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Laboratory method to determine termite-resistance of plastics

机译：测定塑料抗白蚁性的实验室方法

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There is no standardized methodology worldwide to assess the resistance of plastic materials to subterranean termites in both the laboratory and the field. However, the development of new plastic materials always necessitates the reliable comparison between new and existing products. Early studies by Gay and Wetherly and Watson indicated that laboratory evaluations with Australian termite species were effective for comparing the resistance of various plastics to termites and could reproduce the termite-susceptibility of plastics in the field test by others . However, they were forced to sacrifice the relatively large quantity of termites. A new method in which plastic samples were exposed to a nest of Coptotermes formosanus Shiraki was proposed and proved applicable to the evaluation of comparative termite-resistance . Existing Japanese standardized laboratory methods were proved to be unsuitable for evaluating the termite-resistance of plastics in any form . One of the modified Japanese standardized methods that were applicable to evaluating termite-resistance of plastics would not sacrifice many termites, and it was possible to standardize the method to compare the termite-resistance of non-woody materials with or without chemical treatment as shown in Figs. 1 and 2. The termite density of 24 workers/cm~2 foraging area was high enough for C. formosanus to cause visible attack on straight face .
机译：在实验室和现场，全世界都没有标准化的方法来评估塑料对地下白蚁的抵抗力。但是，新塑料材料的开发总是需要在新产品和现有产品之间进行可靠的比较。 Gay and Wetherly和Watson的早期研究表明，对澳大利亚白蚁物种进行实验室评估可有效比较各种塑料对白蚁的抵抗力，并可以在其他人的田间试验中重现塑料对白蚁的敏感性。但是，他们被迫牺牲相对大量的白蚁。提出了一种将塑料样品暴露于白蚁白蚁巢中的新方法，并被证明可用于评估白蚁相对抗性。事实证明，现有的日本标准化实验室方法不适用于评估任何形式的塑料的抗白蚁性。一种适用于评估塑料白蚁抵抗力的经修改的日本标准化方法之一，不会牺牲很多白蚁，并且有可能通过标准化方法来比较经过或未经过化学处理的非木质材料的白蚁抵抗力，如图2所示。无花果参见图1和2。24工人/ cm〜2的觅食区白蚁密度足够高，足以使台湾白。在直面上造成可见的侵袭。

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