UN R43 Supplement 9 (01 series) · UNECE Regulation No. 43 (ECE R43) — Uniform provisions concerning the approval of safety glazing materials and their installation on vehicles.
UN R43 — Supplement 9 to the 01 series of amendments
Supplement 8 → 9
- What changed
- In the Annex 3 procedure of paragraph 6.4.1.3., the resistance to abrasion of the control piece surface(s) is no longer measured.
- Why
- The test requirements for abrasion and for resistance to simulated weathering have to be clearly separated.
- The abrasion measurement seems to bring no added value for resistance to simulated weathering, and the test result evaluation does not refer to it.
Q1What changed1 change
Procedure of the resistance to simulated weathering test (Annex 3, para. 6.4.1.3.)
Paragraph 6.4.1.3. no longer requires measuring the resistance to abrasion of the control piece surface(s) according to paragraph 4. of this annex. The luminous transmission of the test specimen(s) to be exposed is measured, as before, according to paragraph 9.1. of this annex.
Q2Why it changed
- Proposed by
- Expert from France
- Working party
- GRSG, 116th session (April 2019)
Reasons
The test requirements for abrasion (Annex 3, paragraph 4.) and for resistance to simulated weathering (Annex 3, paragraph 6.) have to be clearly separated. The measurement of abrasion according to the current procedure seems to bring no added value for resistance to simulated weathering. It is not referred to in the test result evaluation (paragraph 6.4.1.4.). The interpretation of the results of weathering tests in Annexes 14–19 includes only light transmittance limits and visual inspection. It does not include light scatter limits, which are measured after the abrasion test.
Sources (4)
“The test requirements for abrasion (Annex 3, para 4.) and for resistance to simulated weathering (Annex 3, para. 6.) have to be clearly separated.”
“The measurement of abrasion according to the current procedure seems to bring no added value for resistance to simulated weathering and is not referred to in the test result evaluation (para. 6.4.1.4.).”
“The interpretation of the results of weathering tests in Annexes 14–19 include only light transmittance limits and visual inspection but not light scatter limits, which are measured after the abrasion test.”
“The expert from France introduced ECE/TRANS/WP.29/GRSG/2019/5 to clarify the test requirements on abrasion and resistance to simulated weathering in Annex 3.”
Document trail
- —ProposalGRSG-115-09Informal document by the expert from France on which ECE/TRANS/WP.29/GRSG/2019/5 is based
- 2019-01ProposalECE/TRANS/WP.29/GRSG/2019/5Proposal by the expert from France to amend the test requirements for resistance to simulated weathering
- —Working party adoptsECE/TRANS/WP.29/GRSG/95Session report, paras 24 and 25: GRSG adopted ECE/TRANS/WP.29/GRSG/2019/5 and asked the secretariat to submit it to WP.29 and AC.1
- 2019-08Sent to WP.29ECE/TRANS/WP.29/2019/95Text that GRSG sent to WP.29 and AC.1
- 2019-11WP.29 adoptsECE/TRANS/WP.29/1149Adopted at the 179th session (session report, para. 116)
- 2020-05-29In forceC.N.235.2020.TREATIES-XI.B.16.43UN depositary notification
Q3Who is affected
Vehicle manufacturer
- No direct action for this role.
Component supplier
- No direct action for this role.
Technical service / Approval authority
- No direct action for this role.
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ⓘ This report gives advice only. It is not legal or type-approval advice.