Title:
AVIATION FUEL FREE WATER TEST PAPER, PREPARATION METHOD THEREFOR AND DETECTION DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/007948
Kind Code:
A1
Abstract:
The present invention relates to the technical field of aerospace, and in particular, to an aviation fuel free water test paper, a preparation method therefor and a detection device thereof. The test paper comprises filter paper, potassium ferricyanide loaded on the surface of the filter paper, and a mixture of ferrous sulfate and a chelating agent. The preparation method for the aviation fuel free water test paper comprises: infiltrating the filter paper into a K3[Fe(CN)6] solution, and then drying to obtain intermediate test paper; and coating the surface of the intermediate test paper with a powder mixture of FeSO4 and the chelating agent. The aviation fuel free water test paper provided by the present invention has the following advantages: the detection method is simple and convenient, easy to operate, free of specialization and instruments, convenient to use, capable of detecting with naked eyes, intuitive, concise, rapid and efficient; the detection sensitivity is high; the effective service life is long, whether failure occurs or not can be easily determined by means of visual color change, and the detection reliability is improved; and the production cost is lower.
Inventors:
LIU HUA (CN)
XIA ZUXI (CN)
WANG WENWU (CN)
XIANG HAI (CN)
ZHOU NING (CN)
ZENG TAI (CN)
XIA ZUXI (CN)
WANG WENWU (CN)
XIANG HAI (CN)
ZHOU NING (CN)
ZENG TAI (CN)
Application Number:
PCT/CN2021/105477
Publication Date:
January 13, 2022
Filing Date:
July 09, 2021
Export Citation:
Assignee:
THE SECOND RES INSTITUTE OF CAAC (CN)
International Classes:
D21H27/08; D21H17/66; D21H19/38; D21H19/44; D21H21/14; G01N21/78
Foreign References:
| CN111851144A | 2020-10-30 | |||
| CN106990105A | 2017-07-28 | |||
| CN201392317Y | 2010-01-27 | |||
| CN1113981A | 1995-12-27 | |||
| CN111077036A | 2020-04-28 | |||
| US3066211A | 1962-11-27 |
Attorney, Agent or Firm:
BEIJING ZHIRAN LAW FIRM (CN)
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