[Code of Federal Regulations]
[Title 9, Volume 1]
[Revised as of January 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 9CFR71.11]

[Page 193-194]
 
                  TITLE 9--ANIMALS AND ANIMAL PRODUCTS
 
  CHAPTER I--ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF 
                               AGRICULTURE
 
PART 71--GENERAL PROVISIONS--Table of Contents
 
Sec. 71.11  Cresylic disinfectant as permitted disinfectant; specifications.

    The following specifications will be employed for determining the 
suitability of cresylic disinfectant for use under the provisions of 
Sec. 71.10(b)(3):
    (a) The product shall remain a uniform liquid when held at 0 [deg]C. 
(32 [deg]F.) for 3 hours (chill test).

[[Page 194]]

    (b) The product shall dissolve completely in 30 parts of distilled 
water at 25 [deg]C. (77 [deg]F.) within 2 minutes (solution-rate test), 
producing a solution entirely free from globules and not more than 
faintly opalescent (solubility-degree test).
    (c) The product shall contain not more than 25 percent of inert 
ingredients (water and glycerin), not more excess alkali than the 
equivalent of 0.5 percent of sodium hydroxide, and not less than 21 
percent of soap exclusive of water, glycerin, and excess alkali.
    (d) The product shall contain not less than 50 percent and not more 
than 53 percent of total phenols. It shall contain less than 5 percent 
of benzophenol (C\6\H\5\OH).
    (e) The methods of determining compliance with the specifications in 
paragraphs (a) to (d) of this section will be those described in United 
States Department of Agriculture Bulletin 1308, Chemical and Physical 
Methods for the Control of Saponified Cresol Solutions, so far as they 
are applicable.
    (f) Any suitable glyceride, fat acid, or resin acid may be used in 
preparing the soap, but not all are suitable nor are all grades of a 
single product equally suitable, Also various grades of commercial 
cresylic acid differ in suitability. Therefore, manufacturers are 
cautioned to prepare a trial laboratory batch from every set of 
ingredients and to prove its conformity with paragraphs (a) and (b) of 
this section, before proceeding with manufacture on a factory scale.