These revisions to UL 852 are being issued to incorporate the following new and revised requirements:
1. Deletion of Section 12 (titled "Flexure tests");
2. Editorial Revision of Table 15.1 (titled "Hydrostatic test pressures");
3. Revision of Requirements for the Vibration Test in Paragraphs 16.2 and 16.3 and Figure 16.1;
4. Revision of Requirements for the Hydrostatic Test in Section 21; and
5. Revision of Marking Requirements in Section 22.
6. Deletion of ISBN number.