New UL 796 Released on Printed-Wiring Boards

The new UL-796 10th Edition on Printed Wiring Boards has just been released as of 10/8/2010.  This is one of Document Center’s best selling UL standards.  It covers both rigid and flexible boards.

The new edition covers the following material:

Revision to and Addition of Terms in Glossary

Clarification of Requirements for Standard Atmospheric Test Conditions in Paragraph 4.2

Clarification of Requirements for Acceptability of Printed Wiring Boards in Paragraph 7.1

Clarification of Requirements Regarding Base Material Relative Thermal Index in Paragraph 9.1.3

Clarification of Requirements for Base Material Sample Thickness Tolerances in Table 9.2

Addition of Requirements for the Condition of “As-Received Samples” in Paragraph 9.1.7

Clarification of Requirements for Metal-Clad Base Material in Section 9.2

Clarification of Requirements for Conductors in Paragraphs 10.2.1 and 10.6.1

Modification of Thickness of Edge Conductor in Figure 10.1

Clarification of Requirements for Plated Contact Fingers in Section 10.9

Clarification of Requirements for Multi-site Processing in Paragraph 12.2.1

Clarification of Requirements in Paragraphs 14.1 and 14.2 and Addition of Table 14.1 and Figures 14.1, 14.2, and 14.3 to Illustrate Requirements for Plugged-Hole Materials

Clarification of Requirements for Dissimilar Dielectric Material Bond Strength in Paragraph 17.6.1

Clarification of Requirements for the Evaluation of Metal Base Printed Wiring Boards in Section 18

Clarification of Requirements for Maximum Internal Copper Test Program in Paragraph 21.6

Clarification of Requirements for Conductor Measurements in Paragraphs 22.1, 22.4, and 22.5

Clarification of Requirements for Microsection Analysis in Paragraph 23.3.3

Clarification of Requirements for Flammability Classification in Paragraph 25.1.2

Clarification of Requirements for Bond Strength Temperature in Paragraph 26.3.1

Clarification of Requirements for Thermal Cycling Scheduling in Table 30.1

Clarification of Requirements for HDI Printed Wiring Board Constructions in Section 31; Addition of Table 20.10

Clarification of Requirements for Silver Migration Test in Paragraphs 32.2.1 and 32.2.5

Clarification of Marking Requirements in Paragraphs 33.2, 33.3, 33.6, and 33.10

Copies may be purchased on our website at www.document-center.com, by phone at 650-591-7600, via fax at 650-591-7617 or by emailing us at info@document-center.com.