Texas Specification No. 365-10-02
Effective Date: December 27, 1972
Reformatted: December 13, 1996
PADS, FLOOR MAINTENANCE (THICK)
1. SCOPE: This specification establishes four (4) classes of floor maintenance pads, made from nylon and/or polyester fibers, and intended for use on power driven rotary disc type floor maintenance machines for polishing, buffing, scrubbing, and stripping various types of floors.
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.
3. 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. COMMISSION: Texas Procurement and Support Services (TPASS).
4. REQUIREMENTS: Floor maintenance pads furnished under this specification shall meet or exceed the following minimum requirements:
4.1. CLASSES: The four (4) classes of floor maintenance pads covered by this specification shall be as shown below. The class (es) to be furnished shall be as specified in the Invitation for Bids.
4.1.1. Class One (1): Polishing
4.1.2. Class Two (2): Buffing (Wet or Dry)
4.1.3. Class Three (3): Scrubbing
4.1.4. Class Four (4): Stripping
4.2. COLORS: In order to achieve a standard color code throughout the State of Texas, each class of pads shall have a different color. The color for each class of pads shall be as follows:
4.2.1. Class One (1): White or Tan
4.2.2. Class Two (2): Red or Plum
4.2.3. Class Three (3): Green or Blue
4.2.4. Class Four (4): Brown or Black
4.3. THICKNESS: All classes of pads shall have a minimum "new condition" thickness of 7/8 inch when tested in accordance with Paragraph 6.1.1. Each class of floor pads shall have a minimum "under load" thickness as shown in Table 1, Minimum Thickness, when tested in accordance with Paragraph 6.1.2.
|Class||Type||Minimum Permissible Thickness Before Loading (Inches)||Minimum Permissible Thickness Under Load (Inches)|
|Class One (1)||Polishing||.875 (7/8)||.625 (5/8)|
|Class Two (2)||Buffing||.875 (7/8)||.703 (45/64)|
|Class Three (3)||Scrubbing||.875 (7/8)||.828 (53-64)|
|Class Four (4)||Stripping||.875 (7/8)||.828 (53-64)|
4.4. SIZES: All classes of floor maintenance pads shall be available in the sizes indicated in Table 2, Sizes. The size (s) to be furnished shall be as specified in the Invitation for Bid.
|Size No.||Diameter, Inches ( ± 1/8 inch)|
4.5. MATERIALS: The fibers of the floor pads shall be nylon and/or polyester fibers of suitable denier for the class of pad specified. The abrasives shall be either natural or synthetic particles. The bonding adhesives used shall be of top quality and suitable for the application. All materials shall be of such quality and strength to produce a cohesive pad that will meet or exceed the physical and performance requirements of this specification.
4.6. DESIGN AND CONSTRUCTION:
4.6.1. General: The floor maintenance pads shall consist of nylon and/or polyester fibers, natural or synthetic abrasive particles (when applicable), and suitable boding adhesives, all of first class quality and all suitable and adequate for the purpose (s) intended. The abrasive particles shall be evenly distributed throughout the pad. (See Paragraph 6.1.3. for Abrasive Distribution Test). All pads shall be constructed in accordance with the best recognized commercial practices. The materials used shall not support the growth of bacteria and must be of such denier, density, strength, quality and workmanship to produce a cohesive pad, uniform in structure and reversible (with equal performance on each side). The pads shall withstand repeated washings in strong detergent-ammonia (stripping) solutions for removal of accumulated was, dirt, etc. and the matrix shall retain its original condition after rinsing with water using a spray nozzle (maximum pressure 100 psi) and drying. Also, the pads shall not disintegrate in water, detergent solutions, oil, was, or other materials normally encountered in floor maintenance operations, and shall successfully pass the Water and Chemical Resistance Tests specified in Paragraph 6.1.4. the pads shall be designed and fabricated for use on rotary disc type electric motor driven floor maintenance machines and shall be sufficiently resilient as to contact the floor over their entire area when in use under normal load. The pad construction shall be such that no separation or layering between fibers, no wrinkling, and no lapping will occur under normal operating conditions. Each pad shall have a scored center hole (plug left in place) of 3-1/2 inches diameter ( ± 1/8 inch).
18.104.22.168. Class One (1) Polishing Pads: Pads shall contain no abrasives or fillers and shall be suitable for dry polishing various types of floors including ceramic tile, marble, terrazzo, and asphalt, cork, rubber, or vinyl tiles or coverings.
22.214.171.124. Class Two (2) Buffing (Wet or Dry) Pads: Pads shall contain a relatively non-abrasive filler, of controlled particle size, and shall be suitable for spray buffing or dry buffing the various types of floor specified in Paragraph 126.96.36.199.
188.8.131.52. Class Three (3) Scrubbing Pads: Pads shall be uniformly impregnated with a finely graded abrasive scouring agent and shall be suitable for scrubbing various types of floors. Class 3 pads shall remove they crayon marks in eight or less passes when tested in accordance with Paragraph 6.1.5.
184.108.40.206. Class Four (4) Stripping Pads: Pads shall be uniformly impregnated with a crushed abrasive scouring agent and shall be suitable for scrubbing, scouring, and stripping various types of floors. Class 4 pads shall remove the crayon marks in seven or less passes when tested in accordance with Paragraph 6.1.5.
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. TESTS: The product furnished under this specification shall be tested by the following methods or approved equally applicable procedures:
6.1.1. Thickness Test: Remove maintenance pads from shipping containers or other enclosures and cut four (4) pieces four inches by four inches (4" x 4") square from each pad to be tested. Before testing, each cut-out is conditioned for a minimum for 72 hours to ensure that irregularity in thickness caused by storing or shipping is eliminated. Conditioning is achieved by placing the cut-out on a flat level hard surface and allowing it to remain in that position for 72 hours at room temperature (70 ° to 80 °F.) with a relative humidity of 50% ( ±5%).
After 72 hours has elapsed, place a mild steel leveling plate (5" x 5" x 7/64" thick), properly centered, on the specimen being measured. Wait one minute, and measure distance from the flat surface to the bottom edge of each of the four corners of the leveling plate. Record the reading at each corner, average the four readings and record the average obtained as the thickness of the specimen being measured. Repeat the procedure using the other three (3) cut-outs from the same pad. Average the four results and report as the thickness of the pad being tested. If the pad being tested meets the requirements as specified in Paragraph 4.3., Table 1, Minimum Thickness, proceed with testing as outlined in Paragraph 6.1.2., Thickness Under Load Test.
6.1.2. Thickness Under Load Test: The same test specimens which are conditioned and tested in accordance with Paragraph 6.1.1. are also used for this test. Each specimen is then conditioned for an additional one (1) hour (flat level hard surface, room temperature (70 ° to 80 °F.), relative humidity of 50% ( ±5%) ) after testing as specified in Paragraph 6.1.1. After one (1) hour has elapsed, place a mild steel leveling plate (5" x 5" x 7/64" thick) properly centered on the specimen. Next, place an eight (8) pound uniform 4" x 4" square weight on top of the leveling plate so positioned that the weight is centered over the specimen below the leveling plate.
(Note: A satisfactory 4" x 4" square weight can be made by stacking pieces of sheet metal one on top of the other until a total weight of eight pounds is achieved. Cellophane tape the pieces together for ease of handling and positioning.) Wait one minute. Measure the distance from the flat surface to the bottom edge of each of the four corner of the leveling plate. Record the reading at each corner, average the four readings and record the average obtained as the "under load" thickness of the specimen. Repeat the procedure using the other three (3) cut-outs from the same pad. Average the four results and report as the "under load" thickness of the pad being tested. (See Paragraph 4.3., Table 1, Minimum Thickness, for requirements.)
6.1.3. Abrasive Distribution Test: Die cut a 2" x 4" sample from each pad to be tested. Slice the sample horizontally through its thickness dimension to produce three layers of equal thickness. Weigh each layer to the nearest centigram and record. Ash each layer separately by a suitable procedure to obtain only the abrasive content of each layer. weigh the abrasive residue of each layer to the nearest centigram and record. Determine the percent of abrasive in each layer by using the following formula:
A x 100 = % of abrasive
Where: A = abrasive content of layer.
B = original weight of layer.
Deviation between layers shall not exceed 10%.
6.1.4. Water and Chemical Resistance Test: A one inch square sample of the pad is cut out and the following tests are performed consecutively with the same sample.
220.127.116.11. Water: Each sample shall be immersed in boiling water for 10 minutes. Note any degradation.
18.104.22.168. Alkali Resistance: Each sample is then submersed for 5 minutes in a 5% sodium hydroxide solution maintained at 150 °F. Rinse each sample with cold water and allow to dry. Note any further degradation.
22.214.171.124. Mineral Spirits: After drying, each sample is immersed in mineral spirits (B.P. 165 °C) at 73 °F for 5 minutes. Samples are removed and their final condition recorded after drying.
The matrix or finished product shall show no apparent degradation when immersed in any of the test solutions.
6.1.5. Scrubbing Test: (For Class Three (3) and Four (4) Pads Only) The test floor panel and standard test machine for use in Paragraph 126.96.36.199. and Paragraph 188.8.131.52. shall be specified herein.
A test floor panel for this test may be constructed by applying 9" x 9" squares of 1/8" thick vinyl floor tiles to a 4' x 8' sheet of 3/4" plywood. The center tile should be left loose so that it can be removed and the various test tiles inserted as required.
The standard test machine shall be a commercial floor polishing machine which will exert a pressure of 0.40 to 0.52 pounds per square inch over the entire area of the pad being tested while operating at 175 to 225 revolutions per minute. Additional weight may be added to the test machine in order to meet the pressure requirements, provided the weight is evenly distributed around the circumference of the machine and the revolutions per minute are within the specified operating range.
184.108.40.206. Accelerate Wear Test: On the test floor panel (with the removable center tile in place), one strip of 3M Company's Safety Walk (Type B, black, medium grade, size 6" x 24") is placed in the approximate center of the test floor panel. The Safety Walk is positioned by centering on the removable test tile, with its long dimension perpendicular to the direction of machine travel. Each pad is then tested using the following procedure: Pour four (4) ounces of water on the Safety Walk. Using the standard test machine, the entire area of each pad to be tested is passed over the Safety Walk strip at the rate of 20 passes per minute. At the end of five minutes, two (2) additional ounces of water are added to the Safety Walk. At the end of ten minutes, the pads shall be whole and sound and shall successfully pass the aggressiveness test.
220.127.116.11. Aggressiveness Test: The 3M Safety Walk strip is removed from the test panel and the test panel surface cleaned thoroughly. A stripped white official test vinyl tile (OTVAT, as manufactured by Chemical Specialties Manufacturer's Association, 50 East 41st Street, New York, NY 10017) is placed in the removable center square of the test panel. For each pad to be tested, apply with a red Crayola was crayon (manufactured by Binney & Smith, Inc., 380 Madison Avenue, New York, NY 10017) five (5) crayon marks approximately six inches long and two inches apart on the OTVAT, perpendicular to the direction of machine travel. The crayon marks shall be applied with normal and consistent degree of pressure (maximum pressure without caking or breaking crayon). Pour one (1) ounce of water on the crayon marks and proceed with the test by passing the standard test machine with appropriate test pad (scrubbing or stripping) over the crayon marks at the rate of 20 passes per minute (test machine should not be heeled while conducting this test). Class 3 (scrubbing) pads shall remove the red crayon marks within eight (8) passes. Class 4 (stripping) pads shall remove the red crayon marks within seven (7) passes.
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. Within the shipping carton, units shall be packed in a manner designed to minimize damage during the shipment because of rough or improper handling.
8.1. PACKING: The pads shall be packaged five (5) pads per box, all pads of the same class, color and size. The number of boxes per shipping carton shall be the option of the supplier.
9. MARKING / LABELING:
9.1. MARKING: Each shipping container shall be clearly marked with:
9.1.1. Name of contents.
9.1.2. Quantity contained.
9.1.3. Size (diameter) of pad.
9.1.4. Name and address of the manufacturer.
The container or shipping documents shall include:
9.1.5. Order number or contract number.
9.1.6. Name and address of ordering agency.
9.1.7. Agency requisition number.
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: It is recommended that the using agency standardize on the 7/8 to 1 inch thick pads as covered by this specification. The use of "thin-line" pads is discouraged due to unsatisfactory results obtained with their use in the past.
Each class of pads has been standardized with a permanent color code to make identification by maintenance personnel easier and consistent throughout the State of Texas.
With the use of Class Two (2) Buffing (Wet or Dry) pads in spray buffing operations it is recommended that the polishing and scrubbing machine used be no larger than a Size No. 3 machine (20" maximum brush diameter, one horsepower motor) as specified in Texas Specification No. 365-30-01. this will prevent overheating, tripping of circuit breaker or motor burn-out due to an extra drag in spray buffing operations.
The pads should be cleaned immediately after use to prevent loading of the pad and to increase its life and serviceability. The pads should be cleaned with hot water using a spray nozzle to free dirt and other matter which has been loaded by the pad. In may instances, the pads load with wax or polish particles which are very difficult to remove by water alone. In this case, the pads may be cleaned by soaking approximately one (1) hour in a mild stripping solution such as six (6) ounces of General Purpose Cleaner, Texas Specification No. 485-16-03, and one fourth (1/4) cup of household ammonia per gallon of hot (130 ° to 140 °F) water. Pads should then be rinsed thoroughly with hot water using a spray nozzle (maximum pressure 100 pounds per square inch) and dried thoroughly before use. (Pads may soften while in solution but original condition will return after drying.) Under no circumstances should the pads be cleaned with any type of brush which tends to destroy or loosen the fibers of the pad as this will decrease the serviceability of the pad.
12. ORDERING DATA: When ordering products conforming to this specification the requisitioning agency shall specify the following:
14.1. The number of this specification (365-10-02).
14.2. Quantity desired. (See Paragraph 00, Order in multiples of five (5) for each Class and Size.)
14.3. Class Number (s). (See Paragraph 00.)
14.4. Size Number (s). (See Paragraph 4.2.)
13. AVAILABILITY OF SPECIFICATIONS: Copies of this specification may be obtained by calling or writing:
Texas Procurement and Support Services
Austin, TX 78711-3047