T/ZAAM 0001-2021 Interior parts and materials evaluation method for passenger cars: dilution method

Scope

Scope: This document specifies the test environment, test instruments and materials, test personnel, test procedures, and reporting requirements for the evaluation of odors from interior components and materials of passenger cars. This document is applicable to the detection and evaluation of odors from interior components and materials of passenger cars using the dilution method. Main technical content: This standard includes a complete set of odor evaluation methods using the dilution method and related requirements for equipment and personnel. It also includes the general process for establishing method limits, which is suitable for the effective conversion of existing odor evaluation standards to this method. The method includes requirements for the experimental environment, experimental equipment, and personnel involved in odor evaluation, including gas collection devices and gas evaluation devices used in the experiment. The experimental process includes various procedures such as sample offline requirements, sample packaging requirements, sample sampling requirements, sample pretreatment, cleaning of sample gas bags, sample odor cultivation, sample gas collection and dilution, sample evaluation, and processing of evaluation data. Among these, the method proposes an algorithm based on the relationship between gas intensity and concentration for establishing limits. Innovatively, the method replaces multiple levels of subjective evaluation with a selective evaluation method for determining whether there is odor, simplifying the expression of odor evaluation, greatly reducing the difficulty of subjective selection for odor evaluators, reducing the subjectivity of evaluation, and improving the consistency, accuracy, and scientificity of data; optimizing the traditional bottle odor evaluation method, enabling the use of the same evaluation method for odor evaluation of materials, components, and entire vehicles; reducing experimental errors in odor evaluation an

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