Attachment 1 Specification Document 12805B24Q0465.pdf

UNITED STATES DEPARTMENT of AGRICULTURE

AGRICULTURE RESEARCH SERVICE

CONSERVATION and RESEARCH LABORATORY

2300 Experiment Station Road

Bushland, Texas, 79012

Summary of Procurement Request for a Supply Purchase

Requirement Name: 8 – Chamber Multiplexer (Brand Name LI-COR 8250 or Equal) with 8250-02 extension manifold with flask sampling option.

Suggested Method of Procurement: GSA

POC: Patricia Roark, AO

Email: Patricia.roark@usda.gov

Cell: 806-336-7685

Prior Contract: N/A

Required Delivery Date: 1 November 2024

Specification Document

General Information:

Background and Purpose:

The primary mission of the USDA-ARS Conservation & Production Research Laboratory (CPRL), Livestock Nutrient Management Unit (LNMRU) is to research environmental impacts of livestock production and to develop ways of improving animal health and maximizing production while mitigating environmental impacts of the industry. A significant aspect to this research is the study of greenhouse gas emissions from soil, pen surfaces, and manure.

The LNMRU has a LI-COR 8250 multiplexer and a LI-COR 8250-01 extension manifold which is used to automatically sample emissions from multiple flux chambers in the field or multiple laboratory-scale closed chambers. The current maximum capacity is 15 chambers/study. The purchase of an additional LI-

COR 8250 multiplexer and a LI-COR 8250-01 extension manifold would greatly enhance the research capability of the LNMRU by 1) increasing the maximum number of chambers per study to 30, and 2) allow a laboratory study and a field study to be conducted simultaneously.

1. Definitions:

1. USDA: Unites States Department of Agriculture

2. ARS: Agricultural Research Service

3. CPRL: Conservation and Production Research Laboratory

4. AO: Administrative Officer

5. PWS: Performance Work Statement

6. LNMU: Livestock Nutrient Management Unit

7. EA: Each about:blank

CONSERVATION and RESEARCH LABORATORY

CONTRACTOR REQUIREMENTS:

2. Technical Requirements/Tasks: The objective is to procure a flux chamber sampling multiplexer/manifold system with at least control 15 ports. The proposed system must integrate into existing system, and sample closed-chamber flux devices. Specifically, the system must continuously circulate air through all closed chambers while still being able to sample one chamber at a time. In the LI-COR design, this is accomplished by the “Flask Sampling Kit” option.

Contractor Requirements:

1. Proposed system must be able to control at least 15 ports. One port is an air sample in, an air sample out and the electrical connection to connect a LI-COR 8100A Digital Flux Chamber (8-pin Turck connector).

2. System must integrate with current equipment in use, i.e., LI-COR 8250 multiplexer, LI-COR 8250-01 extension manifold, LI-COR 8100A flux chambers, Picarro and Los Gatos trace gas analyzers.

3. System must be compatible with both closed-chamber flux systems and flux chambers that mechanically open when not being sampled. The closed-chamber system must be able to always circulate air through all the chambers to prevent the buildup of emission gases, but also be able to redirect sample flow to the analyzer from one chamber at a time.

System must be user programmable, user defined sampling sequence, purge timing, sample timing, path length etc. and compatible with existing LI-COR software.

Product Specifications:

1. LI-8250 8-port Multiplexer (1EA)

2. 8250-01 8-port Extension Manifold (1EA)

3. 8250-660 Flask Sampling Kit (2EA) installed.

4. 9982-081 Thermistor cable assembly (2EA)

3. Deliverable / Schedule:

Key Deliverables

Item No. Deliverable Objective Due

1 Complete flux chamber sampling system as described above.

Per above technical requirements / task 1 November 2024

CONSERVATION and RESEARCH LABORATORY

4. Government Furnished:

N/A

5. Travel:

N/A

6. Contractor’s Key Personnel:

N/A

7. Security Requirements:

8. Data Rights:

9. Section 508 – Electronic and Information Technology Standards:

10. Performance Requirement Measures:

11. Market Research Quotes (if any): Quote and Information Included

12. Suggested Source: Quote and Literature Attached