Noryl Specifications — Sizes, Tolerances, UL 94 & Standards

Noryl (modified PPO+PS) stock shapes are governed by SABIC material specifications, UL 94 flame certifications, and, for water-contact grades, NSF/ANSI 61. This page summarizes the applicable standards, minimum property requirements, stock size ranges, and dimensional tolerances for Noryl EN265, GFN3, and 731 in rod, sheet, and tube form.

At a glance:

  • Primary standard: SABIC Noryl material data sheet; ASTM D6869 covers modified PPO shapes
  • UL 94 V-0: EN265 and GFN3 at ≥0.030" (0.75mm) wall/thickness
  • Rod: 0.500" – 6.0" diameter in 4-ft lengths
  • Sheet: 0.125" – 4.0" thick; standard 24" × 48" sheets
  • Tube: OD/ID combinations to order
  • NSF-61 potable water: available on select grades — confirm lot documentation

Applicable Standards

StandardScope
ASTM D6869Standard specification for extruded PPO (polyphenylene oxide) shapes
UL 94Flammability testing; EN265 and GFN3 rated V-0 at ≥0.030"
UL 746BPolymeric materials — long-term property testing
NSF/ANSI 61Potable water contact — available on specific Noryl grades
IEC 60112Tracking resistance (CTI — comparative tracking index)
ASTM D638Tensile strength and modulus
ASTM D790Flexural strength and modulus
ASTM D256Izod impact
ASTM D648Heat deflection temperature
ASTM D150Dielectric constant and dissipation factor
ASTM D149Dielectric strength

ASTM D6869 Minimum Property Requirements

For modified PPO extruded shapes:

Noryl EN265 exceeds all minimums: tensile 8,700 psi, HDT 215°F, impact 5.0 ft·lb/in, water absorption 0.07%.


Stock Shape Sizes and Tolerances

Noryl Rod

Nominal DiameterOD ToleranceStandard Length
0.500" – 0.750"±0.010"4 ft
0.750" – 1.5"±0.015"4 ft
1.5" – 3.0"±0.020"4 ft
3.0" – 5.0"±0.030"4 ft
5.0" – 6.0"±0.040"4 ft

Noryl rod is primarily stocked in EN265. GFN3 rod is available but less commonly stocked — confirm availability.

Noryl Sheet / Plate

ThicknessThickness ToleranceStandard Sheet Size
0.125" – 0.250"±0.010"24" × 48"
0.250" – 0.500"±0.015"24" × 48"
0.500" – 1.0"±0.020"24" × 48"
1.0" – 2.0"±0.030"24" × 48"
2.0" – 4.0"±0.040"24" × 48"

Noryl Tube

Tube is available in standard OD/ID combinations to order. OD tolerance: ±0.015" to ±0.030" depending on size.


UL 94 Flame Certification

UL 94 is the critical certification for Noryl electrical applications.

GradeUL 94 RatingMinimum Thickness
EN265V-00.030" (0.75mm)
GFN3V-00.030" (0.75mm)
731V-1 or HBVaries

V-0 definition: Material self-extinguishes within 10 seconds after removal of the ignition source; no flaming drips.

UL Yellow Card documentation is available for Noryl EN265 and GFN3 — request the Yellow Card from SABIC or your distributor when UL documentation is required for equipment certification filings.


Electrical Specification Summary


Engineering Drawing Notation

For Noryl parts on engineering drawings:

  • Material callout: "Noryl EN265, SABIC or approved equivalent, per ASTM D6869"
  • Flame requirement: "UL 94 V-0 at minimum 0.030" wall; Yellow Card documentation required"
  • Potable water: "NSF/ANSI 61 compliance required; COC required per lot"
  • Tolerances: Machined Noryl holds ±0.001" on turned diameters; ±0.002" on milled features without difficulty

Environmental and Regulatory


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