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485/54-09a

Texas Specification No. 485-54-09A

Effective Date: August 10, 1983

Reformatted: February 7, 1996

Specification

for

FLOOR FINISH REMOVER -- CONCENTRATE

1. SCOPE: This specification establishes the minimum requirements for a concentrated liquid product suitable for use, after dilution with water, in stripping old polymer emulsion finishes from floor surfaces.

2. APPLICABLE SPECIFICATIONS AND STANDARDS: References to specifications, standards and test methods shall be to the issues in effect on the date of the Invitation for Bids. Copies of the referenced documents may be ordered from the issuing organizations at the addresses shown. The following documents form a part of this specification to the extent specified herein:

2.1. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM), 1916 Race Street, Philadephlia, PA 19103:

2.1.1. ASTM D 1122 -- Standard Test Method for Specific Gravity of Engine Antifreezes by the Hydrometer.

2.1.2. ASTM D 1436 -- Standard Methods for Application of Emulsion Floor Polishes to Substrates for Testing Purposes.

2.1.3. ASTM D 1792 -- Standard Test Method for Long Term Removability Properties of Emulsion Floor Polishes.

2.1.4. ASTM E 70 -- Standard Test Method for pH of Aqueous Solutions with the Glass Electrode.

2.2. TEXAS SPECIFICATIONS, Texas Procurement and Support Services, P.O. Box 13186, Austin, TX 78711:

2.2.1. Texas Specification No. 180-12-04 -- Monoethanolamine.

2.2.2. Texas Specification No. 180-34-01B -- Sequestering Agent - EDTA Tetrasodium Salt.

2.2.3. Texas Specification No. 180-58-02A -- Sodium Hydroxide (Caustic Soda) 50% Solution.

2.2.4. Texas Specification No. 180-88-02A -- Ethylene Glycol Monobutyl Ether.

2.2.5. Texas Specification No. 180-92-12A -- Surfactant - Linear Alkylate Sulfonic Acid.

2.2.6. Texas Specification No. 485-54-08A -- Floor Finish, Metal Crosslinked Polymer Type.

3. DEFINITIONS:

3.1. General Definitions: Terminology used in this specification is intended to be generic in nature and consistent with meanings that have been defined through general use and/or accepted trade practices. Where variant meanings may exist, the applicable interpretation shall be determined by the Texas Procurement and Support Services (TPASS).

3.1.1. Commission: Texas Procurement and Support Services (TPASS).

4. REQUIREMENTS: Floor finish remover furnished under this specification shall meet or exceed the following requirements:

4.1. General Requirements: The product shall be a clear liquid, free from sediment and suspended foreign matter.

4.2. Chemical Composition: The product shall be formulated from raw materials conforming to the cited Texas Specifications, in the proportions ( 0.2 pbw) specified in Table 1.

TABLE 1

CHEMICAL COMPOSITION

Ingredient Percent by Weight Texas Specification No.
1. Sodium hydroxide, 50% 6.0 180-58-02A
2. Linear alkylate sulfonic acid 2.0 180-92-12A
3. Monoethanolamine 11.5 180-12-04
4. Ethylene glycol monobutyl ether 10.0 180-88-02A
5. EDTA Tetrasodium salt 1.0 180-34-01B
6. Soft Water 69.5 --

Note: A small amount of water soluble colorant may also be added, at the manufacturer's option.

4.3. Test Requirements: The product shall conform to the requirements of Table 2, when tested by the methods cited in Paragraph 6.

TABLE 2

TEST REQUIREMENTS

Requirement Minimum Maximum Test Paragraph
1. Specific gravity, 20/20 C 1.030 1.035 6.1.
2. pH in 1% aqueous solution 11.2 11.8 6.2.
3. Total alkalinity as Na2O, pbw 7.4 8.0 6.3.
4. Monoethanolamine content, pbw 11.0 12.1 6.4.
5. Hard water stability pass -- 6.50
6. Rinsability pass -- 6.6.
7. Floor stripping efficiency, oscillations required -- 50 6.7.
  1. percent by weight (pbw

5. SAMPLES: Unless otherwise specified in the Invitation for Bids, no prepurchase samples shall be required. Samples tested shall be taken from regular orders.

6. TESTING: Testing shall be done by or at the direction of, the Commission and/or the receiving State agency. Tests shall be performed on products from shipments to ordering agencies. In the event products tested fail to meet or exceed all conditions and requirements of this specification, the cost of the samples used and the cost of testing shall be borne by the supplier.

6.1. Test: Compliance with the requirements of Table 1 shall be determined by the following methods or approved equally applicable procedures:

6.1.1. Specific Gravity: Determine with an ASTM hydrometer calibrated at 15.5/15.5 C (60/60 F), with the exception that the test may be run at the ambient laboratory temperature, provided they hydrometer has been checked against distilled water at the same temperature and a correction is applied as necessary.

6.1.2. pH: Weight out accurately a one gram sample into a 150 ml beaker. Dilute to 100 ml with distilled water, and determine pH by the procedure of ASTM E 70.

6.1.3. Total Alkalinity: Transfer the solution used in the pH test (Paragraph 6.1.2.) quantitatively to a 250 ml Erlenmeyer flask. Titrate with standard 0.1 H CHl to the methyl orange end point. Determine the result by means of the formula:

% Na2O = ml titrant x normality x 3.1 / gram sample

6.1.4. Monoethanolamine Content: Pipette 0.5 ml of concentrate into a one liter volumetric flask. Dilute to one liter with deionized water, and mix thoroughly. Pipette one ml of the resulting solution into a test tube. Add one ml each of 0.05% ascorbic acid, 1% ninhydrin, and purified pyridine. Prepare a blank containing the same reagents, but with one ml deionized water in place of the sample. Immerse both test tubes in boiling water for 25 minutes, then cool in an ice bath for two minutes. Transfer the contents of each tube to a 100 ml volumetric flask, and fill up to the mark with deionized water. Measure increase in absorptivity at 584 nm of the sample as compared with the blank, using a photometric colorimeter. Read monoethanolamine content from a calibration curve prepared by running samples of known concentration.

6.1.5. Hard Water Stability: Prepare synthetic hard water (400 ppm as CaCO3) from 0.392 gram calcium chloride dihydrate and 0.329 gram magnesium sulfate heptahydrate per liter of solution in deionized water. Dilute 10 l floor finish remover concentrate with 100 ml synthetic hard water, and mix thoroughly. Any precipitation or turbid appearance constitutes failure to pass Paragraph 4.3. Same the diluted solution for use in Test 6.1.6.

6.1.6. Rinsability: Pour 100 ml of the diluted floor finish remover from the previous test into a clean, dry 250 ml Erlenmeyer flask. Stopper the flask, shake vigorously for one minute, and pour out the contents. Rinse the interior of the flask by gentle swirling with three 75 ml portions of synthetic hard water. Allow the flask to dry in an inverted position. Rinse and dry another flask in the same way, without first applying the floor finish remover. A significantly greater amount of residue left on the first flask constitutes failure to pass Paragraph 4.3.

6.1.7. Floor Stripping Efficiency: Cut a 3 x 6 inch test panel from smooth, black vinyl asbestos floor tile (OTVAT -- Official Test Vinyl Asbestos Tile obtained from Chemical Specialty Manufacturers' Association, Inc., Washington D.C. 20036, or approved equal). Apply an 8 ml coating of metal crosslinked floor finish (Texas Specification No. 485-54-08A, standard grade), subject the finish to accelerated aging, and test on the Gardner straight line washability machine by the procedure of ASTM 1792, Paragraphs 7 and 8. Use a 1:20 dilution of the floor finish remover in distilled water in place of the stripper solution called for in Paragraph 4 of the test procedure. To pass Paragraph 4.3., the product is required to rate "excellent", showing complete removal of the coating in a maximum of 50 oscillations (cycles of two strokes, one in each direction), and the stripped panel must show no visible sign of damage.

7. INSPECTION: Products furnished under this specification shall be inspected by, or at the direction of the Commission and/or the ordering State agency either at the destination or place of manufacture.

8. PACKING / PACKAGING: Packing for shipment shall be in accordance with the manufacturer's standard practice and in a manner readily accepted by common carriers engaged in interstate commerce and as specified in the Invitation for Bids.

8.1. Packing: The product shall be packaged in one of the following types of containers, whichever is specified in the Invitation for Bids:

8.1.1. One (1) gallon plastic jugs.

8.1.2. Five (5) gallon plastic jugs.

Shipments in fulfillment of option 8.1.1., above, shall be supplied in 275 pound test pasteboard shipping cartons with 250 pound test inserts.

9. MARKING / LABELING:

9.1. MARKING: Each shipping container shall be clearly marked with the following:

9.1.1. Name of contents, including brand name, if any.

9.1.2. Quantity contained.

9.1.3. Name and address of the manufacturer.

The following information shall either be marked on the container or appear on the shipping documents:

9.1.4. Order number or contract number.

9.1.5. Name and address of ordering agency.

9.1.6. Agency requisition number.

9.2. LABELING: Each product container shall bear a securely affixed and durable label showing the following:

9.2.1. Name of the product, including brand name, if any.

9.2.2. Name and address of the manufacturer.

9.2.3. Net contents.

9.2.4. Instructions for use, including precautionary statements as required by governmental regulations.

10. COMPLIANCE: In order for consideration to be given to the bid on an item under this specification, the bidder must comply with the following:

10.1. PRODUCT IDENTIFICATION: The make, model number, name of the manufacturer, brand or trade name, etc., as applicable, of the item which the vendor proposes to furnish must be stated as part of the bid.

10.2. EXCEPTIONS: Notwithstanding the above, any exception taken by the bidder to the requirements and conditions of this specification must be stated and described in detail as a part of the bid. If no exceptions or deviations are identified in this manner, the items must be furnished exactly as described herein.

10.3. PROOF: The bidder shall bear the burden of proof of compliance with this specification.

11. PRODUCT INFORMATION: Floor finish remover complying with this specification is effective for stripping modern floor finishes, including metal crosslinked polymer finishes of the type covered by Texas Specification No. 485-54-08A. As a strongly alkaline material, it should be handled with care in order to avoid contact with the skin or eyes. Follow the label instructions with regard to dilution for use, precautions in handling, etc.

12. ORDERING DATA: When ordering products conforming to this specification the requisitioning agency shall specify the following:

12.1. The number of this specification (485-54-09A).

12.2. The size of container required.

12.3. The total quantity required.

13. AVAILABILITY OF SPECIFICATIONS: Copies of this specification may be obtained by calling or writing:

Bid Services

Texas Procurement and Support Services

P.O.Box 13186

Austin, TX 78711-3047

(512) 463-3416

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