(ii) the applicant shall provide adequate space having regard to the nature and number of samples of medical devices proposed to be tested and evaluated: PROVIDED that the approving authority shall determine from time to time whether the space provided continues to be adequate; (iii) if it is intended to carry out tests requiring the use of animals, the applicant shall provide for an animal house and comply with the following requirements:— (a) the animal house shall be adequate in area, well lighted and properly ventilated and the animals undergoing tests shall be kept in air conditioned area; (b) the animals shall be suitably housed in hygienic surroundings and necessary provisions made for removal of excreta and foul smell; (c) the applicant shall provide for suitable arrangements for preparation of animal feed; (d) the applicant shall provide for suitable arrangements for quarantining of all animals immediately on their arrival in the institution; (e) the animals shall be periodically examined for their physical fitness;