4.2.7.5. (1) Except as provided in Sentence (2), the storage of flammable
liquids and combustible liquids
in storage areas specified in Clause 4.2.7.2.(1)(d) shall (a)  conform to Table 4.2.7.A. (i)  where it consists of palletized or solid piled storage, or (ii)  where stored in racks in buildings not protected in conformance with Article 4.2.7.7., or (b)  conform to Table 4.2.7.B. where stored in racks in buildings
protected in conformance with Article 4.2.7.7. (2) Where a building is designed for the storage of flammable liquids or combustible liquids, there is no limit on the total quantity of storage per fire compartment
provided (a)  the building
is separated from adjacent buildings by (i)  a firewall
having a fire-resistance rating of at least 4 h, or (ii)  spatial separation in conformance with the Building Code, and (b)  in protected rack
storage, the quantities in each individual storage area do not exceed those specified in Table 4.2.7.B. (3) Where containers for two or more liquids having different flash points are stored together in a single individual storage area, the maximum quantity permitted in the individual storage area shall equal that permitted for the liquid with the lowest flash point. (4) If two or more classes of liquids are stored in a single fire compartment, the total quantities of stored liquids shall meet the requirements of the following equation: [qIA/QIA + qIB/QIB + qIC/QIC + qII/QII + qIIIA/QIIIA]rack + [qIA/QIA + qIB/QIB + qIC/QIC + qII/QII + qIIIA/QIIIA]solid pile or pallet ≤ 1 where qIA, IB or IC  = the actual quantity of Class IA, IB or IC liquid present in a rack, solid pile or on pallets, qII  = the actual quantity of Class II liquid present in a rack, solid pile or on pallets, qIIIA  = the actual quantity of Class IIIA liquid present in a rack, solid pile or on pallets, QIA, IB or IC  = the maximum quantity of Class IA, IB or IC liquid permitted in Table 4.2.7.A. or 4.2.7.B. for the arrangement, QII  = the maximum quantity of Class II liquid permitted in Table 4.2.7.A. or 4.2.7.B. for the arrangement, and QIIIA  = the maximum quantity of Class IIIA liquid permitted in Table 4.2.7.A. or 4.2.7.B. for the arrangement. Table 4.2.7.A. Indoor Container Storage (Palletized or Solid Piled Storage and Unprotected Rack Storage)   Forming Part of Article 4.2.7.5.  Class of Liquid   Storage Level   Protected Storage (1) - Maximum Quantity per Individual Storage Area, L   Protected Storage (1) -Maximum Storage Height, m   Protected Storage (1) - Maximum Quantity per Fire Compartment, L   Unprotected Storage  - Maximum Quantity per  Individual Storage Area, L   Unprotected Storage  - Maximum Storage Height, m   Unprotected Storage - Maximum Quantity per Fire Compartment, L 

  Class IA   First Storey   10000   1.5   50000   2500   1.5   2500 

  Class IA   Storeys above the first storey   7500   1.5   30000   2500   1.5   2500 

  Class IA   Basement   Not permitted   Not permitted   Not permitted   Not permitted   Not permitted   Not permitted 

  Class IB or IC   First Storey   20000   2.0   60000   10000   1.5   10000 

  Class IB or IC   Storeys above the first storey   10000   2.0   50000   10000   1.5   10000 

  Class IB or IC   Basement   Not permitted   Not permitted   Not permitted   Not permitted   Not permitted   Not permitted 

  Class II   First Storey and storeys above the first storey   40000   3.0   100000   15000   3.0   30000 

  Class II   Basement   25000   1.5   25000   Not permitted   Not permitted   Not permitted 

  Class IIIA   First Storey and storeys above the first storey   60000   6.0   200000   50000   4.5   100000 

  Class IIIA   Basement   40000   3.0   100000   Not permitted   Not permitted   Not permitted  Notes to Table 4.2.7.A.: (1) See Article 4.2.7.7. table 4.2.7.b. Indoor Container Storage (Protected Rack Storage)(1) Forming Part of Article 4.2.7.5.  Class of Liquid   Storage Level   Maximum Height, m   Maximum Quantity per Individual Storage Area or per Fire Compartment, L 

  Class IA   First Storey   7.5   30000 

  Class IA   Storeys above the first storey   4.5   17000 

  Class IA   Basement   Not permitted   Not permitted 

  Class IB or IC   First Storey   7.5   60000 

  Class IB or IC   Storeys above the first storey   4.5   35000 

  Class IB or IC   Basement   Not permitted   Not permitted 

  Class II   First Storey   7.5   100000 

  Class II   Storeys above the first storey   7.5   100000 

  Class II   Basement   4.5   35000 

  Class IIIA   First Storey   12.0   200000 

  Class IIIA   Storeys above the first storey   6.0   200000 

  Class IIIA   Basement   6.0   100000 Notes to Table 4.2.7.B.: (1) See Article 4.2.7.7. Spill control