Northtown's Non-Detectable Underground Warning Tape consists of a 4mil overall thickness of polyethylene film formulated to resist degradation due to acid and alkaline soils. The lettering on all non-detectable indicator tape is a minimum of 1" unless otherwise specified. All non-detectable warning tape is APWA color coded and permanently printed. Non-Detectable tape is used for accurately locating and preventing damage to valuable underground utility installations. Properly installed, this tape helps avoid catastrophically inaccurate digging when locating utilities such as electrical lines, gas pipes and communication cables.
Non-Detectable Tape conforms to the following specifications:
- NTSB-PSS-73-1
- GSA Public Buildings Service Guide
- American Gas Association 72-D-56
- API RP 1109
- OSHA 1926.956 (c) (1)
- APWA Uniform Color Code
- DOT Office of Pipeline Safety USAS B31.8
- Federal Gas Safety Regulations S 192-321 (e)
APWA Uniform Color Codes for
Non-Detectable Tape:
COLOR |
USE |
RED |
Electric, Fire, Cathodic Protection |
YELLOW |
Gas, Oil, Pipeline |
BLUE |
Water, Potable Water |
GREEN |
Sewer, Storm Drain, Force Main |
ORANGE |
Fiber Optic, Telephone |
PURPLE |
Reclaimed Water, Non-Potable |
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