Sodium hydroxide (NaOH)

Procedure:-(1)Take 1-2gm sample in a titration flask and dilute upto 50ml.

(ii)Add 2-3 drops of 1% phenolphthalein indicator.

(iii) Fill the burette with 1N HCl solution.

(IV) Titrate the said solution against 0.1N HCl solution untill color disappear.

(v) Note the reading and calculate the strength.

Calculation:-

% Purity of Caustic: - B.R X 0.1X 0.04 X100 = Sample’s Weight

Sodium bicarbonate (NaHCO3)

Procedure:-

(i) Take 1-2gm sample and dissolve in 50ml water

(ii) Add 4-5 drops of 1%Methyl orange indicator

(iii) Fill the burette with 1N HCl solution

(iv) Titrate the sample against 1N HCl until the color become red

(v) Note the reading and calculate the strength

Calculation:-

% Purity = B.R x0.1x0.084x100 Sample’s weight

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Oxalic Acid (COOH)2

Procedure:-

i. take 1-2gm sample of oxalic acid and dissolve in 50 ml water

ii. (ii) Add 2-3 drops Phenolphthalein indicator.

iii. Fill the burette with 0.1N NaOH solution.

iv. Titrate the sample against 0.1N NaOH solution up to pink color.

v. Note the reading and calculate the strength.

Calculation% Purity = B.R x0.1x0.045x100

Sample’s weight

Soda ash (Na2CO3)

Procedure:-

i) Take 0.5-1gm sample in flask and dissolve in 100 ml water

(ii) Add few drops of 1% Methyl orange indicator

(iii) Fill the burette with 0.1N HCl solution

(iv) Titrate the sample against 1N HCl solutions until the color become red

(v) Note the reading and calculate the strength

Calculation

% Purity = B.R x 1x0.106x100 Sample’s weight

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Ammonia (NH3)

(i) Take 10-20 ml Water In Flask and Add 1-2 Grams

Of Ammonia then dilute up to 50 ml

(ii) Add few drops of methyl orange indicator

(iii)Fill the burette with 1 N HCl solution

(iv)Titrate the sample with 1 N HCl up to the color change from

Orange to red.

(v) Note the reading and calculate the strength

Calculation% Purity = B.R x 0.1x0.034x100

Sample’s weight

Hydrogen Peroxide(H2O2)

Procedure;-

(i) Take 0.1-0.5gms sample and dilute to 20ml with Water in flask (ii) Add 20ml of 20% sulphuric acid and heat unto 60-70 C

(iii) Fill the burette with 1N KMnO4 solution Titrate the sample solution against 1N KMnO4 solution up to light Pink color of sample solution (v) Note reading and calculate the strength

Calculation% Purity = B.Rx1x0.017x100 Sample’s weight

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Sodium hydro sulphite (Na2S2O4.2H2O)

Procedure:-

(i)Take 10gms Potassium Iodide and 6gms Potassium Iodate in conical flask in some water and add 2gms Sodium hydrosulphite and make the volume up to 700ml

(ii) Add 300ml of 0.1N Sodium thiosulphate to the above said solution and make the volume up to 1 Liter.

(iii) Take 50ml of the above solution and add few drops of 5% starch solution and titrate it against 0.1N Iodine solution up to color become brown.

(iv) Note the reading and calculate the strength.

Calculation%Purity = B.Rx0.1x 20-300x0.087x100

Sample’s weight

Citric Acid

Procedure:- (i)Take 1-2gms sample in flask and dissolve in 50ml water .

(ii)Add 2-3 drops of 1% solution Phenolphthalein indicator

(iii) Fill the burette with 0.1N NaOH solution

(iv) Titrate the sample against 0.1N NaOH solution upto pink color

(v) Note the reading and calculate the strength

Calculation

% Purity = B.R x0.1x0.07x100Sample’s Weight

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Acetic Acid CH3 COOH

Procedure.

(i) Take 1-2 grams simple in a flask and dilute with 50 ml water.(ii) Add 2-3 drops of 1% phenolphthalein indicator.(iii) Fill the burette with 0.1 N NaOH solutions. (iv) Titrate the sample with O.1 N NaOH solution up to pink color (v) Note the reading + calculate the strength calculate Calculation

% purity of CH3 COOH = B.R x 0.1 x 0.06 x 100 = Sample weight

H2SO4 Sulfuric acid

Procedure

(1) Take 0.5-1 grams simple in a flask and dilute with 50 ml water.(2) Add 2-3 drops of 1% phenolphthalein indicator.(3) Fill the burette with 0.1 NaOH solutions. (4) Titrate the sample with O.1 N NaOH solution until a pink appear. (5) Note the reading + calculate the strength calculate

% Purity of H2SO4= B.R x 0.1 x 0.049 x 100 = Sample weight

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Formic Acid (HCOOH)

Procedure.

(1) Take 1-2 grams of sample add dilute up to 50 ml with water.

(2) Add 2-3 drops of 1% phenolphthalein indicator.

(3) Fill the burette with 1 N NaOH solution.

(4) Titrate the sample against O.1 N NaOH solution until the pink color appear.

(5) Note the reading + calculate the strength calculate

% purity of HCOOH = B.R x 1 x 0.046 x 100 = Sample weight

Desizer.

Procedure

(1) 4 g/l desizer2 g/l detergent

(2) Take 5 gms Greigh fabric and 250 ml of the above solution desizer the sample at 70 co for 1 hour.

(3) After desizing wash the fabric with cool water then with hot water again cool wash.

(4) Dry the fabric with iron.(5) introduce 1-2 drops iodine solution (starch indicator) on fabric stay for 5-10

sec and checked with Tegwa scale and determine the extent of size.

Wetting agent.

Procedure.

(1) Take 2 g/l wetting agent of sample + standard in two beakers mark the beaker for standard + batch (sample)

(2) Cut a small piece of greigh fabrics of 1” inch determine in a circular shape.

(3) Place the fabric pieces in two different beaker not their wetting + sinking shape.

(4) Compare the result of both specimen with each other.

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Stability in caustic of wetting agent.

(1) Take 70 g/l caustic 48Be0 in two beaker mark the beaker for standard + batch.(2) Add 2 g/l wetting agent of standard + batch in each mentioned beaker.(3) Heat at 60-70 co and allow standing for 20-30 min.(4) Observe the precipitation or aggregative in each beaker.(5) Compare the result of both specimen with each others and report.

Sequestering Agent.

The method is intended on the bases of comparative Analysis to determine the descending extent in hardness of water.

Responsibility:Chemical Testing Section.

(1) Determine the hardness of untreated water and then(2) Add 2 g/l sequestering agent and again determine its hardness.(3) Note the difference b/w untreated water and treated water with

sequestering agent.

Stabilizer.

The method is intended on the bases of comparative Analysis to determine the stability of hydrogen peroxide in bleaching solution.

Procedure :

(1) prepare a bleaching solution of composition

50 % H2O2 = 24 g/lNaOH 4bbi = 8 g/lStabilizer (sample) = 5 g/lDetergent = 1 g/l

(2) Take 1 ml of the above Solution and 20 ml of 20 % H2SO4 titrate it against 0.1 N KMnO4 solution,

When the color reach to pink note the reading.(3) Take 5 gms Greigh fabric and 250 ml of above bleaching solution, bleach the fabric at 80 co for 1 hour in exhaust and check the Berger whiteness of fabric.

(4) Take 1 ml of the treated solution + titrate it against 0.1 N KMnO4 when color

reach to pink note the reading.

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(5) Take 1 ml of stock solution after 2 hours and titrate it against 0.1 N KMnO4 when color reach to pink note the reading.

(6) Calculate the quantity of H2O2

Calculate = for 50 % H2O2

B.R X 3.4

Water Analysis.

Procedure:(1) pH

Wash a 250 ml beaker with water whose ph is to be determine take 250 ml of sample water and determine its pH by pH indicator strip on pH meter.

(2) Hardness

(1) Take 20-25 ml of sample water in a flask (2) Add 3-4 drops buffer ammonium solution.(3) Add 2-3 drops Erichrome Black T indicator (4) Titrate it against 0.1 EDTA solution (5) When colors reach to blue note the reading + calculate hardness.

Calculation:-

B.R ___x ___1000 = ppmVolume of sample

Chloric Acid (HCl)

Procedure:-

(i)Take 1-2gms sample in flask and dissolve in 50ml water.

(ii)Add 2-3 drops of 1% solution Phenolphthalein indicator

(iii) Fill the burette with 0.1N NaOH solution

(iv) Titrate the sample against 0.1N NaOH solution upto pink color

(vi) Note the reading and calculate the strength

Calculation % Purity = B.Rx0.1x 0.036x100

Sample’s Weight

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Nitric Acid (HNO3)Procedure: - (i) Take 1-2gms sample in flask and dilute unto 50ml water .

(ii)Add 2-3 drops of 1% solution Phenolphthalein indicator

(iii) Fill the burette with 0.1N NaOH solution

(iv) Titrate the sample against 0.1N NaOH solution upto pink color

(v) Note the reading and calculate the strength

Calculation % Purity = B.Rx0.1x0.063x100

Sample’s Weight

Sulphuric Acid (H2SO4)

Procedure: - (i) Take 0.5-1 gms sample in flask and dilute upto 50ml water.

(ii)Add 2-3 drops of 1% solution Phenolphthalein indicator

(iii) Fill the burette with 0.1N NaOH solution

(iv) Titrate the sample against 0.1N NaOH solution upto pink color

(v) Note the reading and calculate the strength

Calculation % Purity = B.Rx0.1x0.049x100

Sample’s Weight

Sodium hypochlorite (NaOCl)

Procedure: - (i) Take 2 gms sample in flask and dilute upto 50ml with distilled water

(ii) Add 10ml of 10% Potassium Iodide solution and 10ml of 10% H2SO4 Solution

(iii) Titrate it against 0.1N Sodium thiosulphate solution

(iv) When color is discharged note the reading and calculate strength

Calculation

% Purity = B.R x 0.1x0.0355x100 Sample’s Weight

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Determination of solid contents

Procedure

(i)Take two Petri dishes each for sample and standard, wash and dry them

(ii)Determine the weight empty Petri dish by an electronic balance

(iii)Take 1gm of both specimens in separate dish and place in Oven at 110C

Upto complete dehydration

(iv) Weight Petri dish with solid contents

(v) Exclude the weight of Petri dish and calculate solid contents

Calculation

W1= total weight of sample W2= weight of solid contents

W1-W2 x100 =% Weight of liquid W1

100-% Weight of liquid = % Solid contents

Checking of Binder

Procedure:-

(i) Check the solid contents of both samples

(ii) Prepare a paste and determine its viscosity then add

15% Binder and check the drop age in viscosity

(iii) Compare the results old and new sample.

Checking of ThickenerProcedure:-

(i) Prepare a paste of following composition of both sample and standard

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Thickener = 1.2 %

Ammonia = 0.50 %

Water = 83.30% Stirrer unto the formation of homogenous paste.

(ii) Determine the viscosity of above paste.

(iii) Then add 15% binder to the paste and stirrer it, again check its viscosity and note the drop age viscosity.

(iv) Compare the results old and new sample.

Checking of Silicone finish

The method is based on comparative analysis to evaluate silicon finish chemical and determine batch to batch differences.

Procedure:-(i) Check the of both sample and standard (ii) Check the solid contents of both sample and standard Ref doc#(iii) Prepare 10g/l solution for each(iv) Pad unfinished fabric with the above said solutions(v) Check the hand feeling effect, compare the results.

Checking of Soft finish

-The method is based on comparative analysis to evaluate soft finish chemical and determine batch to batch differences.

Procedure:-(i) Check the of both sample and standard (ii) Check the solid contents of both sample and standard Ref doc#

(iii) Prepare 10g/l solution for each

(iv) Pad unfinished fabric with the above said solutions

(v) Check the hand feeling effect, compare the results.

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Checking of Hard finish

The method is based on comparative analysis to evaluate hard finish chemical and determine batch to batch differences.Procedure:-(i) Check the of both sample and standard (ii) Check the solid contents of both sample and standard.

(iii) Prepare 20g/l solution for each

(iv) Pad unfinished fabric with the above said solutions

(v) Check the hand feeling effect, compare the results.

Checking of Neutral Salt,

The Method is based on physical as well as on comparative analysis to check batch to batch differences.

Procedure:-

1. pH Prepare 10%solution of both sample and standard and check their PH with pH paper indicator of pH meter

2. Solubility. (i) Take 100gms of each sample and standard in different beaker and dissolve in per liter of water with slow stirring at room temperature. (ii) Note the color of solution and residue in solution.

Checking of Urea

Scope/Objective: - The method is used an physical as well as on comparative analysis to check batch to batch differences and enable their acceptance.Procedure:-

1- pH Checking (i) Prepare 10% solution of both sample and standard and check its

ph with ph paper indicator or ph meter.2- Solubility :-

(i) Take 50-100gms of both sample and standard and dissolve per liter in separate beaker with slowly stirring at room temp.

(ii) Note the color of solution and residence in solution.3- Compare the results old and new sample.

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Checking of dispersing agent.

The method is based on comparative analysis to determine the dispensability of a dispersing agent and also determine batch to batch differences...

1- pHCheck the ph of both sample and standard by ph paper indicator or ph meter.

2- Dispensability(i) Take two cylinders of volume /liter and fill with one liter of water

each.(ii) Then add 2g/l of dispersing agent.(iii) Add 1gm of L. Yellow of vat or disperse dyes and add in both

cylinders at same time.(iv) Note the initial time and final time when dispersion is completed.(v) Also check the residue in both cylinders.(vi) Compare the results old and new sample.

Analysis of detergent.

The method is intended to evaluate a detergent as well as to determine batch to batch differences.Procedure:-

1- PH Determination(i) Prepared a 10% solution of detergent and check its pH with pH

meter or pH paper indicator.(ii) Take 500ml of the said solution in cylinder of volume 1 liter.(iii) Shake the solution gently for 20 times.(iv) Note the volume of foam

2- Caustic Stability :-(i) Prepare a solution of 2g/l detergent 100g/l caustic 48 Beo in a flask.(ii) Heat the said solution and raise its temp. 80-90oC(iii) Note the formation of precipitation(iv) Compare the results old and new sample.

Preparation of regents

1- Preparation of 1N and 0.1N NaOH Solution(i) Dissolve 40gm NaOH flaks (100%) Per liter to prepare 1N

solution(ii) Dissolve 4gms NaOH (37%) per liter to prepare 0.1N solution

2- Preparation of 1N and 0.1N HCl solution(i) Take 83.0 ml HCl (37%) in liter to prepare 1N solution(ii) Take 8.3 ml HCl (37%) in liter to prepare 0.1N solution(iii)

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3- Preparation of 1N and 0.1N KMnO4 and solution(i) For 1N solution take 31.6gms KMnO4 and dissolve per liter(ii) For 0.1N solution take 3.16gms KMnO4 and dissolve per liter

4- Preparation of 1N and 0.1N EDTA solution(i) For 1N EDTA solution take 37.2gms and dissolve per liter(ii) For 0.1N EDTA solution take 3.72gms of EDTA and dissolve

per liter.5- Preparation of 1% Phenolphthalein indicator. Take 1gms phenolphthalein indicator dissolves it in 50ml of water then adds 50ml of ethanol to make the volume up to 100ml.6- Preparation of 1% Methyl orange indicator Take 1gm Methyl orange indicator and dissolve it in 50-60ml water and then make the volume up to 100ml with addition of water.7- Preparation of 0.1N Iodine solution Take 18-20gms Potassium Iodide (KI) in 400-500ml Water and dissolve it then add 12.69gm Iodine Crystal and dissolve it and make the volume up to 1 liter.8- Preparation of 0.1N Sodium thiosulphate solution. Take 24.82gms Na2S2O3 and dissolve it per liter.9-prepration Of 1% Solution of starch indicator

Take 1gm of starch indicator and dissolve it in 50-60 ml water and then make the volume up to 100ml

10- Preparation of Iodine solution for starch indication Take 10gms Potassium Iodide (KI) in 500ml water and then add

0.65gm Iodine crystals and dissolve it completely. Then add

200ml ethanol and make the volume up to Liter with water.

11- Preparation of 70% and 20% (volume/ volume) solution of H2SO4.

(i) FOR 70%:-Take 70ml of concentrated sulphuric acid in a beaker and add 30ml of water slowly.

(ii) FOR 20%:- Take 20ml of concentrated sulphuric acid in a beaker and then add 80ml water slowly.

12- Preparation of x% (weight/ volume) Solution

Take x grams of the substance whose solution is to be prepared dissolve it in 50ml to 60ml of water then make the volume upto 100ml.

13- Preparation of Capillary Solution

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Take 15gms Cibacron Turquoise PGR and dissolve in some water and then make the volume up to 1.0 Liter.

14- preparation of 1N and 0.1N Potassium Iodide solution

(i) For 1N Potassium Iodide solutionTake 166gms of Potassium Iodide and dissolve per Liter.

(ii) For 0.1N Potassium Iodide solutionTake 16.6gmsPOtassium Iodide and dissolve per Liter.

Work instruction for dyeing with disp/reactive dyes in one bath

Scope/Objective: The method is intended to dye the blended fabrics with disperse/reactive and to enable the recipe before going in production.

Responsibility: Color matching section

Procedure

(i) Take x g/l Disp dyes Y g/l Reactive dyes 40g/l 2% Sodium Alginate 6-10g/l Sodium bicarbonates 50-80g/l Urea 2 g/l Wetting Agent 2 g/l Dispersing Agent

(ii) Pad the sample at 70% pickup

(iii) Dry the sample in I.R box

(iv) Cure at 190°C for 1:30 minutes.

(v) Wash the sample with hot water consist of 2g/l detergent, again wash with cold water.

(vi) Dry the sample with iron.

Work instruction for dyeing with Disperse/Vat dyes in one bath

Scope/objective: The method is intended to dye the blended fabrics with disperse/Vat dye and to enable the recipe before going in

production.

Responsibility: Color matching section

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Procedure (i) Take x g/l Dyestuff ( Disp and Vat) 10g/l Ant migrating Agent 2 g/l Dispersing Agent 1 g/l Wetting Agent

(ii) Pad the sample at 70% pickup.(iii) Dry the sample in I.R box.(iv) Cure at 200-210°C for 1 minutes.

Developing: For developing, oxidation and washing refer to method for dyeing with Vat dyes.

Work instruction for dyeing with Disperse/Vat dyes in two bath

Scope/objective: The method is intended to dye the blended fabrics with disperse/Vat dye and to enable the recipe before going in production.

Responsibility: Color matching section

Procedure (1) Dyeing with Disp dyesRef doc#

(2) Dyeing with Vat dyes Ref doc#

Work instruction for dyeing with Sulphur dyes

Scope/objective: The method is intended to dye the fabrics with sulphur dyes and to enable the recipe before going in production .

Responsibility: Color matching section

Procedure:- (i) Take X gms Fabrics

Y% Sulphur w.r.t The weight of fabrics

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1.5(y%) Sodium sulphide

1.0% Common Salt

1.0% Soda ash

Liquor Ratio = 1:10

(ii) Dissolve auxiliaries in water and then dissolve Sulphur Dyes

(iii) Dye the fabric at 80C for 1hr in Rota Dyer

(iv) Wash the fabric with cool water and oxidize for 5—10min-

in oxidation solution = H2O2=3gm/l

Acetic acid =5gm/l (v) Wash cool water then with hot water , consist of 2gm/l

Detergent

(vi) Again cool wash and dry the sample with Iron.

Work instruction for dyeing with pigment dyes

Scope/objective: The method is intended to dye the fabrics with Pigment dyes and to enable the recipe before going in production.

Responsibility: Color matching section

Procedure:- (i) Take X gm/l Pigment dyes

20-40gm/l Binder10gm/l Size CB

1gm/l Antifoaming Agent

(ii) Pad the sample at 65-70% Pick up

(iii) Dry in I.R box and cure at160 C for 1.30 min

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Determination of GSM

Procedure:-

(i) Take a sample and place on cutting board

(ii) Place the cutter on the top of the specimen and release the safety catch.

(iii) Exert slight pressure on the cutter knob and rotate clock wise to obtain a circular piece of approx-113mm in diameter(iv) Weight the sample on electronic balance and calculate G.S.M

Calculation-Weight of circular cut sample x100= G.S.M

Determination of blend ratio for P/C fabrics The method is based on the quality of fabrics and ratio of their blends Procedure:- (i) Cut a piece of 6x6cm of sample fabric and weigh them on

An electronic balance

(ii) Place the sample in 70% H2SO4 solution for 5-10min at a temperature

below than 65C to dissolve cotton

(iii) Wash the sample with cool water

(iv) Dry the sample and weigh it again

Calculation% Weight of cotton= W1-W2 x100

W1

%weight of polyester=100- % weight of cotton

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Determination of pH

Procedure:- (i) Take 10gm fabrics and cut into small pieces

(ii) Take 250ml distilled water in flask and place the pieces in flask ,

Close the flask with tape or cork in order that the excess of pressur release

(iii) Heat for 10min at 90-100C

(iv) Pour the solution in beaker and allow to cool at about room temp

(v) Check the pH with pH meter

Color Fastness To Rubbing This test method is designed to determine the amount of colour

transferred to other surface from the surface of dyed or printed materials by rubbing . the method is carried on to determine rubbing fastness.

Procedure

(i) Take a rubbing cloth of size 5x5cm and a specimen of size 15x5cm

(ii) For wet rubbing wet the rubbing cloth and squeeze it in blothing paper to maintain a pickup of 60-65 % .

(iii) Place the test specimen on the base of crocking meter with its long dimension in the direction of rubbing .

(iv) Place specimen holder over specimen to prevent slippage.(v) Place a rubbing cloth square size in rubbing finger cover it with a

spiral wire to prevent its slippage (vi) Lower the cover rubbing finger on the test specimen (vii) Turns the meter handle colour wise to slide the cover finger back

front complete 10 turns per 10 second .(viii) Remove the rubbing cloth from finger dry with air and remove

the extraneous fiber material by slightly pressing with sticky type .

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(ix) Cheeked with grey scale for staining.

Dimension stability This test method is intended to determine the dimensional change.

Procedure

(I) Take a test specimen of 60cm in length.(II) Make three-bench mark in weft as well as in warp side.(III) The length of benchmark should be 50cm each benchmark

should be at a distance of 5cm from edge and 12cm apart from each other.

(IV) Take 2g/l detergent.(V) Place the sample in washing machine and wash for 30min at

60C and at liquor: ratio1:15 (VI) After 30min take out sample and dry it in tumble dryer.(VII) After drying condition it than measure the bench mark and

calculate the result.

Calculation Average difference x 2 = % dimensional change. Determination Of width This test method is intended to determine the width of fabric which is the distance from selvage to selvage (weft threads).

Procedure

(i) Place the fabric plain and smooth to remove any slope.(ii) Measure the distance from edge to edge (Selvage) in weft side

With measurement tape or Scale (iii) Note the initial and final reading in inches and determine the width

Width in inches = final reading _ initial reading

Width in cm = width in inches x 2.54Color fastness to light

The method is designed to determine the fastness of color

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Procedure :-(i) Cut a sample of 3-4cm of fabric whose fastness is to be determine (ii) Cover the sample from side and expose the center of about 1cm(iii) Fastened the sample in card and hang in light fastness instrument

In order that the exposed portion of sample come in forth to light source.

(iv) Note the initial time on time detector(v) After completion of 72hrs remove the sample from card and check

the result with scale for change in shade

Water Repellant Test (Spray Tester)

Procedure: Fabric sample (18cm*18cm) adjust on the metal hoop of spray tester and then 250ml distilled water of temp.27 0c take in the funnel of spray tester and allow to spray on the fabric sample . Spray time must be between 25-30 seconds and then move up the metal hoop at 180-degree angle and repeat the same process. After completion of the process assess the rating with spray rating scale.

COLOR FASTNESS TO WATER TEST (ISO-1O5-EO1)

1- Water 50ml in 1 gm2- Time 30 kg3- Temp. room temp.5- Fabric sample and adjacent fabric sample warp 10mm * Weft4mm

Procedure: Thoroughly wet out the both composite sample in the water in a separate container at the room temp. for 30 mints. Then lay out the composite sample smoothly between the two acrylic resin plates in the prispirometer under a pressure of 12.5 Kpa or 5 kg weight and place the perspirometer in the oven at temp. 37 0c for 4 hrs and then remove the sample from the acrylic plates then air dry or dry at 60 0c. After drying the sample assess the change in color and staining with help of grey scale.

COLOR FASTNESS TO PERSPIRATION (ISO-1O5-EO1)

Alkaline

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Histadine Monohydrochloride Monohydrate: 0.5 g/lSodium Chloride: 5 g/lDisodium Hydrogen Orthophosphate Dodecahydrate: 5 g/lDisodium Hydrogen Orthophosphate Dihydrate: 2.5 g/lPH maintain with NaOH 1N solution: 8.0

Acid

Histadine Monohydrochloride Monohydrate: 0.5 g/lSodium Chloride: 5 g/lDisodium Hydrogen Orthophosphate Dihydrate: 2.2 g/lPH maintain with NaOH 1N solution: 5.5

Procedure:

Thoroughly wet out the both composite samples of alkaline and acid in the water in a separate container at the room temp. for 30 mints. Then lay out the composite samples smoothly between the two acrylic resin plates in the Perspirometer under a pressure of 12.5 KPa or 5 kg weight and place the Perspirometer in the oven at temp. 37 0c for 4 hrs and then remove the sample from the acrylic plates then air dry or dry at 60 0c .After drying the samples assess the change in color and staining with help of grey scale.

DRY CLEANING TEST (ISO-1O5-DO1)

Perchloroethalene 200ml neutralized with sodium carbonate in the HCL form.Fabric Sample 4mm * 10mm12 steel discs of 30mm*3mm in the circle shape each discs must be 20gm weight.Twill cotton cloth (12cm * 12cm) of GSM 270 +70 g/m²

Procedure:Prepare a bag undued twill cotton cloth with inside dimensions of 10cm * 10cm by sewing together squares of this cloth around three sides place in the bag fabric sample and 12 steel discs and then close the bag from 4 sides and then place the bag in the washtec pot and add 200ml perchloroethalene at 30 Temp. for 30 mints. Then remove the sample and place it absorbent paper or cloth and hanging it in air at temp. 60 and treated perchloroethalene solvent filter and then assess the shade change and staining with grey scale.

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