When any filling material contains more than 0.3 milliliters of sludge the material is not permissible for sale in California. Sludge shall mean any material from a 20 gram sample of filling material which will settle out of a solution which has passed through a 40 mesh sieve.
Cal. Code Regs. Tit. 4, § 1133
Note: Authority cited: Sections 19034, Business and Professions Code. Reference: Section 19089, 19121, 19160 and 19202, Business and Professions Code.