中國對《使用介電加熱的木材熱處理》的正式反對意見

1、中國對使用介電加熱的木材熱處理的正式反對意見China formally objects to adopting the draft standard of <DRAFT ANNEX TO ISPM 28: Heat treatment of wood using dielectric heating (2007-114)>國際植保公約秘書處：To the Secretariat of the International Plant Protection Convention:中國認(rèn)為，目前通過使用介電加熱的木材熱處理不合適，建議CPM12會議上暫不通過此標(biāo)準(zhǔn)，待詳細(xì)試驗(yàn)結(jié)果驗(yàn)證后

2、，再通過此標(biāo)準(zhǔn)。理由如下：China believes that now is not yet the time to adopt “DRAFT ANNEX TO ISPM 28: Heat treatment of wood using dielectric heating (2007-114)”. We suggest that this standard should not be adopted at the CPM12 meeting temporarily and should only be adopted after the test results are verified.

3、 The reasons are as follows:1. 標(biāo)準(zhǔn)的目標(biāo)限定物是“wood”，但所參考的文獻(xiàn)中，是加工后的木條、木片的實(shí)驗(yàn)數(shù)據(jù)，木條、木片和原木有很大差別，原木的直徑要比木片大，不能將木條、木片的試驗(yàn)結(jié)果用于“wood”上。1. The object of this standard is “wood”, but in the references, the test data are about processed wood bars and wood chips. Wood bars and wood chips are greatly different from cru

4、de wood, the diameter of crude wood is larger than wood chips, so the test results of wood bars and wood chips are not applicable to “wood”.2、目前，中國在遼寧省大連市建立了首套工業(yè)化微波介電加熱檢疫處理設(shè)備（見圖1、2、3），整套設(shè)備已建設(shè)好，正處于試驗(yàn)和調(diào)整階段。設(shè)備采用的是560KW，915MHZ的高能微波，處理艙體積為15m×4m×3m，利用此設(shè)備對國際貿(mào)易原木進(jìn)行了試驗(yàn)。2. Presently, China has esta

5、blished the first set of industrial microwave dielectric heating equipments for quarantine treatment in Dalian City, Liaoning Province, (see Fig. 1, 2 and 3). The entire set of equipments (560KW, 915MHZ high-energy microwaves) has been built and is now in the test and commission stage. The volume of

6、 treatment chamber is 15m × 4m × 3m, and this set of equipments has been used to test crude wood in international trade. 試驗(yàn)情況和結(jié)果如下：The treatment is conducted and results are followed.處理原木：品種為南方黃松（Pinus sp.），直徑為35cm±5cm，含水率30-50%，長度6m，鋸為長度85cm的木段進(jìn)行試驗(yàn)。Treated wood: variety Pinus sp., di

7、ameter 35cm ± 5cm, moisture content 30-50% and length 6m. Cut the wood into 85cm-long wood blocks (short-cut wood) for testing.處理時間：使用微波介電加熱原木，原木最低溫度達(dá)到60時，保溫處理1min，三組試驗(yàn)結(jié)果如下：Treatment time: heat the wood using microwave dielectric heating and maintain1min when the minimum temperature reaches 60.

8、 The test results of the three groups are as follows:表1 微波介電熱處理南方黃松（Pinus sp.）中松材線蟲處理效果Table 1 Effect of heat treatment of Bursaphelenchus xylophilus in Pinus sp using microwave dielectric heating 對照樣品中松材線蟲條數(shù)Number of Bursaphelenchus xylophilus in contrast samples處理后樣品中松材線蟲存活條數(shù)Number of live Bursaph

9、elenchus xylophilus in treated samples死亡率Mortality rate (%)60（1）1796226318499.8260（2）1042979246499.7660（3）6089610100上述數(shù)據(jù)是運(yùn)用介電加熱設(shè)備處理原木的前期試驗(yàn)結(jié)果。The above data are the results of pre-stage test of wood treated with the dielectric heating equipment.3. 本標(biāo)準(zhǔn)中所提出的60 1min，不能完全有效殺死國際貿(mào)易原木中的松材線蟲。建議CPM12會議上，暫時不通過

10、此標(biāo)準(zhǔn)，應(yīng)使用國際貿(mào)易用途原木進(jìn)行試驗(yàn)驗(yàn)證。中國目前已建成大型微波介電加熱處理設(shè)備，并且正在進(jìn)行深入試驗(yàn)，待驗(yàn)證后，可提供相關(guān)試驗(yàn)數(shù)據(jù)。3. Bursaphelenchus xylophilus in wood in international trade cannot be killed under the condition of 60 1min proposed in this standard. We suggest that this standard should not be adopted at the CPM12 meeting temporarily and wood for international trade should be tested for verification. China has now established a set of large-size microwave dielectric heating equipments and is carrying out in-depth tests and can provide relevant test data after being verified.圖1 工業(yè)化微波介電加熱檢疫處理設(shè)備Fig. 1 Indus