Document:

Retirement Benifit Agreement

 Exhibit 10.29 
  
 RETIREMENT BENEFIT AGREEMENT 
  
 THIS AGREEMENT dated this 16th day of January, 2003, between The Burlington Northern and Santa Fe Railway Company
(hereinafter referred to as the “Company”) and Mr. John Lanigan (hereinafter referred to as “Mr. Lanigan.”) 
  
 W I T N E S S E T H 
  
 WHEREAS, in consideration of Mr. Lanigan’s service, the Company desires to provide Mr. Lanigan with benefits upon retirement to be calculated
in the manner and provided under the conditions set forth herein; 
  
 NOW, THEREFORE, in consideration of the mutual covenants contained herein, the Company and Mr. Lanigan agree as follows: 
  
 1. Upon termination of his employment with the Company, Mr. Lanigan will be entitled to the following retirement benefits: 
  

	 	(a)	 	A Normal Retirement Benefit, reduced Early Retirement Benefit or Vested Right Benefit calculated in accordance with the provisions of the Burlington Northern Santa Fe Retirement
Plan (hereinafter referred to as the “Plan”) in effect on the date of his termination, and payable out of Plan assets in accordance with the Plan terms and, if entitled thereto by the provisions of the Burlington Northern Santa Fe
Supplemental Retirement Plan, an additional benefit payable out of the general assets of the Company; and 

  

	 	(b)	 	An extra Retirement Benefit payable monthly out of the general assets of the Company and calculated as follows: 

  

	 	(i)	 	Mr. Lanigan’s Normal Retirement Benefit, reduced Early Retirement Benefit or Vested Right Benefit calculated as described in Section 1(a) of this Agreement, provided that for
purposes of this Section 1(b), at the time of his termination of employment Mr. Lanigan shall be credited with an additional five years of Benefit Service under the Plan, with total Benefit Service not to exceed 40 years under the BNSF Plan benefit
formula; minus 

  

	 	(ii)	 	Mr. Lanigan’s Normal Retirement Benefit, reduced Early Retirement Benefit or Vested Right Benefit, if any, as calculated in Section 1(a) of this Agreement.

	 	(c)	 	The extra Retirement Benefit to be provided to Mr. Lanigan pursuant to Section 1(b) will be forfeited if Mr. Lanigan voluntarily terminates his employment with the Company without
the Company’s consent prior to the completion of five years of continuous employment or if Mr. Lanigan is terminated by the Company for Cause (defined below), but shall not be forfeited if Mr. Lanigan voluntarily terminates his employment with
the Company after the completion of five years of continuous employment or if Mr. Lanigan’s employment with the Company terminates by reason of his death or disability or termination by the Company without Cause. For purposes of this Section
1(c), “Cause” shall mean (i) the willful and continued failure by Mr. Lanigan to substantially perform his duties with the Company (other than any such failure resulting from his incapacity due to physical or mental illness), or (ii) the
willful engaging by Mr. Lanigan in conduct which is demonstrably and materially injurious to the Company, monetarily or otherwise. For purposes of this definition, no act, or failure to act, shall be deemed “willful” unless done, or
omitted to be done, by Mr. Lanigan not in good faith and without reasonable belief that his action or omission was in the best interest of the Company. 

  

	 	(d)	 	For purposes of the extra Retirement Benefit to be provided to Mr. Lanigan pursuant to Section 1(b), Mr. Lanigan shall be eligible for early retirement at any time he has both
attained age 55 and completed at least 10 years of Vesting Service. 

  

	2.	 	Nothing contained herein shall confer any right upon Mr. Lanigan for continued employment by the Company, or any affiliate or subsidiary of the Company. 

  

	3.	 	The Company retains the right to withhold from payments due hereunder amounts deemed by the Company to be required to be withheld under income or other tax laws of any jurisdiction.

  

	4.	 	This Agreement releases the Company and its affiliates from making any retirement benefit payments to Mr. Lanigan out of Plan or Company assets other than as provided herein and
supersedes all prior agreements between Mr. Lanigan, the Company or any of its affiliated companies related to retirement benefits. 

 IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first
above written. 
  

			
	THE BURLINGTON NORTHERN AND SANTA FE RAILWAY COMPANY
		
	 By:
	 	 /s/    Matthew K. Rose

	 	 	

  

	
	 [Corporate Seal]
  
 ATTEST:

	
	  
	

	Secretary

  

	
	JOHN LANIGAN
	
	 /s/    John LaniganExhibit 10.1

 Exhibit 10.1 
  
 December 24, 2003 
  
 Mr. C. Wayne Grubbs 
 Vice President 
 Corporate Controller & Treasurer 
 SRA International, Inc. 
 Fairfax, VA 22033 
  
 Dear Mr. Grubbs: 
  
 This letter will acknowledge
our agreement to modify the Loan Agreement dated August 15, 2001, between SRA International, Inc. (the Company), Systems Research and Applications Corporation (SRA) and SRA Technical Services Center, Inc. (STSC) and SunTrust Bank (the Lender), as
outlined below: 
  

	 	1.	Extend the Termination Date to February 29, 2004, as allowed in Section 2.1(f). 

  

	 	2.	Waive Section 6.9 to allow for the Company’s planned acquisition of Orion Scientific Systems. 

  
 Should you have any questions about this modification, please call me at your earliest convenience. 
  
 Sincerely, 
  

	
	 /s/ Duncan S. Owen, III

	 Duncan S. Owen, IIIFIRST AMENDMENT TO THE CREDIT AGREEMENT

 EXHIBIT 4.10 
  
 FIRST AMENDMENT 
 TO 
 CREDIT AGREEMENT 
  
 FIRST AMENDMENT, dated as of September 15, 2003 (“First Amendment”), to the Credit Agreement, dated as of July 29, 2003 (as the
same may be amended, supplemented or modified from time to time, this “Credit Agreement”), among Apogent Technologies Inc., a Wisconsin corporation (the “Company”), Erie Scientific Company, a Delaware corporation,
Nalge Nunc International Corporation, a Delaware corporation, and Remel Inc., a Wisconsin corporation, (each a “Subsidiary Borrower”; together with the Company, the “Borrowers” and each of them individually, a
“Borrower”) the several banks and other financial institutions from time to time parties thereto (the “Lenders”), J.P. Morgan Securities Inc. and Fleet Securities, Inc., as Joint Lead Arrangers and Joint Bookrunners
(in such capacity, the “Arrangers”), Fleet National Bank, as Syndication Agent (in such capacity, the “Syndication Agent”), ABN AMRO Bank N.V., Bank of America N.A. and SunTrust Bank, as Co-Documentation Agents (in
such capacity, the “Co-Documentation Agents”), and JPMorgan Chase Bank (and its successors and assigns), a New York banking corporation, as administrative agent for the Lenders hereunder (in such capacity, the
“Administrative Agent”). 
  
 W I
T N E S S E T H: 
  
 WHEREAS, the parties to the Credit Agreement desire to amend certain definitions under the Credit Agreement to clarify the intent of the parties; and 
  
 WHEREAS, the parties to the Credit Agreement desire to amend certain covenants under the Credit Agreement to enable the
Company to better achieve its operating plan during the Credit Agreement. 
  
 NOW, THEREFORE, in consideration of the foregoing premises and for other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged: 
  
 I. Definitions. Unless otherwise defined herein, terms defined in the
Credit Agreement are used herein as therein defined. 
  
 II.
Amendments to the Credit Agreement. The parties hereto agree that the Credit Agreement shall be amended as follows: 
  
 A. Amendments to Section 1.1 (Defined Terms). Section 1.1 of the Credit Agreement is hereby amended by deleting the definition of
“Consolidated Adjusted EBITDA” in its entirety and inserting in lieu thereof the following new definition: 
  
 “Consolidated Adjusted EBITDA”: for any period, without duplication, Consolidated Net Income for such period before
deduction of any applicable income taxes and excluding (i) any extraordinary items of gain or loss and (ii) gain or loss from discontinued operations (classified under GAAP), plus Consolidated Interest Expense for such period,
plus depreciation and amortization expenses for such period, to the extent the same are deducted from net revenues in determining Consolidated Net Income for such period. As used in this definition, the phrase,
“any extraordinary items of gain or 

 loss”, shall in any event include no more than $60,000,000 aggregate amount of expenses incurred and
payments made by the Company in connection with its tender offer for its 8% Senior Notes due 2011 (the “Notes”), which amount represents the aggregate amount paid by the Company for the Notes in excess of the face amount paid
thereof and related fees, discounts, and expenses. 
  
 III.
General. 
  
 A. Representation and
Warranties. To induce the Administrative Agent and the Lenders parties hereto to enter into this First Amendment, the Borrower hereby represents and warrants to the Administrative Agent and the Lenders parties hereto that: 
  
 1. Power; Authorization; Enforceable Obligations.

  
 (a) Each Borrower has the corporate power
and authority, and the legal right, to make, deliver and perform this First Amendment, and to perform the Loan Documents to which it is a party, as amended by this First Amendment, and has taken all necessary corporate action to authorize the
execution, delivery and performance of this First Amendment and the performance of such Loan Documents, as so amended. 
  
 (b) No consent or authorization of, filing with, notice to or other act by or in respect of, any Governmental Authority or any other
Person is required in connection with the execution, delivery, performance, validity or enforceability of this First Amendment, or the Loan Documents to which any Loan Party is a party, as amended by this First Amendment, except for consents,
authorizations, filings and notices which have been obtained or made and are in full force and effect. 
  
 (c) This First Amendment has been duly executed and delivered on behalf of each Borrower and duly acknowledged and consented to by each
Subsidiary Guarantor. 
  
 (d) Each of this First
Amendment and the Loan Documents to which any Loan Party is a party, as amended by this First Amendment, constitutes a legal, valid and binding obligation of such Loan Party, enforceable against such Loan Party in accordance with its terms, except
as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium, or similar laws affecting the enforcement of creditors’ rights generally and by general equitable principles (whether enforcement is sought by
proceedings in equity or at law). 
  
 2. No
Legal Bar. The execution, delivery and performance of this First Amendment and the performance of the Loan Documents to which any other Loan Party is a party, as amended by this First Amendment, will not violate or conflict with any Requirement
of Law or any material Contractual Obligation of the Borrower or any of its Subsidiaries and will 
  

 2 

 not result in, or require, the creation or imposition of any Lien on any of their respective properties
or revenues pursuant to any Requirement of Law or any such Contractual Obligation. 
  
 3. No Change. Since June 30, 2003 and after giving effect to this First Amendment, there has been no development or event that has
had or is reasonably expected to have a Material Adverse Effect. 
  
 4. Representations and Warranties in Loan Documents. The representations and warranties made by each Loan Party in each Loan Document to which it is a party or made by the Borrowers herein are true and correct
on and as of the date hereof, before and after giving effect to this First Amendment, except to the extent that such representation or warranty is expressly limited by its terms to an earlier date, in which case such representation or warranty was
true and correct as of such earlier date. 
  
 B.
Continuing Effect of Loan Documents. Except as expressly amended, modified and supplemented hereby, the provisions of the Credit Agreement and the other Loan Documents are and shall remain in full force and effect. 
  
 C. Expenses. The Borrowers agree to reimburse the
Administrative Agent for all of its reasonable out-of-pocket costs and expenses incurred in connection with this First Amendment and any other documents prepared in connection herewith, including the reasonable fees and expenses of its counsel.

  
 D. Effectiveness. This First Amendment
shall become effective upon receipt by the Administrative Agent of (i) counterparts hereby signed by the Borrowers and the Majority Lenders, and (ii) the Acknowledgment and Consent, in the form attached hereto, signed by the Subsidiary Guarantors.

  
 E. GOVERNING LAW. THIS FIRST
AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK. 
  
 F. Counterparts. This First Amendment may be executed in any number of counterparts by the parties hereto, each of which
counterparts when so executed shall be an original, but all counterparts taken together shall constitute one and the same instrument. This First Amendment may be delivered by facsimile transmission of the relevant signature pages hereof. 

 
 [The remainder of this page is intentionally left blank.]

  

 3 

 IN WITNESS WHEREOF, the parties hereto have caused this First Amendment to be duly executed and delivered
by their respective duly authorized officers as of the day and year first above written. 
  

					
	APOGENT TECHNOLOGIES INC. 
		
	By:	 	/s/
	 	 	

	 	 	Name:	 	Dennis B. Brown,
	 	 	Title:	 	Chief Financial Officer

					
	
	ERIE SCIENTIFIC COMPANY
		
	By:	 	/s/
	 	 	

	 	 	Name:	 	Dennis B. Brown
	 	 	Title:	 	Vice President

					
	
	NALGE NUNC INTERNATIONAL CORPORATION
		
	By:	 	/s/
	 	 	

	 	 	Name:	 	Dennis B. Brown
	 	 	Title:	 	Vice President

					
	
	 REMEL INC.

		
	By:	 	/s/
	 	 	

	 	 	Name:	 	Dennis B. Brown
	 	 	Title:	 	Vice President

					
	
	JPMORGAN CHASE BANK, as Administrative Agent and as a Lender
		
	By:	 	/s/
	 	 	

	 	 	Name:	 	John A. Francis
	 	 	Title:	 	Vice President

  

 4 

					
	FLEET NATIONAL BANK 
		
	By:	 	/s/
	 	 	

	 	 	Name:	 	Gordon B. Coughlin
	 	 	 Title:
	 	 Vice President

  

 5 

					
	ABN AMRO BANK N.V. 
		
	By:	 	/s/
	 	 	

	 	 	Name:	 	Alexander M. Blodi
	 	 	 Title:
	 	 Director

		
	By:	 	                /s/
	 	 	

	 	 	Name:	 	Michele R. Costello
	 	 	 Title:
	 	 Assistant Vice President

  

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	BANK OF AMERICA, N.A. 
		
	By:	 	/s/
	 	 	

	 	 	 Name:
	 	 Philip S. Durand

	 	 	Title:	 	Managing Director, Healthcare

  

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	THE BANK OF NOVA SCOTIA 
		
	By:	 	/s/
	 	 	

	 	 	Name:	 	Carolyn A. Calloway
	 	 	 Title:
	 	 Managing Director

  

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	 CITIZENS BANK OF MASSACHUSETTS

		
	 By:
	 	                 /s/    

	 	 	

	 	 	Name:	 	Cindy Chen
	 	 	Title:	 	Vice President

  

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	CREDIT SUISSE FIRST BOSTON, ACTING THROUGH ITS CAYMAN ISLANDS BRANCH
		
	 By:
	 	                 /s/    

	 	 	

	 	 	Name:	 	William O’Daly
	 	 	Title:	 	Director
		
	 By:
	 	                 /s/    

	 	 	

	 	 	Name:	 	Christopher Lally
	 	 	Title:	 	Vice President

  

 10 

					
	 HBSC BANK USA

		
	 By:
	 	                 /s/    

	 	 	

	 	 	Name:	 	John V. Raleigh
	 	 	Title:	 	Vice President

  

 11 

					
	 LEHMAN COMMERCIAL PAPER INC.

		
	 By:
	 	                 /s/    

	 	 	

	 	 	Name:	 	Francis Chang
	 	 	Title:	 	Vice President

  

 12 

					
	 SUNTRUST BANK

		
	 By:
	 	                 /s/    

	 	 	

	 	 	Name:	 	William D. Priester
	 	 	Title:	 	Director

  

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	 WACHOVIA BANK, NATIONAL ASSOCIATION

		
	 By:
	 	                 /s/    

	 	 	

	 	 	Name:	 	James S. Conville
	 	 	Title:	 	Assistant Vice President

  

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 ACKNOWLEDGMENT AND CONSENT 
  
 Each of the undersigned hereby acknowledges and consents to the foregoing First Amendment and hereby acknowledges and
confirms its obligations under such Subsidiary Guarantor’s Guarantee, dated as of July 29, 2003, and all other Loan Documents, including, without limitation, as such documents have been heretofore amended or modified, and, to the extent
permitted by applicable law, as may be further amended or modified from time to time. 
  

					
	 ABGENE INC.
 APOGENT FINANCE COMPANY
 APOGENT HOLDING COMPANY
 APOGENT TRANSITION CORP.
 APOGENT SERVICE CORPORATION
 BARNSTEAD THERMOLYNE CORPORATION
 BT CANADA HOLDINGS INC.
 CAPITOL VIAL, INC.
 CHASE SCIENTIFIC GLASS, INC.
 CONSOLIDATED TECHNOLOGIES, INC.
 ERIE SCIENTIFIC COMPANY OF PUERTO RICO
 ERIE UK HOLDING COMPANY
 EVER READY THERMOMETER CO., INC.
 G&P LABWARE HOLDINGS INC.
 GENEVAC INC.
 LAB-LINE INSTRUMENTS, INC.
 LAB VISION CORPORATION
 MATRIX TECHNOLOGIES CORPORATION
 MICROGENICS CORPORATION
 MOLECULAR BIOPRODUCTS, INC.
 NATIONAL SCIENTIFIC COMPANY
 THE NAUGATUCK GLASS COMPANY
 NEOMARKERS, INC.
 NERL DIAGNOSTICS CORPORATION
 OWL SEPARATION SYSTEMS, INC.
 QUALITY SCIENTIFIC PLASTICS, INC.
 RICHARD-ALLAN SCIENTIFIC COMPANY
 ROBBINS SCIENTIFIC CORPORATION
 SAMCO SCIENTIFIC CORPORATION
 SEPARATION TECHNOLOGY, INC.
 SERADYN INC.

		
	 By:
	 	                 /s/    

	 	 	

	 	 	Name:	 	Dennis B. Brown
	 	 	Title:	 	Vice President

  
  

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	 METAVAC LLC

		
	 By:
	 	 THE NAUGATUCK GLASS COMPANY
 Member and Manager

			
	 	 	 By:
	 	                 /s/    

	 	 	 	 	

	 	 	 	 	Name:	 	Dennis B. Brown
	 	 	 	 	Title:	 	Vice President

  

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