9-Exhibit 5 to Specifications - Specifications for Sodium Chloride.pdf
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- Attached to
- Sodium Chloride (Bulk Road Salt)
- Solicitation number
- 6100045558
- Issued by
- Beaver County, Pennsylvania
About this file
This document contains the specifications for sodium chloride roadway de-icer that the Commonwealth of Pennsylvania Department of Transportation requires suppliers to meet. The specification outlines the chemical composition, moisture content, and particle size distribution requirements for the sodium chloride. It also specifies that the sodium chloride must be uniformly treated with an anti-caking compound at a minimum concentration of 20 parts per million. Any sodium chloride that is not free-flowing and in usable condition upon delivery will be rejected.
The document provides detailed grading requirements for the particle size distribution of the mined rock salt, with 100% required to pass a 1/2" sieve and 95-100% required to pass a 3/8" sieve. Tolerance for variation from the specified particle size distribution after delivery is limited to 5 percentage points on each sieve size, except for the 1/2" and 3/8" sieves.
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Text version
Exhibit 5
COMMONWEALTH OF PENNSYLVANIA
DEPARTMENT OF TRANSPORTATION
SPECIFICATIONS FOR SODIUM CHLORIDE
APRIL 2014
Sodium Chloride Roadway De-Icer:
Sodium chloride Roadway De-Icier supplied under contract shall conform to the requirement of ASTM D632-12, Type 1, GRADE 1.
1. Moisture content shall not exceed 2.0% by weight for Mined Rock Salt
2. All sodium chloride uniformly treated with either of the following anti-caking compounds:
Yellow Prussiate of Soda-Sodium Ferro Cyanide or Prussian Blue-Ferric Ferro Cyanide. The anti-caking compound introduced uniformly throughout the sodium chloride at such a rate that a minimum of 20-PPM anti-caking compound is present.
3. Any sodium chloride that is not free-flowing and in usable condition upon arrival at its destination is rejected.
4. Physical Requirements.
Mined Rock Salt Chemical Composition:
Total chloride expressed as NaCL a minimum of 95.0%.
MINED ROCK SALT GRADING:
THE SODIUM CHLORIDE SHALL CONFORM TO THE FOLLOWING PARTICLE SIZE
DISTRIBUTION SPECIFICATIONS AS DETERMINED BY LABORATORY SIEVES.
PASSING A ½ “ SIEVE (12.50MM 100%
PASSING A 3/8” SIEVE ( 9.50MM) 95.0% - 100%
PASSING A N0.4 SIEVE ( 4.75MM) 20.0% - 90.0%
PASSING A NO.8 SIEVE ( 2.36MM) 10.0% - 60.0%
PASSING A NO. 30 SIEVE ( 0.60MM) 0.0% - 15.0%
PERMISSIBLE VARIATION IN THE CASE OF SODIUM CHLORIDE SAMPLES AFTER
DELIVERY TO THE PURCHASER: TOLERANCE FROM THE FOREGOING
SPECIFICED VALUE ALLOWED FOR GRADATION NOT TO EXCEED 5.0
PERCENTAGE POINTS ON EACH SIEVE SIZE EXCEPT THE 12.5 MM, (1/2 IN.) AND
9.5 MM (3/8 IN.).
Passing a ½ “ sieve (12.50mm 100%
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