This appraisal applies to a range of detectable and non-detectable underground marking tapes. This Issue 5 is a replacement for the previous version of the appraisal which had reached its 5-year expiry date.
The marking tapes are manufactured from polyethylene. The detectable tape has an embedded grade 316 stainless steel wire. The tapes are 100mm wide and are available in rolls of 250m length. The height of the letters is 50mm.
The following warnings are available on both detectable and non-detectable tape
- Blue background: CAUTION: DRINKING WATER MAIN BURIED BELOW
- Purple background: CAUTION: RECYCLED WATER MAIN BURIED BELOW
- Green background: CAUTION: POTABLE WATER MAIN BURIED BELOW
- Cream background: CAUTION: SEWER MAIN BURIED BELOW The text is repeated at 800 mm intervals.
The text is repeated at 800 mm intervals.