Accredited & Certified Laboratory

NABL & ISO/IEC 17025:2017 Certifications

V2 Civil Diagnostics is accredited by NABL (National Accreditation Board for Testing and Calibration Laboratories) under ISO/IEC 17025:2017 for construction materials testing.

NABL Accredited
ISO/IEC 17025:2017
Government Approved

What Does NABL Accreditation Mean?

NABL (National Accreditation Board for Testing and Calibration Laboratories) is India's apex accreditation body for laboratories. NABL accreditation under ISO/IEC 17025:2017 means:

  • Our tests follow international standards and best practices
  • All equipment is regularly calibrated and maintained
  • Our procedures are audited and verified annually
  • Test reports are accepted by all government and private agencies in India
  • Our lab meets the same quality standards as internationally recognized laboratories

In short: Your results can be trusted. NABL accreditation is your guarantee of quality and compliance.

Our NABL Certificate

Certificate Number: TC-17626 | ISO/IEC 17025:2017 Accreditation

NABL Certificate TC-17626

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Scope of Accreditation

Certificate Number: TC-17626 | Valid: 27/02/2026 to 26/02/2030 | 117 Permanent Tests + 2 Site Tests

Scope of Accreditation TC-17626

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Detailed Scope of Testing

Our NABL accreditation covers 117 permanent laboratory tests and 2 on-site tests across 8 discipline groups. Click any category below to view the full list of accredited tests.

55
Chemical Tests
60
Mechanical Tests
2+2
NDT Tests (Lab + Site)

Permanent Laboratory Testing 117 Tests

# Material / Product Test Performed Test Method / IS Code
1Granulated Blast Furnace SlagCalcium Oxide (CaO)IS 4032
2Granulated Blast Furnace SlagSulphate as SO3IS 4032
3Fine AggregateAlkali Aggregate Reactivity – Dissolved SilicaIS 2386 (Part-7)
4Cement (OPC 43 & 53 Grade, PPC, PSC)Silica content as SiO2IS 4032
5Cement (OPC 43 & 53 Grade, PPC, PSC)Ferric OxideIS 4032
6Cement (OPC 43 & 53 Grade, PPC, PSC)AluminaIS 4032
7Cement (OPC 43 & 53 Grade, PPC, PSC)Calcium OxideIS 4032
8Cement (OPC 43 & 53 Grade, PPC, PSC)ChlorideIS 4032
9Cement (OPC 43 & 53 Grade, PPC, PSC)Insoluble ResidueIS 4032
10Cement (OPC 43 & 53 Grade, PPC, PSC)MagnesiaIS 4032
11Cement (OPC 43 & 53 Grade, PPC, PSC)Sulphuric Anhydride (SO3)IS 4032
12Cement (OPC 43 & 53 Grade, PPC, PSC)Loss On IgnitionIS 4032
13AdmixtureAsh ContentIS 9103
14AdmixtureChlorideIS 6925
15AdmixtureDry Material ContentIS 9103
16AdmixturepHIS 9103
17AdmixtureRelative DensityIS 9103
18Coarse AggregateSulphateBS EN 1744 (Part-1)
19Coarse AggregateAlkali Aggregate Reactivity – Dissolved SilicaIS 2386 (Part-7)
20Coarse AggregateAlkali Aggregate Reactivity – Reduction in AlkalinityIS 2386 (Part-7)
21Coarse AggregateChlorideBS EN 1744 (Part-1)
22Fine AggregateAlkali Aggregate Reactivity – Reduction in AlkalinityIS 2386 (Part-7)
23Fine AggregateChlorideBS EN 1744 (Part-1)
24Fine AggregateOrganic ImpuritiesIS 2386 (Part-2)
25Fine AggregateSulphateBS EN 1744 (Part-1)
26Granulated Blast Furnace SlagAluminaIS 4032
27Granulated Blast Furnace SlagChlorideIS 4032
28Granulated Blast Furnace SlagFerric OxideIS 4032
29Granulated Blast Furnace SlagInsoluble ResidueIS 4032
30Granulated Blast Furnace SlagLoss On IgnitionIS 4032
31Granulated Blast Furnace SlagMagnesium Oxide (MgO)IS 4032
32Granulated Blast Furnace SlagManganese Oxide (MnO)IS 4032
33Granulated Blast Furnace SlagSilica as SiO2IS 4032
34Granulated Blast Furnace SlagSulphide SulphurIS 4032
# Material / Product Test Performed Test Method / IS Code
35Plain Carbon & Low Alloy SteelCarbonIS 8811
36Plain Carbon & Low Alloy SteelPhosphorusIS 8811
37Plain Carbon & Low Alloy SteelSulfurIS 8811
# Material / Product Test Performed Test Method / IS Code
38SoilOrganic MatterIS 2720 (Part-22)
39SoilpHIS 2720 (Part-26)
40SoilTotal Soluble SulphatesIS 2720 (Part-27)
# Material / Product Test Performed Test Method / IS Code
41Drinking WaterChlorideIS 3025 (Part-32)
42Drinking WaterOdourIS 3025 (Part-5)
43Drinking WaterpHIS 3025 (Part-11)
44Drinking WaterSulphate as SO4IS 3025 (Part-24 / Sec-1)
45Drinking WaterTotal Alkalinity as Calcium CarbonateIS 3025 (Part-23)
46Drinking WaterTotal Dissolved SolidsIS 3025 (Part-18)
47Drinking WaterTotal Hardness as Calcium CarbonateIS 3025 (Part-21)
48Water for ConstructionAcidityIS 3025 (Part-22)
49Water for ConstructionAlkalinityIS 3025 (Part-23)
50Water for ConstructionChlorideIS 3025 (Part-32)
51Water for ConstructionInorganic SolidsIS 3025 (Part-18)
52Water for ConstructionOrganic SolidsIS 3025 (Part-18)
53Water for ConstructionpHIS 3025 (Part-11)
54Water for ConstructionSulphate as SO3IS 3025 (Part-24 / Sec-1)
55Water for ConstructionSuspended SolidsIS 3025 (Part-17)
# Material / Product Test Performed Test Method / IS Code
56Fine Aggregate / Sand (Natural, M, C, P, Masonry)Materials Finer than 75 MicronsIS 2386 (Part-1)
57Cement (OPC)Fineness by Blaine’s Air PermeabilityIS 4031 (Part-2)
58Cement (OPC / PPC / PSC)Compressive StrengthIS 4031 (Part-6)
59Cement (OPC / PPC / PSC)DensityIS 4031 (Part-11)
60Cement (OPC / PPC / PSC)Final Setting TimeIS 4031 (Part-5)
61Cement (OPC / PPC / PSC)Fineness by Dry SievingIS 4031 (Part-1)
62Cement (OPC / PPC / PSC)Initial Setting TimeIS 4031 (Part-5)
63Cement (OPC / PPC / PSC)Normal ConsistencyIS 4031 (Part-4)
64Cement (OPC / PPC / PSC)Soundness by Le-Chatelier MethodIS 4031 (Part-3)
65Coarse AggregateApparent Specific GravityIS 2386 (Part-3)
66Coarse AggregateBulk Density – LooseIS 2386 (Part-3)
67Coarse AggregateBulk Density – RoddedIS 2386 (Part-3)
68Coarse AggregateCrushing ValueIS 2386 (Part-4 / Cl-2.0)
69Coarse AggregateElongation IndexIS 2386 (Part-1 / Cl-5.0)
70Coarse AggregateFlakiness IndexIS 2386 (Part-1 / Cl-4.0)
71Coarse AggregateImpact ValueIS 2386 (Part-4 / Cl-4.0)
72Coarse AggregateSieve Analysis (80 mm to 2.36 mm)IS 2386 (Part-1 / Cl-2.0)
73Coarse AggregateSoundness – Magnesium SulphateIS 2386 (Part-5)
74Coarse AggregateSoundness – Sodium SulphateIS 2386 (Part-5)
75Coarse AggregateSpecific Gravity – Dry BasisIS 2386 (Part-3)
76Coarse AggregateSpecific Gravity – SSDIS 2386 (Part-3)
77Coarse AggregateTen Percent Fines ValueIS 2386 (Part-4 / Cl-3.0)
78Coarse AggregateWater AbsorptionIS 2386 (Part-3)
79Concrete CubeCompressive Strength (Accelerated Curing)IS 9013
80Fine Aggregate / Sand (Natural, M, C, P, Masonry)Apparent Specific GravityIS 2386 (Part-3)
81Fine Aggregate / Sand (Natural, M, C, P, Masonry)Bulk Density – LooseIS 2386 (Part-3)
82Fine Aggregate / Sand (Natural, M, C, P, Masonry)Bulk Density – RoddedIS 2386 (Part-3)
83Fine Aggregate / Sand (Natural, M, C, P, Masonry)Sieve Analysis (0.150 mm to 10 mm)IS 2386 (Part-1 / Cl-2.0)
84Fine Aggregate / Sand (Natural, M, C, P, Masonry)Specific Gravity – Dry BasisIS 2386 (Part-3)
85Fine Aggregate / Sand (Natural, M, C, P, Masonry)Specific Gravity – SSDIS 2386 (Part-3)
86Fine Aggregate / Sand (Natural, M, C, P, Masonry)Water AbsorptionIS 2386 (Part-3 / Cl-2.0)
87Fine AggregatesSoundness – Magnesium SulphateIS 2386 (Part-5)
88Fine AggregatesSoundness – Sodium SulphateIS 2386 (Part-5)
89GGBS (Ground Granulated Blast Furnace Slag)DensityIS 4031 (Part-11)
90GGBS (Ground Granulated Blast Furnace Slag)Normal ConsistencyIS 16714
91GGBS (Ground Granulated Blast Furnace Slag)Normal ConsistencyIS 4031 (Part-4)
92GGBS (Ground Granulated Blast Furnace Slag)Slag Activity IndexIS 16714
93GGBS (Ground Granulated Blast Furnace Slag)Slag Activity IndexIS 4031 (Part-6)
94GGBS (Ground Granulated Blast Furnace Slag)Fineness by Blaine’s Air PermeabilityIS 16714
95GGBS (Ground Granulated Blast Furnace Slag)Fineness by Blaine’s Air PermeabilityIS 4031 (Part-2)
96Hardened ConcreteCompressive Strength (Core)IS 516 (Part-4)
97Hardened ConcreteCompressive Strength (Cube)IS 516 (Part-1 / Sec-1)
98Hollow & Solid Concrete BlocksBlock DensityIS 2185 (Part-1)
99Hollow & Solid Concrete BlocksCompressive StrengthIS 2185 (Part-1)
100Hollow & Solid Concrete BlocksWater AbsorptionIS 2185 (Part-1)
# Material / Product Test Performed Test Method / IS Code
101High Strength Deformed Steel Bars & WiresBend TestIS 1599
102High Strength Deformed Steel Bars & WiresPercentage ElongationIS 1608 (Part-1)
103High Strength Deformed Steel Bars & WiresRe-Bend TestIS 1786
104High Strength Deformed Steel Bars & WiresUltimate Tensile StrengthIS 1608 (Part-1)
105High Strength Deformed Steel Bars & WiresWeight / MeterIS 1786
106High Strength Deformed Steel Bars & WiresYield StrengthIS 1608 (Part-1)
# Material / Product Test Performed Test Method / IS Code
107SoilCalifornia Bearing Ratio (CBR)IS 2720 (Part-16)
108SoilGrain Size Analysis – Wet (0.075 mm to 10 mm)IS 2720 (Part-4 / Cl-3&4)
109SoilHeavy Compaction – Maximum Dry DensityIS 2720 (Part-8)
110SoilHeavy Compaction – Optimum Moisture ContentIS 2720 (Part-8)
111SoilLight Compaction – Maximum Dry DensityIS 2720 (Part-7)
112SoilLight Compaction – Optimum Moisture ContentIS 2720 (Part-7)
113SoilLiquid LimitIS 2720 (Part-5)
114SoilPlastic LimitIS 2720 (Part-5)
115SoilWater Content by Oven Drying MethodIS 2720 (Part-2)
# Material / Product Test Performed Test Method / IS Code
116Hardened ConcreteRebound HammerIS 516 (Part-5 / Sec-4)
117Hardened ConcreteUltrasonic Pulse Velocity (UPV)IS 516 (Part-5 / Sec-1)

On-Site Testing 2 Tests

# Material / Product Test Performed Test Method / IS Code
1Hardened ConcreteRebound HammerIS 516 (Part-5 / Sec-4)
2Hardened ConcreteUltrasonic Pulse Velocity (UPV)IS 516 (Part-5 / Sec-1)

Material Testing Guide

Complete reference for testing duration, sample quantity requirements, and NABL accreditation status across all construction materials.

7
Material Categories
85+
Test Parameters
1–10
Days per Category
NABL
Accredited Tests Marked
Total Sample (Mechanical): 25 Kgs Total Sample (Chemical): 1 Kg IS Reference: IS 4031, IS 4032
# Test Parameter Test Method Duration Sample Qty NABL
Mechanical Tests
1Fineness (Blaine’s Method) OPC onlyIS 4031, Part 22 Days1 KgNABL
2Normal ConsistencyIS 4031, Part 41 Day5 KgsNABL
3Setting Time (Initial & Final)IS 4031, Part 52 Days7.5 KgsNABL
4Compressive Strength (3 & 7 Days)IS 4031, Part 68 Days10 KgsNABL
5Specific GravityIS 4031, Part 111 Day1 KgNABL
6Soundness (Le Chatelier’s Method)IS 4031, Part 32 Days7.5 KgsNABL
790 Microns Dry SieveIS 4031, Part 11 Day1 KgNABL
Chemical Tests
8Loss On IgnitionIS 40321 Day1 KgNABL
9Silica Content (SiO2)IS 40321 DayNABL
10Ferric Oxide (Fe2O3)IS 40321 DayNABL
11Alumina (Al2O3)IS 40321 DayNABL
12Calcium Oxide (CaO)IS 40321 DayNABL
13ChlorideIS 40321 DayNABL
14Insoluble ResidueIS 40321 DayNABL
15Magnesia (MgO)IS 40321 DayNABL
16Sulphuric Anhydride (SO3)IS 40322 DaysNABL
Total Sample (Mechanical): 15 Kgs Total Sample (Chemical): 1 Kg IS Reference: IS 4031, IS 4032, IS 16714
# Test Parameter Test Method Duration Sample Qty NABL
Mechanical Tests
1Normal ConsistencyIS 4031, Part 41 Day5 KgsNABL
2Fineness (Blaine’s Method)IS 4031, Part 22 Days1 KgNABL
3Compressive Strength (7 Days)IS 4031, Part 68 Days10 KgsNABL
4Specific GravityIS 4031, Part 111 Day1 KgNABL
545 Microns Wet SieveIS 17272 Days1 KgNABL
Chemical Tests
6Calcium Oxide (CaO)IS 40321 Day1 KgNABL
7Sulphate as SO3IS 40321 DayNABL
8AluminaIS 40321 DayNABL
9ChlorideIS 40321 DayNABL
10Ferric OxideIS 40321 DayNABL
11Insoluble ResidueIS 40321 DayNABL
12Loss On IgnitionIS 40321 DayNABL
13Magnesium Oxide (MgO)IS 40321 DayNABL
14Manganese Oxide (MnO)IS 40321 DayNABL
15Silica as SiO2IS 40321 DayNABL
16Sulphide SulphurIS 40322 DaysNABL
Total Sample (Mechanical): 2 Kgs Total Sample (Chemical): 1 Kg IS Reference: IS 1727
# Test Parameter Test Method Duration Sample Qty NABL
Mechanical Tests
1Specific GravityIS 17271 Day1 KgNon-NABL
245 Microns Wet SieveIS 17272 Days1 KgNon-NABL
Chemical Tests
3Silica Content (SiO2)IS 17272 Days1 KgNon-NABL
4Alumina Content (Al2O3)IS 17271 DayNon-NABL
5Ferric Oxide (Fe2O3)IS 17271 DayNon-NABL
6Silica + Alumina + Ferric OxideIS 17271 DayNon-NABL
7Calcium Oxide (CaO)IS 17271 DayNon-NABL
8Magnesium Oxide (MgO)IS 17271 DayNon-NABL
9Sulphur Tri Oxide (SO3)IS 17272 DaysNon-NABL
10Loss on IgnitionIS 17271 DayNon-NABL
11ChlorideIS 17271 DayNon-NABL
Total Sample Required: 1 Kg IS Reference: IS 4032, IS 12089
# Test Parameter Test Method Duration Sample Qty NABL
Chemical Tests
1Calcium Oxide (CaO)IS 40321 Day1 KgNon-NABL
2Sulphate as SO3IS 40321 DayNon-NABL
3AluminaIS 40321 DayNon-NABL
4ChlorideIS 40321 DayNon-NABL
5Ferric OxideIS 40321 DayNon-NABL
6Insoluble ResidueIS 40321 DayNon-NABL
7Loss On IgnitionIS 40321 DayNon-NABL
8Magnesium Oxide (MgO)IS 40322 DaysNon-NABL
9Manganese Oxide (MnO)IS 40321 DayNon-NABL
10Silica as SiO2IS 40321 DayNon-NABL
11Sulphide SulphurIS 40321 DayNon-NABL
6mm Agg: 40 Kgs 10/12mm Agg: 75 Kgs 20mm Agg: 100 Kgs 40mm Agg: >120 Kgs IS Reference: IS 2386, IS 383
# Test Parameter Test Method Duration Sample Qty (per size) NABL
Mechanical Tests
1Sieve Analysis / Fineness ModulusIS 2386, Part 11 Day5 – 20 KgsNABL
2Crushing ValueIS 2386, Part 42 Days25 – 75 KgsNABL
3Water AbsorptionIS 2386, Part 33 Days5 – 10 KgsNABL
4Specific GravityIS 2386, Part 33 Days5 – 10 KgsNABL
5Impact ValueIS 2386, Part 42 Days25 – 60 KgsNABL
6Bulk Density (Loose & Rodded)IS 2386, Part 32 Days30 – 60 KgsNABL
710% Fine ValueIS 2386, Part 42 Days40 – 75 KgsNABL
8Elongation Index & Flakiness IndexIS 2386, Part 11 Day20 – 100 KgsNABL
Chemical Tests
9ChlorideBS EN 1744, Part 12 Days8 KgsNABL
10SulphateBS EN 1744, Part 12 DaysNABL
11pHIS 2720 Part-261 DayNon-NABL
12SoundnessIS 2386 Part-56 DaysNABL
13Lightweight PiecesIS 2386 Part-21 DayNon-NABL
14Organic ImpuritiesIS 2386 Part-21 DayNABL
15Alkali Aggregate Reactivity – Dissolved SilicaIS 2386 Part-73 DaysNABL
16Alkali Aggregate Reactivity – Reduction in AlkalinityIS 2386 Part-73 DaysNABL
Chemical tests – Period of test will be 4 days without soundness test.
Total Sample (All Tests): 20 Kgs IS Reference: IS 2386, IS 383
# Test Parameter Test Method Duration Sample Qty NABL
Mechanical Tests
1Sieve Analysis / Fineness ModulusIS 2386, Part 11 Day5 KgsNABL
2% Silt by WeightIS 2386, Part 12 Days5 KgsNABL
3Water AbsorptionIS 2386, Part 33 Days5 KgsNABL
4Specific GravityIS 2386, Part 33 Days5 KgsNABL
5Bulk Density (Loose & Rodded)IS 2386, Part 32 Days10 KgsNABL
Chemical Tests
6ChlorideBS EN 1744, Part 12 Days8 KgsNABL
7SulphateBS EN 1744, Part 12 DaysNABL
8pHIS 2720 Part-261 DayNon-NABL
9SoundnessIS 2386 Part-56 DaysNABL
10Lightweight PiecesIS 2386 Part-21 DayNon-NABL
11Organic ImpuritiesIS 2386 Part-21 DayNABL
12Alkali Aggregate Reactivity – Dissolved SilicaIS 2386 Part-73 DaysNABL
13Alkali Aggregate Reactivity – Reduction in AlkalinityIS 2386 Part-73 DaysNABL
Sample Required: 3 Cubes per test IS Reference: IS 516, IS 9013, IS 456
# Test Parameter Test Method Duration Sample Qty NABL
1ACT – Accelerated Cube TestIS 90131 Day3 CubesNABL
2Compressive StrengthIS 516 Part-1/Sec 11 Day3 CubesNABL

Our Accreditations

🏆

NABL Accreditation

ISO/IEC 17025:2017

Full accreditation for construction materials testing under NABL.

📋

Scope of Accreditation

12 Material Categories

Cement, aggregates, concrete, steel, soil, water, NDT, bricks, wood, fly ash, and admixtures

🔬

Test Parameters

120+ Individual Tests

All conducted per applicable IS codes and NABL protocols. Measurement uncertainty within ±2%.

Why Our Certifications Matter

Yes. NABL accreditation means our reports meet the quality and compliance standards required by all government agencies in Karnataka, including BBMP, BDA, KPWD, and NHAI.

ISO/IEC 17025:2017 is the international standard that defines the requirements for a testing laboratory. NABL accreditation means an independent body (NABL) has verified that our lab meets or exceeds this standard.

Our lab undergoes regular internal audits and external audits by NABL at least once every year. We also maintain an internal quality management system to ensure continuous compliance.

Yes. You can verify our accreditation directly on the NABL website or request our accreditation certificate. Contact us for a copy.

We follow applicable IS codes: IS 4031 & IS 4032 for cement, IS 516 for concrete, IS 1786 for steel, IS 2386 for aggregates, IS 2720 for soil, IS 13311 for NDT, and others as per material type.

Trust NABL. Trust V2.

Get accurate, accredited test reports for your construction materials project.

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