Before the 2016 edition of NFPA 13, the commodity classification of liquors and spirits up to 100 proof (50% alcohol content) in glass bottles (up to 3.8 litres) in cartons such as cognacs, whiskeys, rums, vodkas, etc. were considered as:
- Class III if stored in racks (note b of Table A.18.104.22.168 page 13-274)
- Class IV if stored palletized
BUT in the NFPA 13 - 2016 edition, alcoholic beverages are classified up to 20 % alcohol: Class I or II depending on the packaging combustibility.
Beverages with % alcohol > 20% and <50% do not appear any more.
So then in NFPA 30 edition 2015, flowchart Figure 16.4.1(c), you find:
- Other than rack storage (PAL or PIL): Class IV
- Rack storage -> Table 22.214.171.124: Scheme A container up to 16 oz (0.5 litre), cartoned or Scheme B container up to 1 gal (3.8 litre)
So if my undertanding is correct, for rack storage of liquors in 1 litre glass bottles in carton, we had a class III 1 year ago and we have to protect it now with a NFPA30 Scheme B design, i.e. horizontal barriers and IRAS underneath in each tier. And this is a huge difference !
Could you please tell me if my understanding is correct ? do you have another solution ? How to protect a warehouse storing these liquors ?
Thank you in advance for your contribution to the discussion.