Odor evaluation method for automobile part material by threshold method

Abstract

The invention discloses an odor evaluation method for an automobile part material by a threshold method, which is characterized in that firstly, sampling evaluation methods of the part material are counted, the difference of odor evaluation modes of the part material is solved, odor difference comparison of products of different levels is facilitated, and the transfer of odor intensity among the products of different levels is facilitated to be obtained; secondly, sampling and environmental treatment refer to original conditions and can be compared with an original method, meanwhile, samplingand environment treatment conditions can be adjusted as required at any time without influencing the use of the method; thirdly, the odor evaluation personnel can use the method to train, so that thecapability screening of the odor evaluation personnel is increased, and the capability consistency and stability of the odor evaluation personnel are ensured; fourthly, the original rating descriptionwith difficulty in multi-language description and sensory definition is converted into the judgment whether the smell can be identified or not, so that the evaluation difficulty is reduced, and the data reliability is improved; and fifthly, a blank blind sample is used in the test, so that the credibility of experimental data is improved.

Description

technical field [0001] The invention belongs to the field of auto parts, and in particular relates to an odor evaluation method of an auto part material threshold method. Background technique [0002] The odor evaluation of auto parts materials is currently carried out in the form of subjective ratings by personnel. At present, there is no unified national standard, only group standards and automobile enterprise standards. After the parts and materials are stored in a closed container at a certain temperature, a trained odor evaluator will conduct an olfactory evaluation of the sample gas in the closed container, and score according to the odor intensity shown in the odor grade evaluation table, Table 1 Odor grade evaluation The table is quoted from T / CMIF 12-2016 "Standards for Odor Evaluation of Auto Parts and Materials". [0003] Odor intensity rating scale original description Level 1 Odorless, hardly noticeable level 2 Odor, Perceptible, Slight...

AI Technical Summary

Problems solved by technology

For personnel engaged in multiple standard odor evaluations, it is not possible to switch between different states like equipment to adapt to different standards, which will cause interference between evaluations

[0006] 2. Each odor standard requires the evaluators to score 0.5 or more detailed according to the description of the odor grade evaluation table. The unclear definition of the odor grade will cause relatively large errors in the subjective evaluation of the evaluators.

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