Texas Comptroller of Public Accounts

Texas Comptroller of Public Accounts, Glenn Hegar

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Texas Specification No. 505-35-01

Effective Date: July 30, 1971

Reformatted: January 26, 1996




(For Automatic Fabric Washing Machines)

1. SCOPE: This specification covers the minimum requirements for a powdered or granulated, built, nonionic, biodegradable detergent with low sudsing characteristics for use in automatic fabric washing machines.

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: The built, nonionic, biodegradable detergent furnished under this specification shall meet or exceed the following minimum requirements:

4.1. Chemical Composition: The composition of the biodegradable detergent shall conform to the requirements shown in Table 1 when tested in accordance with the test procedures indicated in Table 3, Paragraph 6.



Chemical Ingredients Percent by Weight Minimum Percent by Weight Maximum
1. Nonionic Synthetic Organic Surfactant -- 100% Active 12.0 --
2. Polyphosphates, as P2O5 17.0 --
3. Orthophosphates, as P2O5 -- 5.0
4. Silicates, as SiO2 2.2 --
5. Sodium Carboxymethylcellulose 0.5 --
6. Matter Insoluble in Water -- 0.1
7. Brightener (Fluorescent Dye) Present Present
8. Soap, Sugars Absent Absent
  1. Biodegradability must be clearly indicated on the label (See Paragraph 7b).

4.2. Form: The detergent shall be furnished as a substantially dry, free flowing material in either bead, granular or powder from.

4.3. Rate of Solution and Solubility: The soluble material of a one (1) percent solution, by weight, shall be completely dissolved in tepid distilled water (110 °F) in three (3) minutes. The insoluble matter shall not be more than 0.1 percent when tested in accordance with Paragraph 6.

4.4. pH: The pH value of a 1.0 percent solution of the detergent in distilled water shall be not less than 9.2 nor more than 10.6 at 77 °F when tested as specified in Paragraph 6.

4.5. Chemical and Physical Properties: The floor sealer shall conform to the following minimum chemical and physical requirements when tested according to Paragraph 6.

4.6. Foam Height: A 0.2 percent solution of the detergent at a temperature of 120 °F shall produce the foam height (lather value) shown in the following Table 2 when tested as specified in Paragraph 6.



In 50 ppm Soft Water In 50 ppm Soft Water
At Once After 5 Minutes
4.0 Maximum 4.0 Maximum
  1. Divide ppm by 17.15 to obtain grains per gallon.

4.7. Container Sizes: The detergent shall be furnished in well constructed containers. The container sizes shall be:

(1) Five (5) pound box; 10 boxes per case

(2) 50 pound box or bag

(3) 100 pound bag

4.8. Purchase Unit: The purchase unit shall be net weight in pounds.

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. Chemical Analysis: The chemical components of the detergent, unless otherwise specified, shall be determined by the following paragraphs in Federal Specification No. P-D-245a and the following methods in Federal Test Method Standard No. 536:



Chemical Compound Federal Specification No. P-D-245a Paragraphs Federal Test Method Standard No. 536 Methods
Nonionic Synthetic Organic Surfactant 4.4.2 6501
Polyphosphates 4.4.3. and 4.4.4. 1501.10
Orthophosphates 4.4.5. --
Silicates -- 1301.00
Sodium Carboxymethylcellulose 4.4.6. --
Soap -- 5601.1
Sugar -- 1701

6.1.2. Rate of Solution and Matter Insoluble in Water: A 1.5000 ± .005 g sample is weighed in a 250 ml beaker. Heat 150 ml of distilled water to 115-120 °F. The heated water is added to the detergent with a magnetic stirrer on a stir plate. At the end of three (3) minutes, if there is any insoluble material, the solution is filtered through a tarred filter paper. To insure that all the insoluble residue is transferred to the filter paper, the beaker should be rinsed, onto the filter paper, with less than 20 ml of cool distilled water. The filtrate is then dried at 105 °C to constant weight, and the matter insoluble calculated. The weight of the insoluble matter shall not exceed 0.1 percent.

6.1.3. Optical Brightener: Wet a four (4) inch square cotton swatch with a 0.25 percent by weight solution of the sample, rinse and air dry. Examine swatch under an ultra violet light for fluorescence and brightening effect.

6.1.4. pH: The pH value shall be determined in accordance with ASTM Specification No D-1172.

6.1.5. Foam Height: The foam height shall be tested in accordance with ASTM Specification No. D-1173, using a 0.2 percent solution in water of 50 ppm at 120 °F.

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.


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

9.1.1. Name of contents.

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 and address of the manufacturer.

9.2.2. Name of the product.

9.2.3. Net amount contained, in pounds.

9.2.4. Biodegradable.

9.2.5. The manufacturer's directions for use in detail.

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

11.1. The number of this specification (505-35-01).

11.2. Quantity desired, total pounds.

11.3. Size container desired.

12. 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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