This standard describes the deterioration test method for automobile drum brake linings and disc brake pads (hereinafter referred to as brake linings and pads, respectively) containing organic substances when exposed to water, saline, oil, and brake fluid. stipulate.
JIS D 4420:1986 history
1986JIS D 4420:1986 Test procedure of deterioration by water , salt water, oil and brake fluid for brake linings and pads of automobiles