Table-I :Correction Factor for Variation in Specific Gravity of water due to Temperature
 

Temperature °C

K27

15

1.0026

16

1.0024

17

1.0023

18

1.0021

19

1.0019

20

1.0017

21

1.0015

22

1.0013

23

1.0010

24

1.0008

25

1.0005

26

1.0003

27

1

28

0.9997

29

0.9994

30

0.9991

31

0.9988

32

0.9985

33

0.9982

34

0.9979

35

0.9975

36

0.9972

37

0.9968

38

0.9964

39

0.9961

40

0.9957

 

 

Table-II : Values of Effective Depth on Hydrometer and Sedimentation Cylinder of Specified Sizes

 

Hydrometer  151 H

Hydrometer

Reading

Effective

Depth,  L,

Cm

Hydrometer

Reading

Effective

Depth, L,

Cm

1.000

16.3

1.020

11.0

1.001

16.0

1.021

10.7

1.002

15.8

1.022

10.5

1.003

15.5

1.023

10.2

1.004

15.2

1.024

10.0

1.005

15.0

1.025

  9.7

1.006

14.7

1.026

9.4

1.007

14.4

1.027

9.2

1.008

14.2

1.028

8.9

1.009

13.9

1.029

8.6

1.010

13.7

1.030

8.4

1.011

13.4

1.031

8.1

1.012

13.1

1.032

7.8

1.013

12.9

1.033

7.6

1.014

12.6

1.034

7.3

1.015

12.3

1.035

7.0

1.016

12.1

1.036

6.8

1.017

11.8

1.037

6.5

1.018

11.5

1.038

6.2

1.019

11.3

 

 

 

   

Table-III: Values of K for Use in Formula for Computing Diameter of Particle in Hydrometer Analysis

 

Temp. ēC

Specific Gravity of Soil Particles

 

2.45

2.50

2.55

2.60

2.65

2.70

2.75

2.80

2.85

16

0.01531

0.01505

0.01481

0.01457

0.01435

0.01414

0.01394

0.01374

0.01356

17

0.01511

0.01486

0.01462

0.01439

0.01417

0.01396

0.01376

0.01356

0.01338

18

0.01492

0.01467

0.01443

0.01421

0.01399

0.01378

0.01359

0.01339

0.01321

19

0.01474

0.01449

0.01425

0.01403

0.01382

0.01361

0.01342

0.01323

0.01305

20

0.01456

0.01431

0.01408

0.01386

0.01365

0.01344

0.01325

0.01307

0.01289

21

0.01438

0.01414

0.01391

0.01369

0.01348

0.01328

0.01309

0.01291

0.01273

22

0.01421

0.01397

0.01374

0.01353

0.01332

0.01312

0.01294

0.01276

0.01258

23

0.01404

0.01381

0.01358

0.01337

0.01317

0.01297

0.01279

0.01261

0.01243

24

0.01388

0.01365

0.01342

0.01321

0.01301

0.01282

0.01264

0.01246

0.01229

25

0.01372

0.01349

0.01327

0.01306

0.01286

0.01267

0.01249

0.01232

0.01215

26

0.01357

0.01334

0.01312

0.01291

0.01272

0.01253

0.01235

0.01218

0.01201

27

0.01342

0.01319

0.01297

0.01277

0.01258

0.01239

0.01221

0.01204

0.01188

28

0.01327

0.01304

0.01283

0.01264

0.01244

0.01225

0.01208

0.01191

0.01175

29

0.01312

0.01290

0.01269

0.01249

0.01230

0.01212

0.01195

0.01173

0.01162

30

0.01298

0.01276

0.01256

0.01236

0.01217

0.01199

0.01182

0.01165

0.01149

 

 

Table-IV: Variation of ht / h27

 

Temperature

15

16

17

18

19

20

21

22

ht / h27

1.336

1.301

1.268

1.237

1.206

1.177

1.149

1.122

Temperature

23

24

25

26

27

28

29

30

ht / h27

1.096

1.071

1.046

1.023

1.000

0.979

0.958

0.938