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Nihon Superior Issues Reassurance of Product Radiation Levels Since the Japanese Earthquake

Mar 27, 2012

Measurements of radiation levels at Osaka Distribution Center

Measurements of radiation levels at Osaka Distribution Center

 Nihon Superior Co. Ltd., a supplier of advanced soldering materials to the global market, announces that it is able to report measurements of radiation levels to provide reassurance that products shipped from its distribution center in Toyanaka City, Osaka do not present any risk to its customers.

Since the Fukushima No 1 nuclear plant was damaged by the earthquake and consequent tsunami on March 11, 2011, Nihon Superior has been monitoring radiation levels of all goods received into and dispatched from the distribution center.

Results for the six months from September 2011 to February 2012 are tabulated below:
• Average value: 0.063 μSv/h (Sept 2011 to Feb 2012)
• Minimum value: 0.036 μSv/h (Sept. 15, 2011 10 a.m., fair weather)
• Maximum value: 0.090 μSv/h (Jan. 26, 2012 10 a.m., fair weather) 

Monthly
           Unit:(μSv/h)
Measurement Date
Nihon Superior
Osaka Distribution Center
Osaka Prefectural Institute of Public Health※1

ICRP Publ. 103※2

Average
Minimum
Maximum
Average

Sept 2011
0.052
0.036
0.079
0.080
0.11 μSv/h
(1mSv/Year)
Oct 2011
0.062
0.044
0.086
0.079

Nov 2011
0.064
0.049
0.081
0.078

Dec 2011
0.060
0.050
0.083
0.080

Jan 2012
0.069
0.047
0.090
0.082

Feb 2012
0.072
0.059
0.083
0.076

※1: Osaka Prefectural Institute of Public Health: Air levels were measured with the instrument 1m above the ground.  Measurements were made at 10 a.m. every day until December 27, 2011 and then every 2nd Wednesday.
  
※2: ICRP Publication 103
      The 2007 Recommendations of the International Commission on Radiological Protection
     Dose Limits in normal exposure:0.11 μSv/h (1mSv/year)

Measurements were made in accordance with the International Commission on Radiological Protection (ICRP) and results were checked for consistency with those obtained by the Osaka Prefectural Institute of Public Health. 

It is clear from these results that throughout the entire period since the earthquake, radiation levels for goods passing through the Osaka Distribution Center have stayed below the ICRP limits for normal exposure.

Nihon Superior will continue to monitor radiation levels to provide its customers with an assurance of the safety and reliability of its products.


For more information, visit http://www.nihonsuperior.co.jp/english/news/news.php/183/.


About Nihon Superior Co., Ltd.
Nihon Superior was founded in 1966 when it began marketing unique flux products imported from the US. The company made its mark on society by gathering the most advanced soldering and brazing technologies and products from around the world, and supplying them to companies in the metal-joining industry. A turning point for the company came when it started developing its own soldering materials and with the success of its unique SN100C lead-free solder alloy Nihon Superior has become a major player in the global market. To support the growing demand for its products, Nihon Superior has established manufacturing and sales centers in Japan, China and other Asian countries, and the United States, and formed business partnerships with companies in other markets.

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