CORE pH Testing Procedure
(ISO 3071 & AATCC81)
Step: 1- Precaution /Condition Taking before testing
All Receiving samples are required minimum 4 hours condition with temperature @ 20±2 °C & humidity 65±2 °C
FOR ISO TEST PROCEDURE
Step: 2- Take accurately 2.0±0.1gms of fabric in three separate position.
Step: 3- Cut the sample and make it in small pieces . The size should be not exceeding from 0.5mm
Step:4-Measure the Distilled water ph and note down . And follow the customer protocol . If customer is recomondet to use KCL then add 0.1N KCL and Prepair the solution
Step: 5-Then immerse the specimen in to with 100ml solution to the conical flask . And allow it to roteting with rotary shaker for 2 hour with 30rpm.
FOR AATCC TEST PROCEDURE
Step:6-Use 10±0.1g of specimen of the material to be tested.and cut the specimen into small pieces
Step:7-Boil 250mL distilled water at a moderate rate for 10min. Immerse the specimen , cover the beaker with a watchglass,And boil for additional 10min.
Step:8-Allow the covered beaker and keep it for cooling in room temperature. Extract the solution to another beaker and allow to measure
MEASUREMENT
Step :9- Before measuring the solution calibrate the pH meter with Buffer solution 4.0,7.0 and 9.18
Step:10-Then thoroughly wash the pH rod And allow to measure in three different extracted solution .Discard 1st reading and consider average reading 2nd and 3rd solution
pH=2nd +3rd
Step:9-For AATCC method Directly measure the extract solution and note down
Sarawar Alam
(ISO 3071 & AATCC81)
Step: 1- Precaution /Condition Taking before testing
All Receiving samples are required minimum 4 hours condition with temperature @ 20±2 °C & humidity 65±2 °C
FOR ISO TEST PROCEDURE
Step: 2- Take accurately 2.0±0.1gms of fabric in three separate position.
Step: 3- Cut the sample and make it in small pieces . The size should be not exceeding from 0.5mm
Step:4-Measure the Distilled water ph and note down . And follow the customer protocol . If customer is recomondet to use KCL then add 0.1N KCL and Prepair the solution
Step: 5-Then immerse the specimen in to with 100ml solution to the conical flask . And allow it to roteting with rotary shaker for 2 hour with 30rpm.
FOR AATCC TEST PROCEDURE
Step:6-Use 10±0.1g of specimen of the material to be tested.and cut the specimen into small pieces
Step:7-Boil 250mL distilled water at a moderate rate for 10min. Immerse the specimen , cover the beaker with a watchglass,And boil for additional 10min.
Step:8-Allow the covered beaker and keep it for cooling in room temperature. Extract the solution to another beaker and allow to measure
MEASUREMENT
Step :9- Before measuring the solution calibrate the pH meter with Buffer solution 4.0,7.0 and 9.18
Step:10-Then thoroughly wash the pH rod And allow to measure in three different extracted solution .Discard 1st reading and consider average reading 2nd and 3rd solution
pH=2nd +3rd
Step:9-For AATCC method Directly measure the extract solution and note down
Sarawar Alam
Tags:
Textile