Method for measuring volume of catalytic converter carrier

Abstract

The invention discloses a method for measuring volume of a catalytic converter carrier. The measurement method specifically comprises the following steps: 1, completely putting an irregular catalytic converter carrier into an underwater container filled with water, so as to enable the water in the container to overflow; and 2, titrating to supplement the lost water in the container due to overflowing by a titration apparatus, and recording the water amount consumed by titration so as to measure the volume of the catalytic converter carrier. The method for measuring the volume of the catalytic converter carrier is simple and rapid, the volume of the irregular catalytic converter carrier is measured without collecting the overflowing water in a mode of supplementing the overflowing water through titration, the volume influence of a preservative film is eliminated by putting the preservative film into water before titration, and both the measurement accuracy and efficiency are high.

Description

technical field [0001] The invention relates to the field of catalytic converter carriers, in particular to a method for measuring the volume of a catalytic converter carrier. Background technique [0002] In order to implement the "Environmental Protection Law of the People's Republic of China" and the "Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution", protect the environment, safeguard human health, prevent and control motor vehicle emission pollution, and standardize platinum (Pt) and palladium (Pd) in automotive ceramic catalytic converters ), rhodium (Rh) content determination method, the Ministry of Environmental Protection of the People's Republic of China formulated "HJ509-2009 Determination of Platinum, Palladium and Rhodium in Automotive Ceramic Catalytic Converters-Inductively Coupled Plasma Emission Spectrometry and Inductively Coupled Plasma Mass Spectrometry Law standard. [0003] In the standard, the precious metal...

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Problems solved by technology

[0005] In the standard "HJ509-2009 Determination of Platinum, Palladium and Rhodium in Automotive Ceramic Catalytic Converters - Inductively Coupled Plasma Emission Spectrometry and Inductively Coupled Plasma Mass Spectrometry", the method for measuring irregularly shaped catalytic converter carriers is provided. There are some problems in the volume method: the volume of the plastic wrap itself cannot be deducted; a small part of the overflowing water will seep down along the container wall and adhere to the container wall, and cannot be collected completely, thus affecting the determination of the volume of the catalytic converter carrier , if the volume of the catalytic converter carrier is small, the error will be larger

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