Beckman pH Meter

Beckman pH Meter (HM2BX7)

Location: Pasadena, CA 91106 Los Angeles County
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Country: United States of America
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N 34° 8.352', W 118° 7.583'

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Inscription

National Historic Chemical Landmark - 1934

Arnold O. Beckman developed the first commercially successful
electronic pH meter while a member of the faculty of the
California Institute of Technology. This rugged and portable
"acidimeter," which had all necessary components housed in a
single unit, allowed scientists to measure acidity accurately and
rapidly. It immediately met an important need of the California
citrus industry: how to measure the pH of lemon juice. The
innovative features of the pH meter, including an early use of
integrated electronic technology, were the basis for subsequent
modern instrumentation developed by Beckman and Beckman
Instruments.
Details
HM NumberHM2BX7
Tags
,
Year Placed2004
Placed ByAmerican Chemical Society
Marker ConditionNo reports yet
Date Added Wednesday, October 3rd, 2018 at 11:01am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)11S E 396148 N 3778163
Decimal Degrees34.13920000, -118.12638333
Degrees and Decimal MinutesN 34° 8.352', W 118° 7.583'
Degrees, Minutes and Seconds34° 8' 21.12" N, 118° 7' 34.98" W
Driving DirectionsGoogle Maps
Area Code(s)626, 310, 323
Closest Postal AddressAt or near 400 S Wilson Ave, Pasadena CA 91106, US
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