# US 2014/0190239 A1 · Corrosive environment monitoring apparatus and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190239 A1 - Document ID: US20140190239A1 - Status: Published application - Kind: A1 - Application number: 14/239,851 - Filed: 2011-09-20 - Published: 2014-07-10 - Earliest claimed: 2011-09-20 - Assignees: Hitachi, Ltd. - Inventors: Rintaro Minamitani - Web page: https://patentgrep.com/patent/US20140190239A1 ## CPC - G01N 33/0004: {Gaseous mixtures, e.g. polluted air} - G01N 17/002: {Test chambers} - G01N 17/006: {of metals} - G01N 17/043: {Coupons} - G01N 17/046: {Means for supporting or introducing coupons} - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) ## Abstract An object of the present invention is to provide a corrosive environment monitoring apparatus and a corrosive environment monitoring method for evaluating the corrosiveness of an ambient environment simply and accurately in a short time period. The corrosive environment monitoring apparatus (1) of this invention has at least one vent duct (3a, 3b, 3c) in which specimens (2a, 2b, 2c) are installed so that the corrosiveness of the ambient environment is measured from the corroded conditions of the specimens (2a, 2b, 2c). The regions of the specimens (2a, 2b, 2c) in one vent duct (3a, 3b, 3c), which are subject to measurement, are made of the same metallic material. If a plurality of vent ducts (3a, 3b, 3c) are provided, these vent ducts (3a, 3b, 3c) are arranged in parallel with one another. ## Claims ### Claim 1 A corrosive environment monitoring apparatus comprising at least one vent duct in which a specimen is installed, the corrosive environment monitoring apparatus adapted to measure the corrosiveness in an ambient environment from the corroded condition of the specimen, wherein the specimen has a region subject to the measurement formed in the vent duct, the region being made of the same metallic material, and wherein, if a plurality of vent ducts are provided, the vent ducts are arranged in parallel with one another. ### Claim 2 A corrosive environment monitoring apparatus comprising one or more vent ducts in which specimens are installed, the corrosive environment monitoring apparatus adapted to measure the corrosiveness in an ambient environment from the corroded condition of the specimens, wherein the each specimen has a region subject to the measurement, the region being made of the same metallic material, and wherein the longitudinal direction of each of the regions subject to the specimen measurement formed in the vent ducts is in parallel with or along the direction in which a corrosive substance in the ambient environment passing through the vent ducts flows. ### Claim 3 (depends on 1) The corrosive environment monitoring apparatus according to claim 1, further comprising feeding means which feeds a corrosive substance in the ambient environment to the region subject to the specimen measurement placed in the vent duct. ### Claim 4 (depends on 3) The corrosive environment monitoring apparatus according to claim 3, wherein the feeding means is a fan located downstream of the flow of the corrosive substance around the specimen in the vent duct. ### Claim 5 (depends on 1) The corrosive environment monitoring apparatus according to claim 1, wherein the metallic material is copper or silver. ### Claim 6 (depends on 1) The corrosive environment monitoring apparatus according to claim 1, wherein the region subject to the specimen measurement is measured for the degree of corrosion in at least two locations along the direction in which the corrosive substance flows, so that the corrosiveness in the ambient environment is acquired based on how the measured degrees of corrosion are distributed. ### Claim 7 (depends on 1) The corrosive environment monitoring apparatus according to claim 1, wherein there are a plurality of the specimens in the one vent duct, and wherein the regions subject to the specimen measurement are arranged opposite or adjacent to one another. ### Claim 8 (depends on 1) The corrosive environment monitoring apparatus according to claim 1, wherein the region subject to the specimen measurement has planes exposed to the ambient environment, the planes being arranged perpendicularly. ### Claim 9 A corrosive environment monitoring method in which at least one vent duct having a specimen installed thereon is provided and the corrosiveness in an ambient environment is measured from the corroded condition of the specimen, wherein monitoring is performed by installing the specimen having a region subject to the measurement formed in one vent duct or a plurality of vent ducts arranged in parallel with one another, the region being made of the same metallic material. ### Claim 10 A corrosive environment monitoring method in which one or more vent ducts each having a specimen installed thereon are provided and the corrosiveness in an ambient environment is measured from the corroded condition of the specimens, wherein the each specimen has a region subject to the measurement formed in the vent duct, the region being made of the same metallic material, and wherein monitoring is performed by installing the specimens in such a manner that the longitudinal direction of each of the regions subject to the measurement is in parallel with or along the direction in which a corrosive substance in the ambient environment passing through the vent ducts flows. ### Claim 11 (depends on 9) The corrosive environment monitoring method according to claim 9, wherein a corrosive substance in the ambient environment is forcibly fed to the region subject to the specimen measurement formed in the vent duct. ### Claim 12 (depends on 11) The corrosive environment monitoring method according to claim 11, wherein the corrosive substance in the ambient environment is sucked from downstream of the flow of the corrosive substance around the specimen and is fed to the region subject to the specimen measurement. ### Claim 13 (depends on 9) The corrosive environment monitoring method according to claim 9, wherein the metallic material is copper or silver. ### Claim 14 (depends on 9) The corrosive environment monitoring method according to claim 9, wherein the region subject to the specimen measurement is measured for the degree of corrosion in at least two locations along the direction in which the corrosive substance flows, so that the corrosiveness of the ambient environment is acquired based on how the measured degrees of corrosion are distributed. ### Claim 15 (depends on 9) The corrosive environment monitoring method according to claim 9, wherein there are a plurality of the specimens in the one vent duct, and wherein the regions subject to the specimen measurement are arranged opposite or adjacent to one another for monitoring. ### Claim 16 (depends on 9) The corrosive environment monitoring method according to claim 9, wherein the region subject to the specimen measurement has planes exposed to the ambient environment, the planes being arranged perpendicularly for monitoring.