Accounting policy

Sources of estimation uncertainty

Inventory Dec 31,  Dec 31,
  2012 2011
Finished products 26,013 28,985
Production materials, etc. 14,396 15,614
Inventory as of December 31 40,409 44,599

Inventories recognized as cost of sold products during the period amounted to SEK 212,469 (219,946) billion.

Increase (decrease) in allowance for inventory obsolescence 2012 2011
Allowance for inventory obsolescence as of December 31, preceding year 2,624 3,382
Increase in allowance for inventory obsolescence charged to income 456 (213)
Scrapping (390) (264)
Translation differences (92) (23)
Reclassifications, etc. 13 (258)
Allowance for inventory obsolescence as of December 31 2,611 2,624