It is also accepted by USDA, NSF and Canadian Department of Agriculture. lored HDPE sheets have Matte textured surfaces on both sides. .015" to .055" have soft matte textures. .075" - .090" have heavy Matte Textures. FDA 21CFR177.1520 Sec. 2.1, ASTM D4976, PE244, ASTMD1248 Type IV, Class A, Fed Spec LP512, Type 1, Class H, Grade 5.