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 |
| Hradec_Kralove | Czech_Republic | May | ||
| Hohenpeissenberg | Germany | July | ||
| Toronto_IOS | Canada | July | ||
| Reykjavik | Iceland | August | ||
| Toronto_IOS | Canada | August | ||
| Lindenberg | Germany | August | ||
| Poprad_Ganovce | Slovakia | August | ||
| Sonnblick | Austria | September | ||
| Sodankyla | Finland | October | ||
| Helsinki | Finland | October | ||
| Issyk-Kul_OMD | Kyrgyzstan | November |