...BOSTON (Standard & Poor's) July 16, 2015--Standard & Poor's Ratings Services today assigned its '###' issue-level rating to Thermo Fisher Scientific Inc.'s 500 million senior unsecured note offering due in 2022. The company will use the proceeds for general corporate purposes and we do not expect any change to leverage. Our '###' corporate credit rating on Thermo Fisher reflects the company's significant scale and product and end-market diversity which supports our "satisfactory" business risk profile assessment. Our base-case expectation that leverage (adjusted for net cash and this issuance) will be about 3x by the end of 2015 supports our "significant" financial risk profile assessment. For the corporate credit rating rationale, see the summary analysis on Thermo Fisher Scientific published on June 22, 2015. RELATED CRITERIA AND RESEARCH Related Criteria + Criteria - Corporates - General: Methodology And Assumptions: Liquidity Descriptors For Global Corporate Issuers, Dec. 16, 2014 +...