Cal. Code Regs. tit. 19, § 1238
The flexibility of the treated and untreated fabrics shall be reported. The treated fabric, after accelerated weathering, shall not increase excessively in stiffness.
1. Repealer of Section 1238 and renumbering of Section 1240 to 1238 filed 11-10-60; effective thirtieth day thereafter (Register 60, No. 23).