Attachment A - Propylene Glycol Specs.pdf

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Propylene Glycol for NWS ASOS/COOP
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1305M225R0045
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This document is a detailed National Weather Service (NWS) specification for packaged units of Propylene Glycol, designated as Specification No. D111-153-SP004, dated December 3, 2013. The specification outlines comprehensive requirements for manufacturing, testing, and delivering 32-ounce containers of high-quality, technical-grade Propylene Glycol intended for use in NWS recording precipitation gauges, specifically the Automated Surface Observing System (ASOS) and Cooperative Observer Program (COOP) winter maintenance needs.

The specification provides rigorous technical specifications including chemical properties (pH range 6.5-8.2), physical properties (specific gravity 1.04 ± 2%), and functional requirements (anti-icing performance at -30°F). The containers must be high-density polyethylene, 32 ± 1 fluid ounces, with threaded pouring necks, foil seals, and specific labeling instructions. The document details extensive quality assurance provisions, including preproduction and production sample inspections, certification requirements, and packaging/marking specifications. Contractors must provide materials and process certifications, comply with precise manufacturing and testing procedures, and ensure the Propylene Glycol meets all specified performance and safety standards.

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Specification No. D111-153-SP004

Dec. 3, 2013

Supersedes

Specification No. D111-153-SP003

Nov. 1, 2010

NATIONAL WEATHER SERVICE

ENGINEERING DIVISION

Specification For

Packaged Units of PROPYLENE-GLYCOL

NWS Specification No. D111-153-SP004 Dec.3, 2013

Table of Contents

NWS Specification No. D111-153-SP004 Dec. 3, 2013

1 SCOPE

1.1 Scope

2 APPLICABLE DOCUMENTS

2.1 Documents Government

2.1.1 Standards

2.2 Document Sources

3 REQUIREMENTS

3.1 General Requirements

3.1.1 Item Definition

3.1.2 Major Components

3.2 Product Characteristics

3.2.1 Functional Environment

3.3 Formulation

3.3.1 Chemical Properties

3.3.2 Physical Properties

3.3.3 Toxic Products

3.4 Container

3.4.1 Container Details

3.4.2 Container Source

3.4.3 Quantity

3.4.4 Labels

3.4.5 Packaging and Marking

3.5 Samples

3.5.1 Preproduction Samples

3.5.2 Production Lot Samples

3.6 Workmanship

3.7 Precedence of Documents

3.7.1 Notification

4 QUALITY ASSURANCE PROVISIONS

4.1 General

4.2 Acceptance Test and Inspection Provisions

4.2.1 Performance of Tests and Inspections

4.2.2 Contractor Services and Materials

4.3 Rejection

4.4 Compliance Documentation

4.4.1 Materials and Process Certification

4.4.2 Certification Reports

4.5 Sample Inspections

4.5.1 Preproduction Sample Inspection

4.5.2 Production Sample Inspection

4.5.3 Reinspection

4.6 Inspection Procedures

4.6.1 Sample Inspection

4.6.2 General Inspection

5 PREPARATION FOR DELIVERY

5.1 Preservation and Packaging

5.2 Packaging Details

5.3 Marking

5.3.1 Special Marking

6 NOTES

6.1 Intended Use

6.2 Ordering Data

6.2.1 Procurement Details

6.2.2 Samples

6.2.3 Certifications and Reports

6.2.4 Shipment

APPENDIX A ................................................. 6-1

U.S. DEPARTMENT OF COMMERCE

National Oceanic & Atmospheric Administration

National Weather Service

Silver Spring, Maryland 20910

Dec. 3, 2013

Supersedes

SPECIFICATION FOR

Packaged Units of PROPYLENE GLYCOL

1 SCOPE

1.1 Scope.

This specification defines the requirements for the manufacture, test, acceptance, and delivery of packaged units of Propylene

Glycol suitable for use in National Weather Service (NWS) recording precipitation gauges.

2 APPLICABLE DOCUMENTS

2.1 Documents Government.

The following documents, form part of this specification to the extent specified herein. The document revision in effect shall be the issue in effect on the date of solicitation for bids or proposals.

2.1.1 Standards.

FEDERAL: Title: Remarks:

Fed. Std. 102b Preservation, packing, and packing levels

See paragraph 5.1 &

5.2 (herein)

Fed. Std. 123d Marking for Shipment See paragraph 5.3

(herein)

2.2 Document Sources.

Single copies of federal specifications and standards required for bidding purposes are available at the regional General

Services Administration offices.

3 REQUIREMENTS

3.1 General Requirements.

The Propylene Glycol unit shall be manufactured, tested, inspected, and packaged for delivery as specified in applicable paragraphs of this specification. Preproduction tests shall be completed prior to the manufacture of the production units.

3.1.1 Item Definition.

A unit of Propylene Glycol shall be defined as one 32 ounce

(nominal) container properly filled and labeled as specified herein. The Propylene Glycol is used to melt snowfall that accumulates inside the NWS recording precipitation gage.

3.1.2 Major Components.

a. Propylene-glycol - pure technical grade, USP/EP (food grade)

b. Container with labels

3.2 Product Characteristics.

The Propylene Glycol shall contain the chemical compounds required to conform to the requirements of this specification.

3.2.1 Functional Environment.

The Propylene Glycol shall perform as an anti-icing agent by not forming a solid when diluted with 50 percent water at a temperature of -30°F, nominal values.

3.3 Formulation.

The Propylene Glycol (PG) shall be pure, high quality, technical grade or USP/EP grade (food grade), propylene-glycol. This grade of PG is a clear, colorless, practically odorless, and slightly viscous liquid.

3.3.1 Chemical Properties.

The Propylene Glycol shall have a pH value in the range of

6.5 minimum to 8.2 maximum.

3.3.2 Physical Properties.

The specific gravity of the Propylene Glycol shall be 1.04 ±

2% when measured at ambient room temperature.

3.3.3 Toxic Products.

The Contractor shall provide the current toxicological data and formulations required to evaluate the safety of the Propylene

Glycol and provide a Material Safety Data Sheet (MSDS) that complies with OSHA code 29 CFR 1910.1200.

3.4 Container.

The container shall be of one quart capacity and shall be constructed to withstand shipment and storage without leakage when packaged as specified.

3.4.1 Container Details.

The container shall be shaped for cubic efficiency by being generally rectangular in shape and shall be in accordance with the following:

a. The container material shall be of high density polyethylene. Any color is acceptable.

b. The pouring neck shall be threaded to accept a cap and shall be suitable for air-tight hermetic sealing. A foil seal shall be secured over the pouring orifice after the container is filled.

c. A cap shall be supplied and fitted to each filled/sealed bottle, and contain an additional seal to ensure sealing after the foil seal is removed.

d. The container shall not be oversized and should have a maximum capacity of 38 fluid ounces or less.

e. The container shall be the same for the whole order lot.

f. The container may be direct printed or use labels to contain the information specified in 3.4.4 and following. Other Vendor information may also be on the container.

3.4.2 Container Source.

The vendor shall choose the container source.

3.4.3 Quantity.

Each container shall be filled with 32 +/- 1 fluid ounces of the specified propylene-glycol.

3.4.4 Labels.

If labels are used, each container shall have durable self-adhesive, smudge-proof labels attached to the wider sides of the container. Printing shall be sized for normal unaided eyesight. The labels/printing shall have the instruction information in the format as specified in Appendix A.

3.4.5 Packaging and Marking.

The units shall be packaged two to a box/carton and marked, in accordance with the requirements of Section 5.

3.5 Samples.

The Contractor shall provide the required samples for the preproduction and production acceptance inspections. The

Government may subject any unit to spectrographic, chromatographic, and spectrophotometric methods or any other measurements deemed necessary by the Government to facilitate comparison between the preproduction samples and the production samples subsequently delivered for acceptance.

3.5.1 Preproduction Samples.

The Contractor shall manufacture a preproduction sample for approval by the Government prior to the quantity production of the Propylene Glycol units on contract. This sample shall consist of four units of the Propylene Glycol formulated, quantified, and in labeled containers packaged, and marked for delivery as specified in paragraphs 3.3 through 3.4.5.

3.5.2 Production Lot Samples.

The Contractor shall select and inspect the production lot samples from each production lot (i.e. from the same mix or batch) at random at a rate of four Propylene Glycol units per production lot of 2,000 units as defined by paragraph 3.1.1.

3.6 Workmanship.

Workmanship shall be the highest quality consistent with accepted industrial standards utilized by manufacturers of similar material, and shall comply with applicable standards and requirements to produce an uncontaminated and consistent product. With the delivery of each lot submitted for Government acceptance, the Contractor shall visually inspect each unit for completeness as follows:

a. Containers sealed with foil

b. Container caps tight

c. Labels attached and smudge-free

d. Two units in each carton

e. Material Safety Data Sheets in each carton

f. Packaging marked as required

3.7 Precedence of Documents.

Should the requirements or provisions of the purchase contract, this specification or referenced documents be in conflict, the following order of precedence shall prevail:

a. Purchase contract

b. This specification

c. Referenced standards and specifications

3.7.1 Notification.

The Contractor shall immediately notify the Government

Contracting Officer, in writing, of any conflict or apparent conflict with the requirements in this specification.

4 QUALITY ASSURANCE PROVISIONS

4.1 General.

Acceptance of any Propylene Glycol unit by the Government shall be contingent upon such unit(s) complying with the requirements of this specification as demonstrated by meeting the "Quality

Assurance Provisions" specified herein. Government acceptance of the preproduction Propylene Glycol samples or any production Propylene Glycol unit shall not be construed as a waiver of any specified requirement.

4.2 Acceptance Test and Inspection Provisions.

The Contractor shall demonstrate to the Government that each

Propylene Glycol unit complies with the technical requirements of this specification by conducting the following required classes of tests and inspections and any other necessary tests and inspections to assure compliance.

a. Preproduction sample inspection (4.5.1)

b. Production sample inspection (4.5.2)

4.2.1 Performance of Tests and Inspections.

The Contractor shall perform all tests and inspections at the

Contractor's facility or any other facility approved by the

Government. The Government will witness and review all tests and inspections and use the results in the determination of the acceptance of each Propylene Glycol unit. The Government reserves the right to waive any test or inspection and to perform any or all inspections deemed necessary to assure that each Propylene Glycol unit complies with the requirements of this specification at any time during the contract period.

4.2.2 Contractor Services and Materials.

The Contractor shall provide all services, materials, facilities, equipment, and personnel required to perform all tests and inspections. Except as otherwise specified, the

Contractor may utilize his own facilities or any commercial laboratory acceptable to the Government.

4.3 Rejection.

In the event any Propylene Glycol unit fails to comply with any requirement of this specification, the Government will reject the entire lot from which the Propylene Glycol unit represents. The Contractor shall determine the cause of noncompliance, at no additional cost to the Government, and submit remedial procedures for approval prior to re-inspection.

4.4 Compliance Documentation.

4.4.1 Materials and Process Certification.

The Contractor shall certify, in writing, signed by the

Contractor's Official Quality Control Representative, acknowledging that each unit submitted for Government acceptance is manufactured from the specified materials and produced in accordance with all the requirements of this specification.

4.4.2 Certification Reports.

The Contractor shall provide a written report, signed by the

Contractor's Official Quality Control Representative, listing the actual measurements, tests, and inspection results as indicated in Table I.

4.5 Sample Inspections.

4.5.1 Preproduction Sample Inspection.

The Contractor shall inspect and test two of the four preproduction samples of paragraph 3.5.1 in accordance with the inspection procedures of paragraph 4.6 and as specified in Table

I. Rejection shall be as specified in paragraph 4.3. The remaining two units, packaged as required by Section 5, and the documentation required by paragraph 4.4 shall be delivered to the Government for approval.

4.5.2 Production Sample Inspection.

The Contractor shall select the samples in accordance with paragraph 3.5.2 and shall inspect these samples in accordance with the inspection procedures of paragraph 4.6 and as specified in Table I. Rejection shall be as specified in paragraph 4.3. The documentation required by paragraph 4.4 shall be delivered concurrently with the production lot to the

Government for approval.

4.5.3 Reinspection.

Reinspection by the Contractor shall only be permitted after the remedial procedures of paragraph 4.3 have been approved by the

Government Contracting Officer. These procedures shall establish whether reinspection shall include all the inspection procedures of paragraph 4.6 or only those that revealed the cause(s) for the initial rejection. Reinspected units shall be designated as such by the Contractor and shall be delivered only after the compliance documentation of paragraph 4.4 meets the approval of the Government Representative.

Table I Inspection Schedule

Requirements

Test

Paragraph

Remarks

3.2.1 Functional Environment* 4.6.1.4 Test

3.3 Formulation* 4.4.1 Certification

3.3.1 Chemical Properties* 4.6.1.3 Measurement

3.3.2 Physical Properties* 4.6.1.2 Measurement

3.3.3 Toxic Products 4.6.2.3 Certification (MSDS)

3.4.1 Container Details* 4.6.1.5 Measurement

3.4.3 Quantity 4.6.1.1 Measurement

3.4.4 Labels 4.6.2.1 Inspection

3.4.5 Packaging for Shipment 4.6.2.2 Inspection

3.5.1 Preproduction Samples* 4.5.1 Test

3.5.2 Production Lot Samples* 4.5.2 Test

3.6 Workmanship 4.5.2.4 Inspection

*Preproduction and Production samples

0nly

See Paragraphs 4.4.1 and 4.4.2

4.6 Inspection Procedures.

4.6.1 Sample Inspection.

The Contractor shall inspect each sample unit in accordance with the inspection schedule of Table I on an individual basis starting with the general inspections of paragraph 4.6.2.

The actual test measurements from the following paragraphs shall be recorded as required in paragraph 4.4.2.

4.6.1.1 Quantity.

The Contractor shall certify, in writing, signed by the

Contractor's official Quality Control Representative, acknowledging that the quantity of Propylene Glycol in each container complies with the requirements of paragraph 3.4.3.

4.6.1.2 Specific Gravity Test.

The Contractor shall determine the specific gravity of the

Propylene Glycol at room temperature using at Fisher Scientific model 1065 Hydrometer or equivalent for compliance with the requirements of paragraph 3.3.2.

4.6.1.3 Chemical Properties.

The Contractor shall determine the Ph value of the Propylene

Glycol of each unit for compliance with the requirements of paragraph 3.3.1 as follows:

a. Dilute the contents from each sample unit with an equal amount of distilled water.

b. Determine the Ph value of the diluted Propylene

Glycol from each unit using conventional Ph test methods

(save samples for next test).

4.6.1.4 Low Temperature Test.

The Contractor shall pour each diluted unit into separate containers, and then place them in a low temperature box, operating at -30°F +/- 5°F. After 3 hours: the Contractor shall determine the compliance of each sample unit with the requirements of paragraph 3.2.1. Discard the test samples properly after results are recorded and witnessed.

4.6.1.5 Container.

The Contractor shall visually examine each sample container for deficiencies and measure its total capacity by filling the empty container with tap water for compliance with the requirements of paragraph 3.4.1.

4.6.2 General Inspection.

The Contractor shall conduct the following inspections on each unit of each lot prior to delivery to the Government for acceptance.

4.6.2.1 Labels/Printing.

The Contractor shall visually examine the labels/printing on each unit for compliance with the requirements of paragraph

3.4.4.

4.6.2.2 Packaging for Shipment.

The Contractor shall examine each carton for compliance with the requirements of paragraph 3.4.5.

4.6.2.3 Toxic Products.

The Contractor shall provide, in each carton, the toxicological data (MSDS) as required by paragraph 3.3.3.

4.6.2.4 Workmanship.

Prior to conducting the procedures of paragraph 4.6.1.1, the

Contractor shall visually examine each test sample for compliance with the workmanship requirements of paragraph 3.6:

a. Carton properly sealed and marked.

b. No evidence of leakage in any position.

c. MSDS present.

d. Container and label free of rough handling marks or smudges.

e. Seal installed in cap.

f. Proper installation of foil seal before opening.

g. Contents of the container free of impurities or sediment.

5 PREPARATION FOR DELIVERY

5.1 Preservation and Packaging.

Preservation and packaging shall be in accordance with

Federal Standard 102b, Level B. Preservation and packaging shall afford adequate protection against deterioration, and physical damage to the units during multiple reshipment, handling, and known storage conditions for periods of approximately but not exceeding 1 year.

5.2 Packaging Details.

The filled containers shall be packed with dividers in standard shipping cartons, two containers per carton including a copy of the MSDS. The cartons shall be protected from damage due to overstacking and tight strapping. The packing shall meet the requirements for continental U.S. shipment in accordance with commercial practice to insure carrier acceptance and safe transportation at the lowest surface rate to the NOAA warehouse in Kansas City, Missouri (or any other location in the contiguous U.S.).

5.3 Marking.

In addition to any special marking required by the contract, all cartons, shipping boxes, and crates shall be marked with letters at least 3/8-inch high and 3/16-inch wide in waterproof ink or paint to identify the contents in accordance with Federal

Standard 123d. Hand lettering is not authorized.

5.3.1 Special Marking.

In addition to the standard marking information, special marking shall be added as follows:

[NSN barcode (3 of 9 format)]

PROPYLENE GLYCOL

TWO 1-QT. PLASTIC BOTTLES

NSN: 6850-01-288-7922

WSN: D111-153

NWS SPEC. NO.: D111-153-SP004

CONTRACT NO.:

MANUFACTURER NAME (OPTIONAL)

DATE OF MANUFACTURE: MM/YY*

Manufacturer's name and address (optional)

*MM/YY represents the month (in one or two digits) and the year (in two digits).

6 NOTES

6.1 Intended Use.

The information in this section is for background and instructions to the Government Contracting Officer.

6.2 Ordering Data.

Procurement documents should state the specific title, number, and date of this specification and any exceptions.

6.2.1 Procurement Details.

Item description information is provided by paragraph 3.1.1.

6.2.2 Samples.

The preproduction and production samples (see paragraphs 3.5.1 and 3.5.2) must not be waived. Government approval of the preproduction sample test results are required prior to start of the production lot. Preproduction and production samples and test results should be addressed in the procurement document

(these samples are expended in testing and the effect on the net delivered lot should be considered).

6.2.3 Certifications and Reports.

The materials and process certification of paragraph

4.4.1 and the certification report of paragraph 4.4.2 are required deliverables.

6.2.4 Shipment.

The procurement document should require information on method of palletizing to assure undamaged containers.

A-1

APPENDIX A

CONTAINER LABELS

PROPYLENE GLYCOL FOR

RECORDING PRECIPITATION GAUGES

DATE OF MANUFACTURE: MM/YY* LOT NO.:_________

NATIONAL STOCK NO. 6850-01-288-7922

(Specification No. D111-153-SP004)

INSTRUCTIONS:

A. Gauge Preparation:

1. At the beginning of the season for snow or freezing temperatures, complete the following:

a. Remove and store funnel. Replace when season ends.

b. Empty, clean, and replace the bucket.

B Addition of Propylene Glycol:

1. FISCHER & PORTER GAUGE:

Pour contents of two of these containers into the collector.

DO NOT ADD WATER OR MAKE ADJUSTMENTS TO THE GAUGE AFTER

THE PROPYLENE GLYCOL HAS BEEN ADDED.

C. General

1. Stir the Propylene Glycol solution occasionally, especially after rain or snow, to mix well.

2. Empty the Fischer & Porter gauge only when it records near the 10-inch level. DO NOT ADJUST readings.

*MM/YY represents the month (in one or two digits) and the year (in two digits).

LABEL ONE

Specification. No. D111-153-SP003

A-2

CAUTION: Contains PROPYLENE-GLYCOL. Propylene-glycol may cause eye irritation. In case of eye contact immediately flush eyes with water for 15 minutes. If irritation persists after flushing, contact a physician. Prolonged contract with skin is essentially non-irritating. However, in case of contact with skin wash off with soap and water. If swallowed no adverse health effects are expected. However, do not induce vomiting since aspiration into the lungs may cause lipoid pneumonia. Do not store in open or unlabeled containers. Keep away from children and animals.

LABEL TWO

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