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है”ह”ह

IS 10170 (1982): Byproduct Gypsum [FAD 7: Soil Quality andGertilizers]

IS : 10170 ·1982( Reaffirmed 1885 )

Indian Standard

SPE(~IFI(:ATIONFORBYPRODUCT GYPSUM

( First Reprint SEPTEMBER1995)

UDC t"\1.N21.~

© Copyright 19~2

II U REA U o r I N D I A N S TAN n A R I) S\1/\~AK BIlAVAN. 9 BAHADUR SHAll ZAfAR MARG

NEW DELHI 110002

IS : 10170 • 1982

Indian StandardSPECIFICATION FOR

BYPRODUCT GYPSUM

Soil Amendments and Reclamation of Problem Soi ls SectionalCommittee, AFDC 45

RtpTtsentin!!.

(;t'ntral ~oil Sal'initv Research Institute, Kamal

Tamil Nadu Agricultural University t CoimbatoreMessrs Pyrites, Phosphates & Chemicals Limited,

Rohtas ( Bihar)

Coll('~(' of Agriculture:', Hary an t AgriculturalUniversitv, Hiuar

Gujarat ,\griculturaJ University, AhmadabadAssam Agricultural University, JorhatPunjab l...and Development and Reclamation

Corporation Ltd, ChandigarhHindustan Zinc Limited, New DelhiKhar Land Development Board, AhmadabadMahatma Phule Agricultural University, Rahuri

( Maharashtra )

(.hairman

J)ft J. ~. P. YAfl'V

..'-InnhtnSIIHJ I>. X. DB.\u(, 'V.\ Indian Bureau of ~lint'" (~tilli,tl \ of Steel &

Mines ", Nagpur:-'lIUI A. S. (;01' , r, \CJI'UI { Alternate )

nit 7'J. c. nl~RS'\TH \Ve\t Bengal .\griculturall;nh·er~ity,KalyaniS.fltJ Dr-v R ',l 1)"t~f:H" Haryana Land Reclamation & Development

Corporation Limited, ChandigarhSunr P. (}. Drvn Hindustan Copper Li mitr-d, Calcutta

SHRJ P. l:HO\'IHlt'HI ( Alternate)Du C. P. GHnN'~IK vn Marathwada Agricultural University, Parbhani

( Mahara- htra )D It C. U. 1\1" LJo~\V A It ( Alternate )

IJr: R. :'\. (;rPT.~ Department of Agriculture, Government of UttarPradesh, Lucknow

Department of Agriculturv, (;ovcrnment of Gujarat,Ahmadabad

Joint Commissioner ( Soil Conservation), Ministryof Agriculture, Nt,,\, 1)~Jhi

Dn K. L. J.'JI.~v

DR K. N. GOEL ( Alumate )Dn M."HENDltA Srxon

])rt (i. P GUPT.' ( Alternate )DR K. K. KIU~HNAMURTItYSURr K. L. LUTHH.~

JOINT ~OM)IJR~tnN.~U ( SC )

DR H. C. Ml!;}lT-\DR A. K. NATHSam MOHINl>lCR SINUH PARI....

SRRI P. P An V ATJIJSJtUDR M. M. P....TEJ~DR N. D. PA'flL

( Continutd on pag, 2 )

@ e.,;,n,IaI 1982I8UREAU OF INDIAN STANDARDS

l'bis publication is protected under the l"dulr. Cft!'",.,ht A" ( XIV of 1957) andreproduction in whole or in part by any means except with written permissicn of thepubl ilber .hall be deemed to be an infrinl(llmpnt of copvright under the said Act.

IS I 10170• 1_

Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabal­pur

Departme-nt (If Agriculture, Government of Punjab,Chandigarh

Directorate of Agriculture, Maharashtra State, Pune

College of Agriculture, University of .\griculture &Technology, Pantnagar

Rajendra Agricultural University PatnaDB H. SINHADR N. P. SIYHA ( Alternate)

DR S. B. SlSHs:

SaRI SUKHDEV Sl~GH

Memb,rsDR ~. PATNAIKDR K. P. RAJ.'R.'l\lDR RAKENDK.~ SINOHSual P. JAY.~NTHA RAOSHRI K. RAIfAr..nro.,- REDDY

ReJJTesenluzg

Indian Council of .AKricultural Research, :"('\V Delh iKera)a Agricultural University, TrichurThe Fertilizer &\ssociation of India, ~~W DelhiMinistry of Petroleum & Chemicals, ~e,v DelhiDepartment of ARriculture, Government of Andhra

Pradesh, HyderabadSRRI M. A. RAZ.'K KR.,~ (Alternate)

DB M. B. SEN GCPTA Indian Agricultural Research Instituto, Xew DelhiSKRI AlliN CJ[.~!lrD SK.'RU.' Department of Agriculture, Government of Haryana,

ChandigarhC". S. Azad University of &\gricu1ture & Technology,

KanpurRajasthan State Industrial Development & Invest­

ment Corporation Ltd, JaipurDB N. T. SINOH Punjab Agricultural University, Ludhiana

DR M. S. B.'Jw., ( Alternate)DR T. A. SISGH

SUPERINTBNDING SOIL COSSBRVA­TION OF:rICER

CHIEF SOIL SURVEY OFFICER ( Alt,rnat, )SBBI C. V. T ALOft. Department of Agriculture, Government of Kama-

'". taka, BangaloreDB B. R. TltJPATHI Himachal Pradesh Agricultural Universityt SolanDR.K. VENXAT RAJU Andhra Pradesh Agricultural Univt'rsity, HyderabadSSBI T. PUBNANANDAM, Director General, lSI ( Ex-officio ,,\lem6eT )

Director ( Agri & Food )

Secreta1YSHRI M. L. Kt:MAR

Deputy Director ( Agri &. Food ), lSI

Soil Amendments for Alkali Soils Panel, AFDC 45 : P2

Co""'",,rDR S. T. SINOH Punjab Agricultural University, Ludhiana

M,mb,rsDa I. P. ABROL Central Soil Salinity Research Institute, KarnalSHRI P. G.-DIVB Hindustan Copper Limited, (~alcutta

SHltl P. CROUDHURI ( Alternate )

( Continu,d onpag, 10)

2

AMENDMENT NO. 1 MARCH 1996TO

IS 10170: 1982 SPECIFICATION FOR BYPRODUCTGYPSUM

( Page 3, clause 0.3 ) - Substitute CJS 1288 : 1982 Methods of test formineral gypsum and gypsumproducts ( second revision )' for 'IS: 1288 .. 1973Methods of test for mineral gypsumand gypsum products'.

(Page 3, clause 0.4) - Substitute 'IS 460 ( Part 1 ) : 1985·' for 'IS: 460(Part I) - 1978·).

( Page 3, [oo: ..note marked '.' ) - Substitute I( thud ,evi..sio« )' for C( SeC0It4

revis,,-,,)' at the end of text.

(Page 4, clause Z.I, line 3 ) - Substitute 'IS 1288 : 1982*' {or 'IS: 1288 .1973·' .

( Page 4, foot-notemarked '.» ) -- Add '( second revision)' at the end of text.

(Page 6, clause A-i.l) - Substitute '( see IS 266 : 1993* )' lor 'SeeIS: 266 - 1977·'.

( Page 6, foot-note marked' *' ) - Substitute '( third revision)' for 'c sC'cona

revU;on)' at the end of text.

( Page 6, clause A·l.8 ) - Substitute 'IS 265 : 1993t' for 'IS: 265 ­1976t'.

( Page 6, foot-note marked 't) ) - Substitute '( lourth revision )' for '( s«OItti

revision)' at tbe end of text.

(FAD 27 )

Printed at Dee Kay Printers, New Delhi-lloolS, India

AMENDMENT NO. 2 MAY 2012 TO

IS 10170 : 1982 SPECIFICATION FOR BYPRODUCT GYPSUM

[Page 4, clause 3.2(b)] — Substitute ‘Quantity of the material in the

package,’ for ‘Mass of the material in the package,’. (FAD 7)

Reprography Unit, BIS, New Delhi, India

IS : 10170 • 1982

Indian StandardSPECIFICATION FOR

BYPRODUCT GYPSUM

o. FOR E W 0 R D

0.1 This Indian Standard was adopted by the Indian StandardsInstitution on 31 May 1982, after the draft finalized by the Soil Amend­ments and Reclamation of Problem Soils Sectional Committee had beenapproved by the Agricultural and Food Products Division Council.

0.2 Byproduct gypsum is produced in the country in phosphoric acidplants following wet process technology. This byproduct gypsum likemineral gypsum is abo a major soil amendment for reclamation of alkalisoils.

0.3 The other Indian Standards on gypsum are:

IS : 1288-1973 Methods of test for mineral gypsum and gypsumproducts

IS : 1289-1960 Methods for sampling of mineral gypsum

IS : 1290·1973 Specification for mineral gypsum ( second revision ).

IS : 6046-1982 Specification for gypsum for agricultural use (first"vision ).

8.4 For particle size, the use of IS sieves conforming to IS : 460 ( Part I )­1978* is prescribed. Where IS sieves are not available, other standardsieves as judged from aperture size may be used.

0.5 For the purpose of deciding whether a particular requirement ofthis standard is complied with, the final value, observed 01" calculated.expressing the result of a test or analysis, shall be rounded off in accord­ance with IS : 2-1960f. The number of significant places retained inthe rounded off value should be the same as that of the specified valuein this standard.

·Specification fur test sieves: Part I Wire cloth test sieves ( s,cond "r';si.,. ).fRules for rounding off numerical values ( ,lUis.).

IS I 10170· 1982

r, SCOPE

1.1 This standard prescribes the requirements and methods of samplingand test for byproduct gypsum used as an amendment for alkali soils.

2. REQ,UJREMENTS

2.1 FIDeRe•• - All the material shall pass through 2 111m sieve but.10 percent of it should pass through 0'25 mm ( 60 mesh) sieve whentested by the method prescribed in 3 of IS : 1288·1973*.

2.2 The material shall also conform to the requirements given in Table) .

TABLE 1 REQ,UIREMENT FOR BYPRODUCT GYPSUM

SL Cn ",Tt.~('TEHIA'·I(" REQ l'lRJo'Mll:l\ 'r METHOJ) OF 1'F:t-'T, Rl·:F,.O

~o.,-._ -_. ____ A ________~

Appendix of this Appendix ofStandard IS : 6046-1982·

(1) (2) (3) 14) ~5)

i) Calcium sulphate dihydr- iO Aate, content, percent, bymass, .Alinon dry basis

ii) Sodium content as ( Na ), 0·75 npercent by mass, Ma»on dry basis

iii) Fluorine content, percent 1·0 Aby mass, Max on drybasis

iv) Free moisture content, 15 npercent by maa, Max

.Specification for gypsum for agricultural usc (fird reviju,n ).

3. PA.CKING AND MARKING

3.1 PaeklDI - The material shall be supplied in bulk or in package asagreed to between the purchaser and the supplier.

3.2 Marlda. - When supplied in packages, each package shall besecurely closed and marked indelibly with the following information:

a) Name of the material,b) Mass of the material in the package,

• Methods of test for mineral g).plum and IYP~um products (fir" "Disw" ).4

IS : 10170 • 1912

c) Minimum calcium sulphate dihydrate content,J) Particle size,e) Moisture content,f) ~Ianufacturcr'~name and re(..l)~niz~cI trade-mark, .iud

g) I.ot number.

3.2.1 \Vhcn supplit)d in hulk, a met.rllic or (Lll d l}\).:u d l.,hcl ofappropriate size, hearing the information require-d to t -c ~i\ vu uuder3.2 with suitable paint or ink xlrall conspir-uou-ly 1)(' di.,pLl\"t:d on thehulk carrier and also placed inside the consignment.

3.2.2 The product mayalso be marked with Standard Mark.

3,.3 The use of (be Standard Mark is governed by the.. provwion« of Bureau 01Indian Standards Act, 1986 and the Rules and Regulations made thereunder.The details of conditions under which tbe licence for tbe U~C of Standard Markmay be granted to manufacturers or producers may be obtamed front the Bureauof Indian Standards.

4. SAMPLING

4.1 Representative u-st samples of the material shall be dC&l\\JJ asgiven in 5 of 1S : 1289·1960·.

4.2 Number or Testa

4.2.1 Calcium sulphate dihyd,o(lte shall IJr~ rc-te.I on e~~h PI' theindividual samples,

4.2.2 Tests for remaining characteristics giveu ill 2 ,)1' the specificationshall be conducted on the composite sample,

4.3 Criteria for Conformity - The lot shall I.e declared as con­forming to the requirements of the specification if 4.3.1 aud 4.3.2 aresatisfied.

4.3.1 The expression ' ..¥ - 0'6 R' is greater th.ui or equal to theminimum limit prescribed in Table I of the specification for calciumsulphate dihydrate, where:

Mean ( g) -= ~Ull~.w~i..thc !~ ~!:~~~lts_~urnher of test result')

·~eth()ds fur s.1nlpliuK of mineral gypsum

IS I 10170· 1912

Range ( it. )=Uitlcrcn(c in the maximum and minimumof the test results.

4.3.2 .\11 lite tc~l result» on the composite sample meet the relevantrequirement given in 2 of the specification,

APPENDIX A[ Table I, Itenl ( iii) ]

DETERMINATION OF FLUORINE CONTENT

A-o.GENERAL

A-o.l rrltc deter ru ination oj Iluor inr- in J,~pr(Jdllt·t g>p~Uln involvesdecomposition of insoluble fluorine compounds, distillation withconcentrated sulphur ic acid and ~("paratiollof fluorine from the distillateby perchloric acid. The Houriru- ill the distillate is determined byspectrophotometric method u~ing Zu conium-Eriocln OIllC Cyanin-RLake,

A-I. REAGENTS

A-I.I SUlphuric Acid - Sit l~ : 2tih·I~'77*.

A-l.2 Sodium Hydroxide - 10 percent and :)0 percent solutionprepared in douhie distilled wute 1".

A-l.3 Perchloric Acid - 70 percent.

A-I.4 Silver Perchlorate - 17'3 pei cr-nt ~()Jl1tjon prr-parr-d in doubledistilled water,

A-l.5 ,-Nitropheaol ludie.tor - U'j percent solution prepared indouble distilled water,

A-I.6 Erlochrome Cyaaha-R - l)i~~oJ\ C 1·80 g of Eriochromc Cyanin­R in double distilled water and dilute to one litre.

A-I.? ZlrcoDyl Chloride Octahydrate - Dissolve 0·265 g of ZirconylChloride in 50 url double distilled water, Add 700 JIll concentratedhydrochloric ac id and dilute to one litre with double distilled water,

A-I.I CODceDtrated Hydrochloric Acid - See IS : 265-1976t.

·Spt"(.itk.ltiou fur ~ulvh\lrk '&(.;1(1 l Jtcond rei ision ).tSpef..:ification for hydrochlorh, acid ( ~'tD",d ,tl';,);O" ).

6

IS I 10170 - 1_

A-I.t Refereace SolatioD -.1 n11 of Eriochrome Cyanin-R (sf.eA-I.6) is added to 50 ml volumetric flask, 5 ml of solution prepared bydiluting 3 ml of concentrated hydrochloric acid ( see A-I.a ) to 5 ml with

• double distilled water is added to the volumetric flask and the volume ismade to 50 ml with double distilled water, The solution is used forsetting the reference point ( 100 percent transmittance ) of the spectro­photometer.

A-I.10 Standard FluoriDe Solation - Dissolve 2·211 g of sodiumfloride in double distilled water and make the volume to one litre in avolumetric flask. Pipette out 10 rnl of this solution into one litrevolumetric flask and make up the volume with double distilled water.This solution contains 0·01 mg of fluorine per rnillilitre.

A-2. APPARATUS

A-2.1 Spectrophotometer

A-2.2 DistlllatioD Apparatus - with three necked distillation flaskof 500 ml capacity.

A-2.3 Thermometer - of 0 to 200°C range,

A-2.~ Steam Geaerator - 2 litre capacity.

A-2.5 StealD CODdeasatioD Trap - 60 ml capacity.

A-2.6 Electric Heatlal Mantle - provided with thermostat and toaccommodate 500 ml distillation flask.

A·3. PREPARATION OF SAMPLE

A-3.1 10 grams of air dried byproduct gypsum sample is pulverized inmortar and pestle until the entire sample passes through 200 mesh sieve.The ground sample is oven dried at 100°C to a constant mass.

A-4. PROCEDURE

A-4.1 500 rng of the sample (see A-3.1 ) is transferred to the three-neckeddistillation flask. 50 ml concentrated sulphuric acid and 25 ml doubledistilled water are added. The distillation flask is placed in an electricheating mantle with thermostat. A thermometer (0 to 200·0) isinstalled in one of the necks of the distillation flask. The lower 2·5 emtip of the thermometer is immersed in the concentrated sulphuric acid.The steam distillation head is attached with a 500 ml calibrated beakerplaced UDder the condenser to collect the distillate. The heat ia appliedslowly to the distillation flask through the heating mantle. 'Vhen the

7

I. : 10170 - 1912

temperature reac hes 1[0("(:, steam i~ allowed to enter the' flask. Thetemperature is maintained at 165 -f: 2°C throughout the distillation,When approximately 400 ml distillate is collected then 10 ml of10 percent sodium hydroxide is added to it ann evaporated to neardryness on a hot plate. After evaporation of the distillate 23 ml ofdouble distilled water is added to dissolve the zalt re-idues.

A-4.2 Thr distillate obtained in operation ( sr A-f.1 ) i'i transferredquantitatively from the beaker to a titre... ner keel distillation flask with50 ml of 70 percent perchloric acid and 2!'") In) double disj illod water,One rnillilitre of 17'5 percent silver perchlorate sohu ion is ad c'r-d to theflask in order to precipitate the chlorides. The (:istillat ion flask isconnected to steam distillation head and a 500 In I beaker is placedbelow tbp condenser to collect the distillatr-, Om- drop of C)O percentsodium hydroxide and two drops of p-nitrophcnol indicator are addedin the beaker to 111ak(' the distillate alkaline. Heat il\ appl ir-d to thedistillation flask through an eler n ic heating mantle to raise thetemperature' to 132°(~. Stearn is introduced at this stage and thetemperature i, J aised to 135°C. The temperature is maintained at135 ± 2°C till approximately 400 ml distillnte is collected.

A-4.3 The distillate obtained in operation (Sf' A-4.2 ) is quantitativelytransferred 10 a volumetric flask and the volume is made to 500 rot withdouble distilled water,

A-4.4 Take 5 ml portion of the distillate ( seeA-4.3 ) in 50 ml volumetricflask and add 5 ml double distilled \...~ater and mix well. Add one dropof p-nitJophE'nol and then add 4 ~ hydrochloric acid dropwise till theyellow colour disappears. Add 5 ml of Eriochrome Cyanin-R ( set A-I.I )and:' ml of Zirconyl Chloride Octahydrate ( set A-I.7 ) and mix well,Make up the volume to the mark with double distilled water, Thecolour reaction is immediate and stable, and readings can be recordedimmediately or at any other desired time without significant change intransmittance, provided constant temperature is maintained.

A-f.5 Set the spectrophotometer at 527·5 mm ( range 525-530 mm ) for100 percent transmittance using the reference solution ( se« A-I.9 ) andrecord the absorbance/transmittance of the sample solution.

A-4.6 Prepare a standard curve for fluorine using standard fluorinesolution ( see A-I.IO). Standard fluorine solution may further be dilutedwith double distilled water and aliquots be selected in the range of 0·00 to1·40 ppm in terms of fluorine for the preparation of standard curve.

NOT)~ - A new curve should be prepared for each fresh batch of reagents specifiedin A-I.I and A-I.7.

8

IS : 10170 - 1982

A-4.7 Calculation

A-4.7.1 The fluorine value of the sample aliquot is read from thestandard curve ( see A-4.6 ) and is expressed in percentage taking intoaccount the total dilution factor.

APPENDIX B[ Table 1, Item ( iv ) ]

DETERMINATION OF FREE MOISTURE CONTENT

B-1. PREPARATION OF SAMPLE

B-l.1 Red uce gross sample to quantity sufficient for analysis or grindapproximately 225 g sample without previous sieving. Grind to passsieve with one mm circular opening. Grind as rapidly as possible toavoid loss or gain of moisture, Mix thoroughly and store in tightlystoppered bottles.

B-2. PROCEDURE

B-2.1 Weigh 2 g of prepared sample (see B-l.1 ) into a tared glassweighing dish. Dry sample for two hours ± 10 minutes at 50 ± I-5°Cunder vacuum of 48-53 em. Maintain vacuum by passing desiccatedair through chamber. Cool in desiccator and reweigh,

B·:J. CALCULATION

B-3.1 Free moisture content percent by mass = 100 ( .~ - B )

where

.~ = mass, in g, of the sample taken for test; andB -= mass, in g, of the material after drying,

~OTE - Absolute pressure of 23·28 em. temperature control within specified Jimi tilthroughout oven chamber is essential. In case facility for required vacuum i~ not,available, dry th,. sample for 2 hours ± 10 minutes at 70·C in an oven,

9

IS I 10170 • 1982

( CDntinu,d from !'Dle 2 )

kl,m6"sDa K. N. GOEJ~DR R. N. GUPT.\

DR G. S. Mt--UTYDR V. K. SAOLAJll-HK.-'J:

DB D. N. SUARl'tA

SHIH H. SANKAH.\ St DB .\l(O~l~Y

SHl~l Y. S. \"};U;\t \ I Alltrnat,)Bunl C. V. 1'ALUH

Repres",tingPyritE's, Phosphates & Chemicals Ltd. AmjhoroDepartment of Agriculture, Government of Uttar

Pradesh, LucknowCorornandel Fertilizers Limited, SccunderabadZuari Agro Chemicals Limited, GoaC. S. Azad University of Agriculture & Technology ~

KanpurMadras Fertilizers Limited, Manali, Madras

Directorate of Agriculture, Government of K~.ln.r­taka, Bangalorv

Andhra Prade-h Agricultural University, II~ dcrabad

10

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