Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-901 - Better brakes
Section 173-901-080 - How to test brake friction materials and report results
Current through Register Vol. 24-06, March 15, 2024
(1) The manufacturer of brake friction material offered for sale in Washington state must ensure that its brake friction materials sold or offered for sale in Washington state are tested:
(2) Manufacturers of brake friction material must ensure that brake friction material is tested for each of the following:
(3) Who is responsible for the accuracy of laboratory testing results? The manufacturer of brake friction material is responsible for the accuracy of the laboratory testing results reported to the department.
(4) How many times does each friction material need to be tested? As SAE J2975:2011 recommends, all testing for the regulated constituents, copper, nickel, zinc, and antimony must be done at least in triplicate.
(5) How must laboratory testing results be reported to the department?
(6) What happens if laboratory error occurs? If laboratory error is suspected, the laboratory may, at its discretion and in accordance with its standard operating procedures, choose to retest the brake friction material. The results from the testing in which the error occurred do not need to be included in the testing results transmitted to the industry-sponsored registrar or in the testing reported to the department.
(7) How long must a manufacturer of brake friction material retain copies of laboratory testing results used for certification? A manufacturer of brake friction materials must maintain copies of laboratory testing results for a period of ten years after the date of certification and must provide copies of these documents to the department upon its request.
(8) May a manufacturer of brake friction material certify compliance using testing results derived using a method or protocol other than SAE J2975:2011? A manufacturer of brake friction material may use alternative testing and sampling preparation methods if the alternative is approved by the department in advance of using these testing methods or protocols for certification. The brake friction material manufacturer proposing the alternative shall be responsible for generating data sufficient to demonstrate to the department that the alternative is at least as effective as SAE J2975:2011. Once an alternative testing method or protocol has been approved by the department, any manufacturer of brake friction material may use the approved, alternative method for certification. The department may only approve alternative testing procedures:
Statutory Authority: Chapter 70.285 RCW. 12-21-082 (Order 10-17), § 173-901-080, filed 10/19/12, effective 11/19/12.