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This is to attest thatARAB COMPANY FOR LABORATORIES AND SOILKING FAISAL DISTRICT, IBN TASHEEQ STREET, VILLA NO. 11P.O. BOX 46891, RIYADH 11542KINGDOM OF SAUDI ARABIATesting Laboratory TL-664has met the requirements of AC89, IAS Accreditation Criteria for Testing Laboratories, and has demonstratedcompliance with ISO/IEC Standard 17025:2017, General requirements for the competence of testing and calibrationlaboratories. This organization is accredited to provide the services specified in the scope of accreditation on thefollowing pages.This certificate is valid up to November 1, 2022.This accreditation certificate supersedes any IASaccreditation bearing an earlier effective date. Thecertificate becomes invalid upon suspension,cancellation or revocation of accreditation.See www.iasonline.org for current accreditationinformation, or contact IAS at 562-364-8201.Raj NathanPresident

IAS Accreditation NumberCompany NameAddressTL-664Arab Company for Laboratories and SoilKing Faisal District, IBN Tasheeq Street, Villa No.11P.O. Box 46891Riyadh 11542Kingdom of Saudi ArabiaAbdel Fattah M. Ismael, Branch Manager 966 11 2372222September 5, 2019ISO/IEC 17025:2017Contact NameTelephoneEffective Date of ScopeAccreditation StandardAASHTO M249White and yellow reflective thermoplastic striping Material(solid form)AASHTO T166-2016Standard Method of Test for Bulk Specific Gravity (Gmb)of Compacted Hot Mix Asphalt (HMA) Using SaturatedSurface-Dry SpecimensAASHTO T180 (2015)Standard Test Method for Moisture-Density Relations ofSoils Using a 4.54-kg (10 lb) Rammer and a 457 mm (18in.) DropAASHTO DESIGNATION: T230 68 (1993)Standard method of Test for Determining Degree ofPavement Compaction of Bituminous Aggregate MixturesACI 318MBuilding Code Requirements for Structural Concrete andCommentaryASTM A53/A53MStandard Specification for Pipe, Steel, Black and HotDipped, Zinc-Coated, Welded and SeamlessASTM A90/A90MStandard Test Method for Weight (Mass) of Coating on Ironand Steel Articles with Zinc or Zinc-Alloy coatings.ASTM A370Standard Test Methods and Definitions for MechanicalTesting of Steel Products (Clauses 16-19 & 20-32excluded)ASTM A615/A615MStandard Specification for Deformed and Plain CarbonSteel Bars for Concrete ReinforcementASTM B117Standard PracticeApparatusforOperatingSaltInternational Accreditation Service, Inc.3060 Saturn Street, Suite 100, Brea, California 92821 U.S.A.Telephone 1 562-364-8201 — ge 1 of 8

ASTM C29/C29MStandard Test Method for Bulk Density (“Unit Weight”) andVoids in AggregateASTM C31/C31MStandard Practice for Making and Curing Concrete TestSpecimens in the FieldASTM C39/C39MStandard Test Method for Compressive Strength ofCylindrical Concrete SpecimensASTM C40/C40MStandard Test Method for Organic Impurities in FineAggregates for ConcreteASTM C42/C42MStandard Test Method for Obtaining and Testing DrilledCores and Sawed Beams of ConcreteASTM C87/C87MStandard Test Method for Effect of Organic Impurities inFine Aggregate on Strength of MortarASTM C88Standard Test Method for Soundness of Aggregates by Useof Sodium Sulfate or Magnesium SulfateASTM C109/C109MStandard Test Method for Compressive Strength ofHydraulic Cement Mortars (Using 2-in. or [50-mm] CubeSpecimens)ASTM C117Standard Test Method for Materials Finer than 75-μm (No.200) Sieve in Mineral Aggregates by WashingASTM C123/C123MStandard TestAggregateASTM C127Standard Test Method for Density, Relative Density(Specific Gravity), and Absorption of Coarse AggregateASTM C128Standard Test Method for Density, Relative Density(Specific Gravity), and Absorption of Fine AggregateASTM C131/C131MStandard Test Method for Resistance to Degradation ofSmall-Size Coarse Aggregate by Abrasion and Impact inthe Los Angeles MachineASTM C136/C136MStandard Test Method for Sieve Analysis of Fine andCoarse AggregatesASTM C138/C138MStandard Test Method for Density (Unit Weight), Yield, andAir Content (Gravimetric) of ConcreteASTM C140/C140MStandard Test Methods for Sampling and Testing ConcreteMasonry Units and Related UnitsASTM C142/C142MStandard Test Method for Clay Lumps and Friable Particlesin AggregatesASTM C143/C143MStandard Test Method for Slump of Hydraulic-CementConcreteTL-664ARAB COMPANY FORLABORATORIES AND SOILMethodforLightweightParticlesinPage 2 of 8

ASTM C172/C172Standard Practice for Sampling Freshly Mixed ConcreteASTM C187Standard Test Method for Amount of Water Required forNormal Consistency of Hydraulic Cement Paste ASTMC172/C172 14a Standard Practice for Sampling FreshlyMixed ConcreteASTM C191Standard Test Methods for Time of Setting of HydraulicCement by Vicat NeedleASTM C192Standard Practice for Making and Curing Concrete TestSpecimens in the LaboratoryASTM C227Standard Test Method for Potential Alkali Reactivity ofCement-Aggregate Combinations (Mortar-Bar Method)ASTM C230/C230MStandard Specification for Flow Table for Use in Tests ofHydraulic CementASTM C231/C231MStandard Test Method for Air Content of Freshly MixedConcrete by the Pressure MethodASTM C494/C494MStandardConcreteASTM C511Standard Specification for Mixing Rooms, Moist Cabinets,Moist Rooms, and Water Storage Tanks Used in the Testingof Hydraulic Cements and ConcretesASTM C535Standard Test Method for Resistance to Degradation ofLarge-Size Coarse Aggregate by Abrasion and Impact inthe Los Angeles MachineASTM C566Standard Test Method for Total Evaporable MoistureContent of Aggregate by DryingASTM C617/C617MStandard PracticeSpecimensASTM C702/702MStandard Practice for Reducing Samples of Aggregate toTesting SizeASTM C805/C805MStandard Test Method for Rebound Number of HardenedConcreteASTM C1019Standard Test Method for Sampling and Testing Grout forMasonryASTM C1064/C1064MStandard Test Method for Temperature of Freshly MixedHydraulic-Cement ConcreteASTM C1202Standard Test Method for Electrical IndicationConcrete’s Ability to Resist Chloride Ion PenetrationTL-664ARAB COMPANY FORLABORATORIES AND lindricalforConcreteofPage 3 of 8

ASTM C1314Standard Test Method for Compressive Strength ofMasonry PrismsASTM D75/D75MStandard Practice for Sampling AggregatesASTM D422Standard Test Method for Particle-Size Analysis of SoilsASTM D512Standard Test Methods for Chloride Ion In WaterASTM D516Standard Test Method for Sulfate Ion in WaterASTM D523Standard Test Method for Specular GlossASTM D562Standard Test Method for Consistency of Paints MeasuringKrebs Unit (KU) Viscosity Using a Stormer-TypeViscometerASTM D823Standard Practices for Producing Films of UniformThickness of Paint, Coatings and Related Products on TestPanelsASTM D968Standard Test Methods for Abrasion Resistance of OrganicCoatings by Falling AbrasiveASTM D1005Standard Test Method for Measurement of Dry-FilmThickness of Organic Coatings Using MicrometersASTM D1067Standard Test Methods for Acidity or Alkalinity of WaterASTM D1125Standard Test Methods for Electrical Conductivity andResistivity of WaterASTM D1140Standard Test Methods for Determining the Amount ofMaterial Finer than 75-μm (No. 200) Sieve in Soils byWashingASTM D1194Standard Test Method for Bearing Capacity of Soil forStatic Load and Spread FootingsASTM D1210Standard Test Method for Fineness of Dispersion ofPigment-Vehicle Systems by Hegman-Type GageASTM D1214Standard Test Method for Sieve Analysis of Glass SpheresASTM D1293Standard Test Methods for pH of WaterASTM D1475Standard Test Method for Density of Liquid Coatings, Inks,and Related ProductsASTM D1556/D1556MStandard Test Method for Density and Unit Weight of Soilin Place by Sand-Cone MethodASTM D1557Standard Test Methods for Laboratory CompactionCharacteristics of Soil Using Modified Effort (56,000 ftlbf/ft3 (2,700 kN-m/m3)TL-664ARAB COMPANY FORLABORATORIES AND SOILPage 4 of 8

ASTM D1883Standard Test Method for CBR (California Bearing Ratio) ofLaboratory-Compacted SoilsASTM D2041/D2041MStandard Test Method for Theoretical Maximum SpecificGravity and Density of Bituminous Paving MixturesASTM D2172/D2172MStandard Test Methods for Quantitative Extraction ofBitumen From Bituminous Paving MixturesASTM D2216Standard Test Methods for Laboratory Determination ofWater (Moisture) Content of Soil and Rock by MassASTM D2369Standard Test Method for Volatile Content of CoatingsASTM D2419Standard Test Method for Sand Equivalent Value of Soilsand Fine AggregateASTM D2486Standard Test Methods for Scrub Resistance of Wall PaintsASTM D2726/D2726MStandard Test Method for Bulk Specific Gravity and Densityof Non-Absorptive Compacted Bituminous MixturesASTM D2794Standard Test Method for Resistance of Organic Coatingsto the Effects of Rapid Deformation (Impact)ASTM D2937Standard Test Method for Density of Soil in Place by theDrive-Cylinder MethodASTM D3080/D3080MStandard Test Method for Direct Shear Test of Soils UnderConsolidated Drained ConditionsASTM D3359Standard Test Methods for Rating Adhesion by Tape TestASTM D3363Standard Test Method for Film Hardness by Pencil TestASTM D3549/D3549MStandard Test Method for Thickness or HeightCompacted Bituminous Paving Mixture SpecimensASTM D4138Standard Practices for Measurement of Dry Film Thicknessof Protective Coating Systems by Destructive, CrossSectioning MeansASTM D4253Standard Test Methods for Maximum Index Density andUnit Weight of Soils Using a Vibratory TableASTM D4254Standard Test Methods for Minimum Index Density andUnit Weight of Soils and Calculation of Relative DensityASTM D4318Standard Test Methods for Liquid Limit, Plastic Limit, andPlasticity Index of SoilsASTM D4451Standard Test Method for Pigment Content of Paints byLow-Temperature AshingTL-664ARAB COMPANY FORLABORATORIES AND SOILofPage 5 of 8

ASTM D4541Standard Test Method for Pull-Off Strength of CoatingsUsing Portable Adhesion TestersASTM D4643Standard Test Method for Determination of Water Contentof Soil and Rock by Microwave Oven HeatingASTM D5731Standard Test Method for Determination of the Point LoadStrength Index of Rock and Application to Rock StrengthClassificationsASTM D5895Standard Test Methods for Evaluating Drying or CuringDuring Film Formation of Organic Coatings UsingMechanical Recorders1ASTM D5907Standard Test Methods for Filterable MatterDissolved Solids) and Nonfilterable MatterSuspended Solids) in WaterASTM D5957Standard Guide for Flood Testing Horizontal WaterproofingInstallationsASTM D6132Standard Test Method for Nondestructive Measurement ofDry Film Thickness of Applied Organic Coatings Using anUltrasonic Coating Thickness GageASTM D6528Standard Test Method for Consolidated Undrained DirectSimple Shear Testing of Cohesive SoilsASTM D6926Standard Practice for PreparationSpecimens Using Marshall ApparatusASTM D6927Standard Test Method for Marshall Stability and Flow ofAsphalt MixturesASTM D6938Standard Test Method for In-Place Density and WaterContent of Soil and Soil-Aggregate by Nuclear Methods(Shallow Depth)ASTM D7234Standard Test Method for Pull-Off Adhesion Strength ofCoatings on Concrete Using Portable Pull-Off AdhesionTestersASTM E90Standard Test Method for Laboratory Measurement ofAirborne Sound Transmission Loss of Building Partitionsand ElementsASTM E336Standard Test Method for Measurement of Airborne SoundAttenuation between Rooms in BuildingsASTM E709Standard Guide for Magnetic Particle TestingASTM E950Standard Test Method for Measuring the LongitudinalProfile of Traveled Surfaces with an AccelerometerEstablished Inertial Profiling ReferenceTL-664ARAB COMPANY FORLABORATORIES AND SOILof(Total(TotalBituminousPage 6 of 8