5-Attachment No. 5 Phosphoric Acid Specifications.pdf

GLWA Specification for 75% Phosphoric Acid

1. Scope and Classification

Scope - This information describes the required seventy-five percent (75%) phosphoric acid for use in drinking water by the Great Lakes Water Authority.

2. Applicable Documents, Standards and Specifications

2.1 The following document(s), standard(s), or specification(s) shall apply:

Material(s) covered by this Invitation shall comply with all Federal Occupational Safety and Health Acts, and Michigan Occupational Safety and Health Act requirements, where applicable and in effect at time of delivery.

2.2 The proposed product to be supplied shall have the United States Environmental Protection Agency (U.S.E.P.A.) approval to use in the treatment process for drinking/potable water and approval of the Michigan Department of Public Health, if applicable.

2.3 The product must have the N. S. F. approval. Document of N.S.F. Certification and/or Submission for Approval shall be required

3. Requirements

Material to be supplied shall be seventy-five percent orthophosphoric acid.

The material shall have the following chemical and physical compositions:

• H3PO4 Not less than 75%

• Phosphate as (P2O3) Not less than 54.3%

• Phosphate as metaphosphate (PO 4) Less than 1%

• Phosphate as polyphosphate (PO 4) Less than 1%

• Zinc as (ZnO) Less than 0.01%

• Zinc as (Zn) Less than 0.0 1%

• Silicate as (S 1O2 ), ppm Less than 0.1

• Fluoride as F, ppm Less than 3

• Arsenic as (As), ppm Less than 3 max

• H2S, ppm Less than 0.1

• NO3, ppm Less than 5

• Heavy metals, ppm Less than 5

• Volatile Acids, ppm Less than 10

• Iron (Fe), ppm Less than 10

• Reducing Substances, ppm

• Alkali Phosphates Passes NF x 1 test

• APHA color 10 max

• Odor None

• Specific Gravity at 25.5C/15.5C 1.57 min.

• Melting Paint, C -17.5

• Specific Heat, Cal/gm C at 21.3C 0.488

• Viscosity, Centistokes at 25C 12

• The material shall be free of any foreign materials.

• The material shall have turbidity not greater than 10 N.T.U.

• the material shall have no chlorine demand.

• The material shall not freeze above 0.5F (-17.5C).

All ingredients must be of food grade quality.

The phosphate supplied in accordance with these specifications shall contain no soluble mineral or organic substance in quantities capable of producing deleterious or injurious effect upon the health of those consuming water that has been properly treated with phosphate.

4. Sample Before Delivery

A one-liter sample is required to be analyzed by the water treatment plant lab before accepting each delivery.

5. Delivery

• Phosphoric Acid will be delivered upon request and any agreement approved during the contract will be followed until the contract expires.

• Delivery should be within five (5) days of request and phosphoric acid will be delivered in tank truck.

• SDS Sheets are to be included with the shipment.

• The quantity of phosphoric acid delivered each time shall not exceed 3600 gallons.

The following documents shall be provided at each delivery of the product:

• Tank wagon certificate of cleanliness

• Scale ticket showing the weight of acid deliver

• Certificate of analysis of the 75% Phosphoric acid