Amendment 0002.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of this amendment is to provide responses to RFI's and make changes to specif ications. All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

1 3

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 23-Apr-2020

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912WJ20B0008

X 9B. DATED (SEE ITEM 11)

06-Apr-2020

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

23-Apr-2020

CODE

US ARMY ENGR DISTRICT, NEW ENGLAND

696 VIRGINIA ROAD

CONCORD MA 01742-2751

W912WJ 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912WJ20B0008

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00100 - BIDDING SCHEDULE/INSTRUCTIONS TO BIDDERS

The following have been added by full text:

RFI'S 0002

RFI’s #1 W912WJ20B0008 Climatic Cold Chambers, Cold Regions Research and Engineering Laboratory

1. Performance: Are there any rate of change requirements from Ambient to -54C, Ambient to 50C, and rate of change requirements between the extremes?

Response: Refer to Amendment 0002 for revisions to Section 11 20 20.

2. Is the 59656 Watts of live load (produced by the HumV) on continuously at all temperatures? I saw a reference in section 3.5.4 (Vehicle Test) that indicates there may only be a 30 minute test period, so perhaps it's only on for a short period of time. Need clarification.

Response: The design requirement is to maintain temperature performance with the specified live load and dead load for a period of 30 minutes. In actual use, the chamber and test vehicle may operate for periods of several days, but the test vehicle live load will vary.

3. Section 1.4.1.G says to maintain RH at 20% to 95%. Does this need RH control? RH control is only available above 10C temperatures. This adds a level of complexity, so need to confirm.

Response: Refer to Amendment 0002 for revisions to Section 11 20 20.

4. Vestibule (Anti-Room). I didn't see a size indicated for this room. I looked through the drawings also, where I saw the vestibule but couldn't determine the size. Can you assist?

Response: The Vestibule dimensions are provided on drawing G-003 GENERAL ARRANGEMENT and on drawing A-101 GROUND FLOOR PLAN.

5. Section 2.3.5: States window locations are indicated on contract drawings. I looked through the drawings and only saw one view where there were windows on each door. Are there other views showing side wall windows?

Response: All window locations are shown on the contract drawings. The only viewing windows are on the doors as shown.

W912WJ20B0008

AMENDMENT 0002 OF SOLICITATION

1.1 CHANGES TO SPECIFICATIONS

1.1.1 Replace Specification Sections

(1) The following Section is replaced in its entirety:

(a) SECTION 11 20 00 MEDIUM COLD CHAMBER ENCLOSURE

1.1.2 Narrative Changes to the Specification SECTION 11 20 00

(1) Subpart 1.4.1 Design Requirements; para f. after last sentence add:

“Rates of change within temperatures shall be as follows:

(1). Cooling rate of change from +24°C to -40°C with the specified dead load and no applied live load in 60 minutes.

(2). Heating rate of change from -40°C to +50°C with the specified dead load and no applied live load in approximately 360 minutes at an average (non-linear) rate of 0.25°C per minute.”

(2) Subpart 1.4.1 Design Requirements; para g. after last sentence add:

“Relative humidity control is not required.”

(End of Summary of Changes)