Plywood QC Inspection Checklist : Part 38 Thickness Tolerance
ALmost all the buyers or sellers have their own thickness tolerance checklist and rules , thickness variance allowed in HPVA panels (Hardwood Plywood & Veneer Association), IHPA plywood (International Hardwood Plywood Association) and Mills’s spec (Factory own tighter specification).
It is easy to see that HPVA standards allow the largest variance in thickness of all the standards! However, the IHPA standard allows thinner panels than HPVA. More and more buyers buying from suppliers that can hold tighter thickness tolerances and are allowing less overall thickness variance. In addition, while their plywood are produced as 18mm, the thickness range is within the range allowed in 18mm plywood per HPVA. Thus (technically speaking) 18mm can be called ¾” (you may notice that your plywood is marked as ¾”, ½” etc.).
EU also have their Thickness inspection rules ,the thickness tolerance are various ,also the middle east ,africa ,asia ,latin america ,mexico ,north america如无特殊说明，文章均为本站原创，转载请注明出处。If there are no special instructions, the articles are original, if you want to use or reproduce, please indicate the original source www.plywoodinspection.com,If you find that our article infringes on your rights and interests, please email us in time and we will delete it at the first time.