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                                <gmi:MI_Instrument xmlns:gmi="http://www.isotc211.org/2005/gmi" xsi:schemaLocation="http://www.isotc211.org/2005/gmi https://data.noaa.gov/resources/iso19139/schema.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" uuid="b3d74130-702e-11e0-a1f0-0800200c9a66">
  <gmi:citation>
    <gmd:CI_Citation xmlns:gmd="http://www.isotc211.org/2005/gmd">
      <gmd:title>
        <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
          Sea-Bird Electronics  Sensor
        </gco:CharacterString>
      </gmd:title>
      <gmd:date gco:nilReason="unknown" xmlns:gco="http://www.isotc211.org/2005/gco"/>
      <gmd:identifier>
        <gmd:MD_Identifier>
          <gmd:code>
            <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
              SBE 18
            </gco:CharacterString>
          </gmd:code>
        </gmd:MD_Identifier>
      </gmd:identifier>
      <gmd:citedResponsibleParty>
        <gmd:CI_ResponsibleParty>
          <gmd:organisationName>
            <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
              Sea-Bird Electronics, Inc.
            </gco:CharacterString>
          </gmd:organisationName>
          <gmd:contactInfo>
            <gmd:CI_Contact>
              <gmd:phone>
                <gmd:CI_Telephone>
                  <gmd:voice>
                    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
                      425-643-9866
                    </gco:CharacterString>
                  </gmd:voice>
                  <gmd:facsimile>
                    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
                      425-643-9954
                    </gco:CharacterString>
                  </gmd:facsimile>
                </gmd:CI_Telephone>
              </gmd:phone>
              <gmd:address>
                <gmd:CI_Address>
                  <gmd:deliveryPoint>
                    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
                      13431 NE 20th Street
                    </gco:CharacterString>
                  </gmd:deliveryPoint>
                  <gmd:city>
                    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
                      Bellevue
                    </gco:CharacterString>
                  </gmd:city>
                  <gmd:administrativeArea>
                    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
                      WA
                    </gco:CharacterString>
                  </gmd:administrativeArea>
                  <gmd:postalCode>
                    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
                      98005
                    </gco:CharacterString>
                  </gmd:postalCode>
                  <gmd:country>
                    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
                      USA
                    </gco:CharacterString>
                  </gmd:country>
                  <gmd:electronicMailAddress>
                    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
                      seabird@seabird.com
                    </gco:CharacterString>
                  </gmd:electronicMailAddress>
                </gmd:CI_Address>
              </gmd:address>
            </gmd:CI_Contact>
          </gmd:contactInfo>
          <gmd:role>
            <gmd:CI_RoleCode codeList="http://www.ngdc.noaa.gov/metadata/published/xsd/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="resourceProvider" codeSpace="001">
              resourceProvider
            </gmd:CI_RoleCode>
          </gmd:role>
        </gmd:CI_ResponsibleParty>
      </gmd:citedResponsibleParty>
    </gmd:CI_Citation>
  </gmi:citation>
  <gmi:identifier>
    <gmd:MD_Identifier xmlns:gmd="http://www.isotc211.org/2005/gmd">
      <gmd:code>
        <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
          SBE 18
        </gco:CharacterString>
      </gmd:code>
    </gmd:MD_Identifier>
  </gmi:identifier>
  <gmi:type>
    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
      pH
    </gco:CharacterString>
  </gmi:type>
  <gmi:description>
    <gco:CharacterString xmlns:gco="http://www.isotc211.org/2005/gco">
      The SBE 18 pH Sensor uses a pressure-balanced glass-electrode /Ag/AgCl-reference pH probe to provide in-situ measurements at depths up to 1200 meters (3900 ft). The replaceable pH probe is permanently sealed and is supplied with a soaker bottle attachment that prevents the reference electrode from drying out during storage. The sensor and associated interface electronics is a modular, self-contained package that is easy to install, service, and calibrate.
    </gco:CharacterString>
  </gmi:description>
</gmi:MI_Instrument>