STANDARDS AND QUALITY CONTROL DRILL
PACK ANSWER SHEET
◉ SSPC-SP 10/NACE 2.
Answer: Near white Metal Blast -Must remove: ALL visible
contaminants, no rust, mil scale or paint ---What can remain: Stains
up to 5% of unit area (3"x3")
◉ SSPC-SP 6/NACE 3.
Answer: Commercial blast cleaning -Must remove: ALL visible
contaminants, no rust, mil scale or paint ---What can remain: Stains
up to 33% of unit area.
◉ SSPC-SP 14/NACE 8.
Answer: Industrial blast cleaning, -Must remove: MOST mil scale,
rust ---What can remain: UP TO 10% intact, tightly adherent mtl. mil
scale, rust, thin coating in unit area staining IS allowed.
◉ SSPC-SP7/ NACE 4.
Answer: BRUSH-OFF BLAST , -Must remove: ALL loosely adherent
material ---What can remain: tightly adherent material & stains
, ◉ NACE #1/SSPC-SP5 is similar to ISO-?.
Answer: Sa3 - Blast cleaning- Visually Clean Steel
◉ NACE #2/SSPC-SP 10 is similar to ISO Sa 2 1/2.
Answer: Sa2 1/2 - Very thorough blast cleaning
◉ NACE #3/SSPC-SP-6 /ISO Sa 2.
Answer: Thorough blast cleaning
◉ NACE #1/SSPC-SP5 is similar to which ISO ?.
Answer: Sa 3-Blast cleaning-visually clean steel
◉ NACE #3/SSPC-SP-6 is similar to ISO -?.
Answer: None- N/A - Commercial blasting is not similar to any ISO
◉ NACE #4/SSPC-SP-7 is similar to ISO?.
Answer: Sa 1 Light Blast Cleaning
◉ SSPC - SP1.
Answer: Solvent Cleaning -- Must remove: All visible oil, grease, dirt
and dust