Tileboard

{
  "id": "MLC-T-ENV-028130",
  "term": "Tileboard",
  "field": "Environment",
  "definition": "Hardboard that meets the specifications for Class I given by the standard ANSI A135.4-2012 (incorporated by reference, see § 63.14) as approved by the American National Standards Institute. The standard specifies requirements and test methods for water absorption, thickness swelling, modulus of rupture, tensile strength, surface finish, dimensions, squareness, edge straightness, and moisture content for five classes of hardboard. Tileboard is also known as Class I hardboard or tempered hardboard.",
  "references": [
    "40 CFR 63.4781 (CFR 2019)"
  ],
  "url": "https://mlchart.com/terminology/environment/tileboard/"
}