Special packing provision PP100:
For UN Nos. 1309, 1323, 1333, 1376, 1408, 1435, 1449, 1457, 1472, 1476, 1483, 1509, 1516, 1567, 1869, 2210, 2793, 2858, 2878, 2950, 2968, 3089, 3096 and 3125 flexible, fibreboard or wooden packagings shall be sift-proof and water-resistant or shall be fitted with a sift-proof and water-resistant liner.