Standard · Surface preparation and conditions
SSPC-PA 17
Where and how often to measure the surface profile, and how to judge it.
SSPC-PA 17 is to surface profile what SSPC-PA 2 is to film thickness. The test method, ASTM D4417, says how to take a reading with a comparator (Method A), a depth micrometer (B), replica tape (C) or a portable stylus (D, which replaced ASTM D7127 when ASTM withdrew it in 2021). PA 17 says where to take the readings, how often, and when the surface conforms.
What it sets
- A number of measurement locations for each work shift or period of blasting, and for each blast unit.
- How to combine the readings at a location into a result.
- How to find the extent of an area that does not conform.
- Peak count requirements, measured with a stylus instrument (ASTM D4417 Method D).
The current edition is 2020; older specifications cite the 2012 text.
1 practice item in the members area mentions SSPC-PA 17 (CIP 1: 1).
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This page describes the subject of SSPC-PA 17 in our own words; it does not reproduce the standard. For the full text, buy the current edition from AMPP. Checked on 2026-10-14; errors go in the corrections log. CoatMentor is an independent study aid. It is not affiliated with ISO, AMPP, SSPC, NACE International, ASTM or FROSIO.