Cooling pipe-marker survey

Use it with your own records.

1. Download the workbook and open 16 Pipe markers.
2. Enter your site and room scope and the project or policy reference.
3. Use the blank amber table for actual records. The fictional example below it is a reference.
4. Insert table rows when needed. Keep identifiers as text, including leading zeros.
5. Follow guide 16 to complete the checks and record unresolved items.

Before you start

1. Define the bounded fixed-pipe segment using full site/hall scope and stable start and end landmarks, separating any replaceable hoses from the pipe survey.
2. Collect the approved piping diagram, system or loop schedule, fluid description, and applicable marker specification with their revisions.
3. Identify the facilities reviewer who can resolve system identity, service-role, or direction conflicts.
4. Establish the observation viewpoint and evidence method so every arrow can be described relative to a fixed location or equipment reference.

Complete the register

1. Enter the Segment ID or a clearly temporary survey reference when the permanent identity is not yet established.
2. Record the full Location and bounded landmarks before matching the observed run to a drawing segment.
3. Copy the Loop ID and Fluid description from their approved source and keep them distinct from observed marker wording.
4. Enter Documented role and Documented direction separately, citing the system boundary and fixed destination used by the record.
5. Transcribe the Observed marker literally, including any unreadable portion and the arrow direction expressed through the stated viewpoint.
6. Write the Finding as a specific field conflict or missing-information condition, assign the owner, and retain proposed and accepted text separately.
7. Link the accepted decision and final marker evidence after the authorized correction, preserving the original observation for comparison.

Walk through the example

For PIPE-G16-301 in DC01 / H1, begin with the segment from column N3 to cooling bay C3 and enter that bounded location before selecting the drawing relationship. Transcribe LOOP-G16-301 RETURN with the arrow toward CDU-G16-301 as the observed marker. In the documented fields, cite MEC-G16-301 revision 3 and enter its supply role and the same directional destination, retaining the approved fluid description separately. The finding is therefore a role mismatch, not an arrow mismatch. Link DEC-G16-301 when facilities confirms the system and accepted marker text. After the approved correction, use EV-G16-303 to compare the final face with each accepted field in the same viewing context. Retain RETURN in the original observation and record the actual verification date. The closure describes the corrected marker identity and does not claim that the worksheet measured actual flow or authorized work on the cooling system.

Handle common exceptions

The visible run cannot be matched to one drawing segment.

Use a temporary survey reference with precise landmarks and keep permanent segment and loop identity unresolved for the facilities owner.

Role wording disagrees while arrow direction matches.

Record the role conflict separately; matching arrows do not establish that supply or return text is correct.

A photograph does not establish arrow orientation.

Retain it as partial text evidence and obtain accepted viewpoint or landmark evidence before closing the direction comparison.

Review and close

1. Verify that the final evidence identifies the same bounded segment reviewed in the finding.
2. Compare loop, fluid wording, role, and direction individually with the owner-accepted schedule and applicable source revision.
3. Check that the observed arrow is interpreted using the recorded viewpoint and fixed landmark.
4. Retain any unresolved identity or direction field with its owner instead of closing it through a partial wording correction.
5. Record the actual review date and included marker population without implying operating-flow measurement or a whole-system assessment.

Fields and filled example

Fictional values only. Scope: DC01 / H1 unless another location is shown. The downloadable register is blank for your actual observations.

Sources and scope

• ASME: A13.1 piping identification ↗

  Public scope overview only; no complete color or placement specification was accessed.

  Read scope and linked guides