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author's profile photo Former Member
Former Member

Primay,Pooled,Reserve samples

Hi ALL,

Whats the difference between Primary,Pooled and reserve samples...Plz explain me with example...

Thanks & Regards,

Ameya K.

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2 Answers

  • author's profile photo Former Member
    Former Member
    Posted on Nov 22, 2007 at 07:59 AM

    hi ameya,

    Primary samples (1st stage)

    Physical samples drawn directly from a material or batch that will be inspected or used to create pooled samples.

    ex. From lot A of 100 nos from drum no 1, you draw a sample of say 5 nos and inspect it.this sample of 5 is primary sample.

    Pooled samples (2nd stage)

    Physical samples to be created by mixing the contents of two or more primary samples from the same material or batch.

    Ex. Suppose from lot A of 100 nos from drum no 1, you draw a sample of say 5 nos and from drum no 2, you draw a sample of say 5 nos and mix these two samples and inspect it.this sample of 10 is pooled sample.

    Reserve samples

    Primary physical samples drawn from a material or batch reserved for future inspection.

    Ex. Suppose you inspect some material now and keep some sample from the same lot for future inspection say after 6 months or 1 yr, this sample is called as reserve sample.

    hope it clears your doubt.

    reward the point and close the thread.

    if doubt is clear,reward th epoints and close the thread else get back with your doubt.

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  • Posted on Dec 05, 2007 at 12:12 PM

    This thread has been answered

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