Technician Information for David Bristow

First NameDavid
Last NameBristow
Technician ID05097

Associated Labs

Total 2 items.
Lab NameManager NameFull AddressDistrictPage Alias
Blackburn ConsultingBenjamin Lokteff2491 Boatman Avenue, West Sacramento, CA 956913Lab 1
Pavement Engineering, IncorporatedJonathan Edholm3680 Industrial Boulevard, Suite 400, West Sacramento, CA 956903Lab 2

Test Methods

California Test (CT) Certifications

Total 17 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
CT 105 Calculations - Gradings (JTCP - HMA I / S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 125 AGG Sampling - AGGREGATES 2021-05-182022-05-18ExpiredJackie Treat(No lab)(No comments)
CT 125 AGG Sampling - AGGREGATES (JTCP - HMA I / S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 125 GEN Sampling - GENERAL 2021-05-182022-05-18ExpiredJackie TreatLab 1, Lab 2(No comments)
CT 125 HMA Sampling - HMA 2021-05-182022-05-18ExpiredJackie Treat(No lab)(No comments)
CT 201 Sample Preparation - Soil and Aggregates (JTCP - S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 202 Sieve analysis - Fine and Coarse Aggregates (JTCP - S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 205 Percent Crushed Particles (JTCP - S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 216 Relative Compaction - Soils and Aggregates (JTCP - S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 217 Sand Equivalent (JTCP - S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 226 Moisture Content - Soils and Aggregates (JTCP - S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 227 Cleanness Value (JTCP - S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 229 Durability (JTCP - S&A)2024-02-092027-02-09ActiveFirooz Ahmad HosainyLab 1, Lab 2(No comments)
CT 231 Relative Compaction - Nuclear Gage 2021-05-182022-05-18ExpiredJackie TreatLab 1, Lab 2(No comments)
CT 301 "R" Value 2023-07-282025-07-28ActiveIgnocencio HerreraLab 1(No comments)
CT 308 Bulk SpG and Density - HMA 2021-06-222022-06-22ExpiredJackie TreatLab 1, Lab 2(No comments)
CT 309 Max SpG and Density - HMA 2021-06-222022-06-22ExpiredJackie TreatLab 1, Lab 2(No comments)

AASHTO/ASTM Proficiencies

Total 5 items.
Test MethodObtained DateExpiration DateStatusIA ResponsibleWithin Lab(s) ScopeComments
AASHTO T166 Bulk SpG of Compacted HMA - SSD (JTCP - HMA II)2024-02-152027-02-15ActiveGabriela LopezLab 1, Lab 2(No comments)
AASHTO T209 Max SpG and Density - HMA (JTCP - HMA II)2024-02-152027-02-15ActiveGabriela LopezLab 1, Lab 2(No comments)
AASHTO T269 Percent Air Voids - HMA (JTCP - HMA II)2024-02-152027-02-15ActiveGabriela LopezLab 1, Lab 2(No comments)
AASHTO T275 Bulk SpG - HMA (JTCP - HMA II)2024-02-152027-02-15ActiveGabriela LopezLab 1, Lab 2(No comments)
AASHTO T308 AC Content (Ignition Oven) - HMA (JTCP - HMA II)2024-02-152027-02-15ActiveGabriela LopezLab 1(No comments)