different temperatures for the different parameters could be installed.

• Additional insulation of the walls, roof and flooring of rooms is desired.
• Shielding of the rooms against temperature radiation form the rooms walls, windows by means of an enclosure of the instruments, which could be made from simple insulating and transportable wall elements. This chamber simultaneous serves the purpose of shielding the instruments from direct air current when doors are open.
• The air stream from the air-conditioning system may be directed from the ceiling to the floor (or as advised by air-conditioning expert)
• Cold light sources with filters against thermal and infrared radiation may be used to minimize the heating by the luminaries.
• Lights/luminaries may be located in the areas close to the outgoing air outlets.
• All major instruments generating large heat may be equipped with the hot air exhaust pipe.
• Lights in the measuring room should be just sufficient to provide prescribed illumination and should not be switched on and switched off in order to guarantee a maximum consistency of room's climate
• Installation of easy to service dust filters in the air-conditioning system and generating of a slight over pressure in the measuring rooms is desirable
• Automatic shoe cleaning machine, and using overshoes, and dust adhesive mats at the entry door may also be installed. Entry to the measuring rooms should be restricted.
• Measuring rooms should have air-locks at the entry door
• Preparation of job for calibration (measurement, e.g. dispatching, cleaning etc. should be done outside the measuring rooms/anterooms maintained at a reasonably comfort temperature (say 0 to +2°C over and above the temperature in the measuring room)

• Supply of electric power to measuring rooms and to the measuring instruments should be made through a separate feeder line and processing units, in order to avoid voltage drops and voltage surges. Additionally, a voltage conditioner/uninterrupted power supply system is recommended.
• A separate air compressor with appropriate ratings and all the required accessories to separate, water, dust may be installed so that dry, clean and controlled pressure air can be supplied to the pneumatic systems of the instruments (if there are any in the measuring rooms). However a dedicated air supply line may be provided in each measuring rooms for air cleaning.