{"id":693978,"date":"2024-11-06T05:34:56","date_gmt":"2024-11-06T05:34:56","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ul-3312020\/"},"modified":"2024-11-06T05:34:56","modified_gmt":"2024-11-06T05:34:56","slug":"ul-3312020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ul\/ul-3312020\/","title":{"rendered":"UL 331:2020"},"content":{"rendered":"

1 Scope<\/b><\/p>\n

1.1 These requirements cover complete, self-contained strainer or filter assemblies intended for use with designated flammable fluids and anhydrous ammonia (fertilizer grade) in residential and commercial fuel-burning, dispensing, and handling facilities. Although these devices are designated strainers, they may be either strainers or filters according to the common terminology of the industry.<\/p>\n

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1.2 The term flammable fluids as used in this standard means fuel oil, gasoline, kerosene, and similar petroleum products, liquefied petroleum gas (LP-Gas), and manufactured and natural fuel gas.<\/p>\n<\/p>\n

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1.3 These requirements do not cover the following:<\/p>\n

    \n
  1. \n

    a)\u00a0Strainers for handling liquids under cryogenic conditions;<\/p>\n<\/li>\n

  2. \n

    b)\u00a0Strainers for marine use;<\/p>\n<\/li>\n

  3. \n

    c)\u00a0Strainers for automotive fuel lines;<\/p>\n<\/li>\n

  4. \n

    d)\u00a0Strainers for handling refrigerants;<\/p>\n<\/li>\n

  5. \n

    e)\u00a0Strainers for use in such facilities as chemical, petrochemical, petroleum, and utility power plants; and<\/p>\n<\/li>\n

  6. \n

    f)\u00a0Strainers for use in fluid-power (hydraulic and pneumatic) applications.<\/p>\n<\/li>\n<\/ol>\n

    \n

    1.4 Requirements for non-potable water strainers are covered in Supplement SA.<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

    Standard for Strainers for Flammable Fluids and Anhydrous Ammonia<\/b><\/p>\n\n\n\n\n
    Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
    UL<\/b><\/a><\/td>\n2020-10-01<\/td>\n27<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":693988,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2680],"product_tag":[],"class_list":{"0":"post-693978","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ul","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/693978","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/693988"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=693978"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=693978"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=693978"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}