Your product must be listed and labeled by UL. You cannot claim your product meets the "new" standard based solely on your internal testing. The official UL PDF describes the witness requirements—a UL engineer must watch the test.
When a glazing subcontractor submits their shop drawings, you cross-reference those drawings with the UL 752 PDF. Check frame depth, glazing bead type, and backing materials. Many failures occur not from the glass, but from the frame—a detail clearly outlined in the standard. ul 752 standard pdf new
Older versions of standards sometimes focused heavily on single-shot resistance. Newer interpretations and revisions often emphasize multi-shot capabilities—ensuring that a barrier can withstand multiple impacts in a tight grouping without compromising structural integrity. Your product must be listed and labeled by UL
To understand the PDF, you must first understand the rating levels. The "new" UL 752 standard maintains a hierarchy of 8 primary levels (Level 1 through Level 8), plus specific ratings for shotgun and handgun threats. When a glazing subcontractor submits their shop drawings,
Here is the breakdown of current ratings:
| Level | Threat | Typical Ammunition | Application | | :--- | :--- | :--- | :--- | | Level 1 | Handgun | 9mm FMJ (124 gr) | Retail counters, low-risk convenience stores | | Level 2 | Handgun | .357 Magnum JSP (158 gr) | Banks, credit unions | | Level 3 | Handgun | .44 Magnum (240 gr) | Police substations | | Level 4 | Handgun | .30 Cal Carbine (110 gr) | High-risk commercial | | Level 5 | Rifle | 5.56mm (.223) M193 (55 gr) | School perimeters, data centers | | Level 6 | Rifle | 7.62mm (.308) FMJ (150 gr) | Government buildings | | Level 7 | Rifle | 5.56mm M855 (62 gr) | Military facilities | | Level 8 | Rifle | 7.62mm (.308) AP (Armor Piercing) | Embassies, high-threat intelligence |
Note on Shotgun: The standard also includes a specific test for 12-gauge rifled slug and 00 buckshot, which often falls between Level 3 and Level 4 in stopping power.