A-A-33 Scale Removing Compound (Liquid)This CID covers a liquid form scale removing compound, hereafter referred to as "compound," intended for removing scale deposits from environmental surfaces, commercial dishwashing machines, and boiler coilers. This compound can be used in laboratories, food handling and processing areas, veterinary areas, and dairy plants.

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6.1 Referenced documents. American Society for Testing and Materials (ASTM)

D820 – Standard Test Methods for Chemical Analysis of Soaps Containing Synthetic Detergents
D1331 – Standard Test Methods for Surface and Interfacial Tension of Solutions of Surface-Active Agents
D2834 – Standard Test Method for Nonvolatile Matter (Total Solids) in Water-Emulsion Floor Polishes, Solvent-Based Floor Polishes, and Polymer Emulsion Floor Polishes
D4608 – Standard Test Method for Citrates in Detergents
E70 – Standard Test Method for pH of Aqueous Solutions with Glass Electrode

Copies of these documents can be obtained online at https://www.astm.org or from American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.

6.2 Ordering data. Acquisition documents must specify the following: a. Title, number, and date of this CID.

b. The specific issue of individual documents referenced, if required.

c. Packing requirements.

6.3 Cross-reference data. Scale removing compound conforming to this CID is interchangeable/substitutable with scale removing compound conforming to P-S-120B, type II, dated April 8, 1977 (cancelled October 17, 1997 with supersession by this document). MILITARY INTERESTS: CIVIL AGENCY COORDINATING ACTIVITY: GSA-FAS Custodian: Preparing Activity: DLA – GS DLA – GS3 (Project 6850-2009-009)