Session 81 | Geneva | 1-5 Feb 2016
6. Regulation No. 90 (Replacement brake linings)
GRRF/2016/18 | Proposal for a Supplement to the 02 series of amendments to Regulation No. 90 Proposal to introduce requirements for the approval of replacement brake lining assemblies for L-category vehicles.
GRRF/2016/22 | Proposal for an amendment to Regulation No. 90 Proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification).
GRRF-81-04 | Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22 Updated version of the proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification). This revised proposal clarifies that the proposal would revise the specifications for vehicles of categories M3, N3, O3 and O4 but retain the maximum permitted specification of 0.030mm for vehicles of categories M2 and N2.
GRRF-81-05/Rev.1 | Presentation on carbon-ceramic brakes Presentation highlighting the growing use of carbon-ceramic (CSiC) brake discs and the need to address these products under UN R90 given that the replacement discs regulation is founded upon conventional cast iron technologies.
GRRF-81-29 | Presentation supporting ECE/TRANS/WP.29/GRRF/2016/18 Presentation explaining the proposal to establish requirements for the approval of replacement brake lining assemblies for L-category vehicles.
GRRF-81-04/Rev.1 | Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22 Revised version of the proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4), taking into account comments received during the February 2016 GRRF session. The tables are considered superfluous since replacement parts identical to the original parts must by definition have values identical to the corresponding original parts. This proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.040 mm (the common OEM specification). This has been changed from the previous proposal of 0.050 mm. This revised proposal clarifies that the proposal would revise the specifications for vehicles of categories M3, N3, O3 and O4 but retain the maximum permitted specification of 0.030mm for vehicles of categories M2 and N2.
GRRF-81-33 | Proposed Terms of Reference for a Special Interest Group on UN Regulation No. 90 Technical services have reported difficulties in interpreting the requirements and procedures incorporated in the 02 series of amendments to UN R90. Therefore, this submission proposes a special interest group to consider whether an informal working group may be needed to revised UN 92.02.
GRRF-81-03 | Draft proposal for amendments to Regulation No. 90 Proposal to establish a uniform CoP inspection questionnaire to harmonize conformity of production administrative requirements across Contracting Parties under UN R90. The intent is to increase efficiency and lower costs due to the absence of mutual recognition of CoP certifications among approval authorities.
GRRF-81-27 | Request for clarification of Regulation No. 90 UN R90 specifies one minimum shear strength requirement for brake shoe assemblies and one requirement for brake pad assemblies in Regulation No. 90 via a reference to ISO 6312. However, ISO 6312 specifies test methods for hot and cold shear tests. Therefore, GRRF is requested to clarify whether the strength requirements are for both hot and cold shear.
13. (b) Any other business
GRRF-81-27 | Request for clarification of Regulation No. 90 UN R90 specifies one minimum shear strength requirement for brake shoe assemblies and one requirement for brake pad assemblies in Regulation No. 90 via a reference to ISO 6312. However, ISO 6312 specifies test methods for hot and cold shear tests. Therefore, GRRF is requested to clarify whether the strength requirements are for both hot and cold shear.
GRRF-81-03
Draft proposal for amendments to Regulation No. 90 (FEMFM)
12 Jan 2016 Working Party Informal Documents Replacement Brake Linings, Discs, and Drums Replacement Brake Components Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers Proposal to establish a uniform CoP inspection questionnaire to harmonize conformity of production administrative requirements across Contracting Parties under UN R90. The intent is to increase efficiency and lower costs due to the absence of mutual recognition of CoP certifications among approval authorities. GRRF-81-0003
GRRF-81-04
Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22 (CLEPA)
19 Jan 2016 Working Party Informal Documents Replacement Brake Linings, Discs, and Drums Replacement Brake Components Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers Updated version of the proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification). This revised proposal clarifies that the proposal would revise the specifications for vehicles of categories M3, N3, O3 and O4 but retain the maximum permitted specification of 0.030mm for vehicles of categories M2 and N2. GRRF-81-0004
GRRF-81-04/Rev.1
Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22 (CLEPA)
05 Feb 2016 Working Party Informal Documents Replacement Brake Linings, Discs, and Drums Replacement Brake Components Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers Revised version of the proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4), taking into account comments received during the February 2016 GRRF session. The tables are considered superfluous since replacement parts identical to the original parts must by definition have values identical to the corresponding original parts. This proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.040 mm (the common OEM specification). This has been changed from the previous proposal of 0.050 mm. This revised proposal clarifies that the proposal would revise the specifications for vehicles of categories M3, N3, O3 and O4 but retain the maximum permitted specification of 0.030mm for vehicles of categories M2 and N2. GRRF-81-0004/Rev.1
GRRF-81-05/Rev.1
Presentation on carbon-ceramic brakes (CLEPA)
19 Jan 2016 Working Party Informal Documents Replacement Brake Linings, Discs, and Drums Replacement Brake Components Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers Presentation highlighting the growing use of carbon-ceramic (CSiC) brake discs and the need to address these products under UN R90 given that the replacement discs regulation is founded upon conventional cast iron technologies. GRRF-81-0005/Rev.1
GRRF-81-27
Request for clarification of Regulation No. 90
03 Feb 2016 Working Party Informal Documents Replacement Brake Linings, Discs, and Drums Replacement Brake Components Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers UN R90 specifies one minimum shear strength requirement for brake shoe assemblies and one requirement for brake pad assemblies in Regulation No. 90 via a reference to ISO 6312. However, ISO 6312 specifies test methods for hot and cold shear tests. Therefore, GRRF is requested to clarify whether the strength requirements are for both hot and cold shear. GRRF-81-0027
GRRF-81-29
Presentation supporting ECE/TRANS/WP.29/GRRF/2016/18 (Italy)
04 Feb 2016 Working Party Informal Documents Replacement Brake Linings, Discs, and Drums Replacement Brake Components Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers Presentation explaining the proposal to establish requirements for the approval of replacement brake lining assemblies for L-category vehicles. GRRF-81-0029
GRRF-81-33
Proposed Terms of Reference for a Special Interest Group on UN Regulation No. 90 (Spain and IDIADA)
05 Feb 2016 Working Party Informal Documents Replacement Brake Linings, Discs, and Drums Replacement Brake Components Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers Technical services have reported difficulties in interpreting the requirements and procedures incorporated in the 02 series of amendments to UN R90. Therefore, this submission proposes a special interest group to consider whether an informal working group may be needed to revised UN 92.02. GRRF-81-0033
GRRF/2016/18
Proposal for a Supplement to the 02 series of amendments to Regulation No. 90 (Italy)
25 Nov 2015 Working Party Formal Documents Replacement Brake Linings, Discs, and Drums Replacement Brake Components Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers Proposal to introduce requirements for the approval of replacement brake lining assemblies for L-category vehicles. GRRF/2016/0018
GRRF/2016/22
Proposal for an amendment to Regulation No. 90 (CLEPA)
25 Nov 2015 Working Party Formal Documents Replacement Brake Linings, Discs, and Drums Replacement Brake Components Uniform provisions concerning the approval of replacement brake lining assemblies, drum brake linings and discs and drums for power-driven vehicles and their trailers Proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification). GRRF/2016/0022