Approved Laboratory List
Durkee Testing Laboratories, Inc.

Laboratory Listing by Accreditation Body
Laboratory Listing by Country & State
Laboratory Listing by Lab Name
Lab Code: N200178-0
Lab Name: Durkee Testing Laboratories, Inc.
Accrediting Body: NVLAP/NIST
Laboratory Contact:
Mr. John A Durkee
15700 Texaco Street
P.O. Box 1401
Paramount, CA 90723-1401
Phone: 562-531-7111
Fax: 562-531-7137
E-Mail:durkee@IBM.net

Chemical Analysis


Chemical Analysis


Combustion analysis for carbon, sulfur, oxygen, nitrogen, and hydrogen


ASTM E1019 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel and Iron, Nickel and Cobalt Alloys

ASTM E1409 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Method for Determination of Oxygen in Titanium and Titanium Alloys by the Inert Gas Fusion Technique

ASTM E1447 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Test Method for the Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal Conductivity Methods

ASTM E351 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Analysis of Cast Iron - All Types; Section 37, Sulfur by the Combustion-Iodate Titration Method

ASTM E352 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Chemical Analysis of Tool Steels and Other Similar Medium- and High-Grade Alloy Steels; Section 36, Sulfur by the Combustion-Iodate Titration Method

ASTM E353 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys; Section 37, Sulfur by the Combustion-Iodate Titration Method

Energy dispersive X-ray analysis


ASTM E1508 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Guide for Quantitative Analysis by Energy-Dispersive Spectroscopy

Optical emission spectrochemical analysis


ASTM E1086 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Method for Optical Emission Vacuum Spectrometric Analysis of Stainless Steel by the Point-to-Plane Excitation Technique

ASTM E327 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/25/1997 Exp. Date: 03/31/1998
Method for Optical Emission Spectrometric Analysis of Stainless Type 18-8 Steels by the Point-to-Plane Technique

ASTM E415 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Method for Optical Emission Vacuum Spectrometric Analysis of Carbon and Low-Alloy Steel

ASTM E607 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique, Nitrogen Atmosphere

Spot test analysis


ASTM STP550 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Special Technical Publication 550, Nondestructive Rapid Identification of Metals and Alloys by Spot Test

Mechanical and Physical Testing and Inspection


Adhesion


Adhesion of metallic coatings on fasteners


ASTM B571 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Adhesion of Metallic Coatings

Aerospace Nut Test


Push out test of floating plate nuts, gang channel nuts, and anchor nuts


MIL-N-25027 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

MIL-N-25027 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

Torque-out test


MIL-N-25027 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

MIL-N-25027 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Nut, Self-Locking, 250 °F, 450 °F, 800 °F

MIL-N-45913 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Nuts, Self-locking, Hexagon, Prevailing Torque

Bend


Bend test of full size eyebolts


ASTM A370 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods and Definitions for Mechanical Testing of Steel Products Section 14. Bend

Coating


Measurement of fastener coating thickness - dimensional change method


MIL-STD-1312-12 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 12, Thickness of Metallic Coatings

Measurement of fastener coating thickness - magnetic methods


MIL-STD-1312-12 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 12, Thickness of Metallic Coatings

Measurement of fastener coating thickness - microscopial method


MIL-STD-1312-12 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 12, Thickness of Metallic Coatings

Measurement of fastener coating thickness - weight of coating


MIL-STD-1312-12 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 12, Thickness of Metallic Coatings

Corrosion


CASS test (copper accelerated acetic acid-salt spray test)


ASTM B368 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Method for Copper-Accelerated Acetic Acid-Salt Spray (Fog) Testing (CASS Test)

Copper sulfate test - test for free iron on the surface of fasteners


ASTM A380 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems

Humidity testing of fasteners


MIL-STD-1312-3 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 3, Humidity

Nitric acid test for susceptibility to intergranular attack in austenitic stainless steels


ASTM A262 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels, Sections 15 to 21, Practice C - Nitric Acid Test for Detecting Susceptibility to intergranular Attack in Austenitic Stainless Steels

ASTM G28 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods of Detecting Susceptibility to Intergranular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing Alloys

Oxalic acid etch test for classification of etch structures of austenitic stainless steel


ASTM A262 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels, Sections 3 to 7, Practice A - Oxalic Acid Etch Test for Classification of Etch Structures of Austenitic Stainless Steel

Salt spray testing of fasteners


ASTM B117 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Method of Salt Spray (Fog) Testing

MIL-STD-1312-1 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 1, Salt Spray

Stress corrosion of fasteners


MIL-STD-1312-9 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 9, Stress Corrosion

Water immersion method - test for anodic surface contamination on corrosion resistant fasteners


ASTM A262 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Practices for Detecting Susceptibility to Interangular Attack in Austenic Stainless Steel

ASTM G31 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Practice for Laboratory Immersion Corrosion Testing of Metals

Elevated temperature testing


Elevated temperature testing capability


MIL-STD-1312-18 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 18, Elevated Temperature Tensile Strength

Embrittlement


Hydrogen embrittlement (stress durability) of externally threaded fasteners


MIL-STD-1312-5 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 5, Stress Durability

Hydrogen embrittlement (stress durability) of internally threaded fasteners (nuts)


MIL-STD-1312-14 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 14, Stress Durability - Internally Threaded Fasteners

Test for embrittlement of metallic coated externally threaded fasteners


ASTM F519 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Method for Mechanical Hydrogen Embrittlement Testing of Plating Processes and Aircraft Maintenance Chemicals

Fatigue


Fatigue of full-size threaded fasteners


MIL-STD-1312-11 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods. Method 11, Tension Fatigue

Hardness


Brinell hardness of fasteners


ASTM E10 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Method for Brinell Hardness of Metallic Materials

Microhardness of fasteners


MIL-STD-1312-6 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 6, Hardness

Rockwell hardness of fasteners


MIL-STD-1312-6 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 6, Hardness

Rockwell superficial hardness of fasteners


MIL-STD-1312-6 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 6, Hardness

Vickers hardness - test forces from 9.807 to 1176 N (1 to 120 kgf)


ASTM E384 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Method for Microhardness of Materials

Impact


Charpy impact (u-notch) testing


ASTM E23 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Notched Bar Testing of Metallic Materials

Charpy impact (v-notch) testing


ASTM A370 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Method and Definitions for Mechanical Testing of Steel Products Sections 19 to 28 Charpy Impact Testing

ASTM E23 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Notched Bar Impact Testing of Metallic Materials

Proof


Proof load of full-size externally threaded fasteners


ASTM F606 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets. Sections 3.2.1 through 3.2.3: Proof Load (Length Measurement)

Proof load of full-size eyebolts


ASTM F541 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Specification for Alloy Steel Eyebolts

Proof load of internally threaded fasteners (nuts)


ASTM F606 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets. Section 4.2: Proof Load Test

Screw Tests


Torsional strength test of thread rolling and self-drilling tapping screws


SAE J78 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/25/1997 Exp. Date: 03/31/1998
Steel Self-Drilling Tapping Screws

Shear


Double shear of externally threaded fasteners


MIL-STD-1312-13 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 13, Double Shear Test

Single shear of externally threaded fasteners


MIL-STD-1312-20 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 20, Single Shear

Stress Rupture


Stress rupture of fasteners


MIL-STD-1312-10 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 10, Stress Rupture

Tensile


Axial tensile strength of full-size threaded fasteners


MIL-STD-1312-8 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 8, Tensile Strength

Breaking strength of fullsize eyebolts


MIL-STD-1312-8 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 8, Tensile Strength

Wedge tensile strength of full-size threaded fasteners


ASTM E8 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Tension Testing of Metallic Materials

ASTM F606 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets. Sections 3.5: Wedge Tension Testing of Full Size Bolts

Yield strength of full-size externally threaded fasteners


ASTM E8 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Tension Testing of Metallic Materials

Torque-tension


Locking Torque


MIL-STD-1312-31 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 31, Torque

Recess strength test in both the installation and removal directions


MIL-STD-1312-25 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 25, Driving Recess Torque Quality Conformance Test

Vibration


Vibration of full-size threaded fasteners


MIL-STD-1312-7 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Fastener Test Methods, Method 7, Vibration

Metallography


Metallography


Decarburization and case depth measurement in fasteners


ASTM A574 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Specification for Alloy Steel Socket-Head Cap Screws

ASTM F835 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws

Determination of grain size of fasteners


ASTM E112 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Methods for Determining Average Grain Size

Macroscopic examination of fasteners by etching


ASTM E340 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Test Method for Macroetching Metals and Alloys

Microscopic examination of fasteners by etching


ASTM E407 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Practice for Microetching Metals and Alloys

Surface discontinuities of externally threaded fasteners


ASTM F788 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Specifications for Surface Discontinuities of Bolts, Screws, and Studs, Inch Series

Surface discontinuities of internally threaded fasteners (nuts)


ASTM F812 -
STATUS: Accredited
Start Date: / / Eff. Date: 04/01/1998 Exp. Date: 03/31/1999
Standard Specification for Surface Discontinuities of Nuts, Inch Series