JT/T 495-2014
Sampling methods for highway safety facilities quality inspection (English Version)

Standard No.

JT/T 495-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

Professional Standard - Traffic

Latest

JT/T 495-2014

Replace

JT/T 495-2004

Scope

This standard specifies common terminology, sampling principles, inspection classifications, sampling inspection procedures, batch quality determination, and disposal of unqualified batches in quality inspection of highway traffic safety facilities. This standard applies to highway corrugated beam steel guardrails, traffic sign boards, reflective films, road marking paint, glass beads for road markings, preformed marking tapes, raised road signs, isolation fences, anti-glare boards, outline markings and other safety facilities The acceptance inspection and supervisory spot inspection of products and components can be used as a reference for other highway traffic safety facilities and mechanical and electrical products.

JT/T 495-2014 Referenced Document

• GB 5768.2 Road traffic signs and markings—Part 2: Road traffic signs*， 2022-03-15 Update
• GB/T 10111 Generation of random numbers and procedures applied to sampling inspection for product quality
• GB/T 18226 Specification for steel component anticorrosion of highway engineering*， 2015-05-15 Update
• GB/T 18833 Retroreflective sheeting for traffic control
• GB/T 23827 Road traffic sign plate and support*， 2021-10-11 Update
• GB/T 24717 Preformed pavement marking tape
• GB/T 24718 Anti-glare board*， 2023-03-17 Update
• GB/T 24722 Glass beads for road markings*， 2020-12-14 Update
• GB/T 24725 Raised pavement markers
• GB/T 24970 Delineator*， 2020-03-06 Update
• GB/T 26941.1 Fences.Part 1: General rules
• GB/T 26941.2 Fences.Part 2:Posts, brace posts and gates
• GB/T 26941.3 Fence.Part 3: Welded steel wire fences
• GB/T 2828.1-2012 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)
• GB/T 2828.11-2008 Inspection procedures for count sampling - Part 11: Procedures for assessing the level of claimed quality in small populations
• GB/T 2828.2-2008 Inspection procedures by count sampling - part 2 : sampling plans for isolated lot inspection retrieved by limit quality LQ
• GB/T 2828.4-2008 Sampling procedures for inspection by attributes.Part 4:Procedures for assessment of declared quality levels
• GB/T 3186 Paints, varnishes and raw materials for paints and varnishes. Sampling
• JT/T 280 Pavement marking paint*， 2022-06-09 Update
• JT/T 281 Corrugated sheet steel beams for guardrail
• JT/T 457 Thrie-beam guardrail for highway

JT/T 495-2014 history

• 2014 JT/T 495-2014 Sampling methods for highway safety facilities quality inspection
• 2004 JT/T 495-2004 Sampling method and Judgement for highway safety appurtenances quality audit