§ 253.10 - Cleanliness of filling material.

(a) An industry product which contains filling materials which have not been cleaned so as to meet the standard set forth in paragraph (b) of this section should not be offered for sale or sold.

(b) A test such as that reflected in Federal Standard 148a, dated December 10, 1964, entitled “Classification, Identification, and Testing of Feather Filling Material,” should be used to determine whether feathers and down have been properly cleaned. Feather and down material having an oxygen number exceeding 20 grams of oxygen per 100,000 grams of sample should be presumed not to have been properly cleaned. [Guide 10]