A project needs a specification set that is sufficient for obtaining and comparing a supplier quote—not every characteristic that could be measured. The American Society for Quality (ASQ) says a quote should be requested against stated specifications and testing requirements, while the National Institute of Standards and Technology (NIST) includes material specifications, finish requirements, surface texture specifications, and process notes within manufacturing product information.
What should be defined before requesting a quote?
The specification should describe what the project requires clearly enough to establish a common basis for the quote.
| Requirement area | What the project should establish |
|---|---|
| Material | The applicable material specifications |
| Surface and finish | The required finish and any relevant surface texture specifications |
| Manufacturing context | Process notes that affect or clarify production requirements |
| Testing | Any testing requirements that the supplier must address in the quote |
Optional preferences should not be presented as mandatory requirements. Otherwise, it becomes unclear whether a quoted option conforms to the project or merely reflects one possible interpretation.
How should the quote be checked?
ASQ states that material suppliers should conform to pre-established requirements. That makes the sequence important:
- Establish the applicable requirements before requesting pricing.
- Distinguish mandatory project requirements from optional preferences.
- Include relevant material, finish, surface texture, and process information.
- State the applicable testing requirements rather than referring to testing in general terms.
- Request the quote against that same established specification set.
- Check whether the response conforms to the stated requirements.
A shared specification set gives the project and supplier a clearer basis for comparison. It does not replace project-specific technical review or establish requirements that have not yet been defined.
What must the project still confirm?
The cited statements do not provide a universal material, finish, surface texture, process, or testing specification for every project. They also do not establish exact test methods or acceptance conditions.
Before treating a specification as final, the project team must still confirm:
- Which material and finish requirements apply.
- Whether surface texture and process notes are necessary.
- Whether testing is required and how it should be stated.
- Which project documents or technical decisions control the final requirements.
- Whether the wording is precise enough for the quote and subsequent comparison.
The safest approach is therefore to request a quote only after the necessary requirements have been established—and to leave unspecified items open until the project can verify them.