Background

Quality

Process Description Characteristics Methods Reaction Plan
Process / Product Characteristics Specification Measurement Technique Sample Size & Frequency Monitoring & Control Method
Raw Material Selection

Impurity




Whiteness (Brightness)





Chemical
Specifications

Impurity  Free required



As Per our Requirement   / PO




As Per Customer
Requirement or Product Data Sheet

Manual Sorting 




Whiteness Tester / Comparison Method



Chemical
Analysis (Lab testing)

As Per Standards



As Per Standards







As Per Set Standards

Standard Sample



Data Comparison & Trend Analysis





Data Comparison & Trend Analysis

Accepting the Raw Material from the mines , only if impurity level is less than acceptable limits.


Accepting the Mineral only if Whiteness is equal to or more than the standard sample or as per the purchase order requirement.






Accept the Material only if Chemistry is as per requirement. follow decision rule for reconfirmation.If failure is confirmed, reject the shipment or accept for sub standard quality under concession.
Crushing Impurity




Size of Material

No Impurity Required



Standard Sample Size

Manual / Visual




Manual / Visual

100%


As per set standards.

Sorting / Segregate



Sorting/ Segregate
Each lot of Material is visually inspected for impurities / lab testing at factory. Over sized material re-crushed & high impurity rejected.
Mixing Proportion



Homogeneous
As Per Requirement


Homogenous
Mixing
Std Size Container


Visual
100%



100%
Sorting / Segregate


Proper Mixing

Accepting only if mixing is in required proportion or else corrections made. 

Grinding

Particle Size



Whiteness




Colour
Uniformity




Chemical Specification  

As per Customer Requirement


or Product Data Sheet
Sieve / Particle Size Analyzer



Whiteness Tester




Comparison with Std Sample




Chemical Analysis
As per set standards



As per set standards




One sample per 10 Bag




One Sample Per
Batch
Do trend Analysis
Accept the product only if particle size is equal to or less than required.



Accepting the powder only if Whiteness is equal to standard or more than required one.   




Accept the product only if colour is matching with the standard sample.


Accepting the powder only if Chemical specifications are as per requirement. Follow decision rule for reconfirmation.
Bag Filling Weight 25 Kg / 50 Kg Standard or As Per Customer Requirement Weighing by Weighing Machine 100% Monitor the weight of every bag by electronic weighing machines.
Accepting the bags only if weight is equal to standard bag weight or slightly higher than the required one.
In case of less weight, entire lot should go for correction & re-packing.
Storage / Warehousing

Cover / Stitching of Bags





Grade-Wise Stacking

All bags must be Covered and Stitched. 


Grade-wise Stacking of all the bags
Visual





Visual
100% Stacks





100% Stacks
Contamina- tion with foreign particles and   moisture 
Accepting the Mineral only if total bags are stitched, covered and protected from moisture and contamination. 


Accepting the Mineral only if there is no contamination due to stack mixing, moisture or contamination in the bags, reject the entire lot.