| ASTM D3933 | : Standard Guide for Preparation of Aluminum Surfaces for Structural Adhesives Bonding (Phosphoric Acid Anodizing) | Chemical Processing |
| Supercedes: None | Superceded By: None |
| Number | Name | State | Country |
| 90065231 | Flare Group Corporation dba Aviation Equipment Processing | CA | United States |
| 90070227 | Poly-Metal Finishing, Inc. | MA | United States |