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The mark shown below is to certify
that the wood packaging material that before
the mark has been subjected to an approved
measure. |
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The mark should at minimum include
the: |
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Symbol
ISO two letter country code
followed by a unique number assigned by the NPPO to the producer of the wood packaging
material, who is responsible for ensuring
appropriate wood is used and properly marked
IPPC abbreviation according to
Annex I for the approved measure used (e.g.HT,MB) |
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APPROVED MEASURES ASSOCIATED WITH
WOOD PACKAGING MATERIAL |
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Heat treatment (HT) |
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Wood packaging material should be
heated in accordance with a specific
time-temperature schedule that achieves a
minimum wood core temperature of 56º C for a
minimum of 30 minutes.
Kiln-drying (KD), chemical pressure
impregnation (CPI), or other treatment may be
considered HT treatment to the extent that
these meet the HT specifications. For
Example, CPI may meet the HT specifications
through the use of steam ,hot water ,or dry
heat.
Heat treatment is indicated by the
mark HT. (see Annex II) |
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Methyl bromide (MB) fumigation for
wood packaging material |
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The wood packing material should
material should be fumigated with methyl
bromide. The treatment is indicated by the
mark MB. The minimum standard for methyl
bromide fumigation treatment for wood
packaging material is as follows: |
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ANNEX |
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Temperature
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Dosage rate
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Minimum concentration (g/m3)
at |
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0.5hrs. |
2hrs. |
4hrs. |
16hrs |
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21º C or above |
48 |
36 |
24 |
17 |
14 |
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16 ºC or above |
56 |
42 |
28 |
20 |
17 |
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11ºC or above |
64 |
48 |
32 |
22 |
19 |
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The minimum temperature should not
be less than 10 Deg C and the minimum exposure
time should be 16 hours. |
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List of most significant pests
targeted by HT and MB |
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Members of the following pest groups
associated ,with wood packaging material are
practically eliminated by HT and MB
treatment in accordance with specifications
listed above. |
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Pest group |
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Insects |
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Anobidae |
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Bostrichidae |
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Buprestidae |
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Cerambycidae |
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Curculioidae |
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Isoptera |
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Lyctidae (with some
exceptions for HT)
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Oedemeridae |
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Scolytidae |
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Siricidae |
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Nematodes |
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Bursaphelenchus
xylophilus |
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A minimum core temperature of 56ºC
for a minimum of 30 min. is chosen in
consideration of the wide range of pests for
which this combination is documented to be
lethal and a commercially feasible treatment. Although it is recognized that
some pests are known to have a higher
thermal tolerance quarantine pests in this
category are managed by NPPOs on a case by
case basis.
Certain countries require that the
minimum commodity temp should be higher. |
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