Method for making standard grade difference color guide for ash discharge at mouth and neck of canister
A production method and technology of color guides, which are applied in the direction of testing respiratory protection devices and life-saving equipment, etc., can solve the problems of no longer applicable and large changes in the whiteness value of color guides, etc., and achieve the effect of uniform pumping force and good support effect
Active Publication Date: 2018-02-27
SHANXI XINHUA CHEM
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Problems solved by technology
[0007] After many years, the whiteness value of the currently used color guide has changed greatly, and it is no longer applicable
Method used
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[0056] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0057] A method for manufacturing a standard color guide for ash discharge at the mouth and neck of a canister, comprising the following steps:
[0058] (1) Preparation of carbon powder
[0059] 1a. Grind activated carbon or impregnated carbon in a sample preparation machine to obtain carbon powder with a mesh size of 300 or less.
[0060] 1b. Take about 5g of charcoal powder and grind it fully in an agate mortar.
[0061] 1c. Pour the ground charcoal powder into a beaker, add a small amount of pure water for preliminary dispersion, then transfer to a 2000mL measuring cylinder, fill up the measuring cylinder with pure water, stir the glass rod thoroughly, and then oscillate with ultrasonic waves for 20 minutes to achieve uniform suspension.
[0062] 1d. Stand still for 1 hour, use the siphon method to take the carbon powder suspension above ...
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Abstract
The invention relates to the field of chemical engineering detection, in particular to a manufacturing method for a canister mouth neck ash exhausting standard graduation shade guide. The manufacturing method includes the following steps that 1, carbon powder is prepared, that is, carbon powder micro particles with the granularity smaller than 10 microns are prepared; 2, carbon powder standard liquid is prepared, that is, 0.01mg / mL carbon powder standard liquid is prepared; 3, a filtering paper sheet is selected and prepared, that is, the filtering paper sheet used for making the shade guide is selected and cut; 4, a standard curve is made, that is, a whiteness degree-additive carbon powder quality standard curve is made, and the I-grade theoretical whiteness degree and the II-grade theoretical whiteness degree are determined; 5, the shade guide is made, that is, standby shade guides are made, the whiteness degree is determined, and the shade guide is screened out according to the theoretical whiteness degree, processed and stored. The standard graduation shade guide high in accuracy can be made through the method and meets the requirements of a canister mouth neck ash exhausting performance test.
Description
technical field [0001] The invention relates to the field of chemical detection, in particular to a method for manufacturing a color guide plate for ash discharge standard at the mouth and neck of a poison canister. Background technique [0002] The mouth and neck ash discharge test of the canister is to blow soot on the canister with pulsed air flow, and the blown dust is collected on a filter cardboard disc with a certain area. (hereinafter referred to as the color guide) to compare the color of the disc, and judge whether the ash discharge performance of the canister is qualified according to the chromaticity level of the filter cardboard disc. The air entering the canister should be a pulsed air flow, simulating the breathing conditions of a human being, and the gas flow rate and breathing rate are required to be similar to those of a human being in moderate activity. The circular filter paper used to collect the sample to be tested must be of the same quality as the fi...
Claims
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IPC IPC(8): A62B27/00
Inventor 胡玉良黑春霞温维丽张素红徐玲张重杰刘羽迅赵卯青秦牡丹元以栋
Owner SHANXI XINHUA CHEM