标准编号：ISO 3218:2014
中文名称：香精油 命名原则
英文名称：Essential oils — Principles of nomenclature
发布日期：2014-08
标准范围
moulding materials intended for processing by injection or direct compression moulding.Specimens of types A and B are tensile test specimens from which, with simple machining, specimensfor a variety of other tests can be taken (see Annex A). Because they have such wide utility, these tensilespecimens are referred to in this International Standard as multipurpose test specimens.The principal advantage of a multipurpose test specimen is that it allows all the test methods mentionedin Annex A to be carried out on the basis of comparable mouldings. Consequently, the propertiesmeasured are coherent as all are measured with specimens in the same state. In other words, it can beexpected that test results for a given set of specimens will not vary appreciably due to unintentionallydifferent moulding conditions. On the other hand, if desired, the influence of moulding conditions and/ordifferent states of the specimens can be assessed without difficulty for all of the properties measured.For quality-control purposes, the multipurpose test specimen can serve as a convenient source offurther specimens not readily available. Furthermore, the fact that only one mould is required may beadvantageous.The use of multipurpose test specimens is to be agreed upon by the interested parties, because there maybe significant differences between properties of the multipurpose test specimens and those specified inthe relevant test methods.
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