IOS Inc.
The Brewer experts
Important:
SETDATE: Automatic date correction in the OP_ST.### file before running the Brewer software. 
01.12.2005.
Calibration information tables. 09.12.2005.
How to find calibration information 25.01.2006.
Brewer operating software v3.76b 26.08.2008.
GWBasic: A help file. 12.12.2005.
Calibrations in 2021:
| Location | Country | Instruments | Month in 2021 | Julian days | Dates |
| Hradec_Kralove | Czech_Republic | May | May 1st-May 11th | ||
| Hohenpeissenberg | Germany | July | July 14th-July 21st | ||
| Toronto_IOS | Canada | July | July 19th-July 26th | ||
| Reykjavik | Iceland | August | August 9th-August 15th | ||
| Toronto_IOS | Canada | August | August 9th-August 27th | ||
| Lindenberg | Germany | August | August 23rd-August 29th | ||
| Poprad_Ganovce | Slovakia | August | August 30th-September 3rd | ||
| Sonnblick | Austria | September | September 6th-September 9th | ||
| Sodankyla | Finland | October | October 12th-October 14th | ||
| Helsinki | Finland | October | October 14th-October 16th | ||
| Issyk-Kul_OMD | Kyrgyzstan | November | November 12th-November 20th |