ACR type rigid copper tubing in diameters of 1/8 to 3-1/8 in The copper ACR tube is purged with nitrogen to prevent internal oxidation and comes with plastic caps on the ends to protect the inside ACR tube meet the highest industry standard of maximum acceptable internal residue limit of 0.0035 g/sq-ft CLI's cleaning process yields tubing that averages 0.0006 g/sq-ft Hard drawn (H58) temper Product are typically furnished in 10 and 20 ft straight lengths Nitrogen charged and sealed 6.10 m segment

ASTM B-280 C12200