AASHTO T 257 : 1996(R2013)
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
METHOD OF TEST FOR INSTRUMENTAL PHOTOMETRIC MEASUREMENTS OF RETROREFLECTIVE MATERIALS AND RETROREFLECTIVE DEVICES
Hardcopy , PDF
28-12-2022
English
01-01-2013
Important note : Users cannot be edited or removed once added to your Multi user PDF.
1. SCOPE
2. REFERENCED DOCUMENTS
3. SIGNIFICANCE AND USE
4. TERMINOLOGY
5. QUANTITIES AND UNITS FOR RETROREFLECTIVE PHOTOMETRIC
MEASUREMENTS
6. REQUIREMENTS TO BE STATED IN SPECIFICATIONS
7. APPARATUS
8. TEST SPECIMENS
9. CALIBRATION
10. TEST PROCEDURES
11. REPORT
12. PRECISION AND ACCURACY
13. REFERENCES
APPENDIX (Nonmandatory Information)
X1 - DETERMINING CORRELATED COLOR TEMPERATURE
X2 - DETERMINING PHOTORECEPTOR LINEARITY
X3 - VERIFYING PHOTOPIC RESPONSIVITY
Includes procedures for instrumental determinations of photometric characteristics of retroreflective materials and retroreflective devices.
| DevelopmentNote |
Included in AASHTO HM. (10/2013)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
American Association of State Highway and Transportation Officials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| AASHTO M 290 : 1996 | SPECIFICATION FOR ACRYLIC PRISMATIC REFLECTORS AND EMBOSSED ALUMINUM FRAMES FOR SIGNS |
| ASTM E 184 : 1979 : R1994 | Standard Practice for Effects of High-Energy Neutron Radiation on the Mechanical Properties of Metallic Materials, E706 (IB) (Withdrawn 2002) |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.