5. VISUAL INSPECTIONThe batteries shall be inspected visually to ensure that they are free from any remarkable deformation, crack or any other defects.6. CHECKING OF MATERIALS,CONSTRUCTION,PACKING AND MARKINGThe batteries shall be checked for conformity with the relevant requirements of the materials, construction, packing and marking.7. CHECKING OF DIMENSIONSDimensions of the battery shall be checked for their conformity with the relevant requirements.8. CHECKING THE SPECIFIC GRAVITY OF THE ELECTROLYTEThe specific gravity of the electrolyte is checked by means of the hydrometer on a fully-charged battery.For inspection purposes only, a provision of inspection holes of the batteries of sealed design can be carefully cut through the cover outside the venting channels.