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Science Forum Index » Chemistry Forum » Need clarification on terms in chemical industry...
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 Posted: Wed Jun 18, 2008 8:26 am |
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Guest
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I am new to the chemical industry and am struggling with understanding
the difference between a few basic terms - in particular, the precise
difference between a Certificate of Analysis, a Specification Sheet
and a Product Information Sheet.
Can someone please clarify how these three documents differ from each
other? Both in terms of intent as well as in terms of the information
that goes on each sheet.
Thanks,
JB |
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| Posted: Wed Jun 18, 2008 12:48 pm |
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Guest
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On Jun 18, 11:26 am, mrsethbull... at (no spam) gmail.com wrote:
Quote: I am new to the chemical industry and am struggling with understanding
the difference between a few basic terms - in particular, the precise
difference between a Certificate of Analysis, a Specification Sheet
and a Product Information Sheet.
Can someone please clarify how these three documents differ from each
other? Both in terms of intent as well as in terms of the information
that goes on each sheet.
Thanks,
JB
When in doubt ask your supervisor!
M |
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| number6... |
| Posted: Wed Jun 18, 2008 1:16 pm |
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Guest
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On Jun 18, 1:26 pm, mrsethbull... at (no spam) gmail.com wrote:
Quote: I am new to the chemical industry and am struggling with understanding
the difference between a few basic terms - in particular, the precise
difference between a Certificate of Analysis, a Specification Sheet
and a Product Information Sheet.
Can someone please clarify how these three documents differ from each
other? Both in terms of intent as well as in terms of the information
that goes on each sheet.
Every company have different nuances to some of these ...
A Certificate of Analysis are the results obtained from various
parameters of interest for that product ....
A Specification sheet lists the maximum levels for impurities and the
range for the assays of the constituents ... It may be product or
customer specific ...
A Product Information Sheet is a description of the product and
possible uses usually prepared by advertising or marketting and
espouses how great the product is whether it is or not ... |
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| number6... |
| Posted: Wed Jun 18, 2008 1:17 pm |
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Guest
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On Jun 18, 5:48 pm, mrdarr... at (no spam) gmail.com wrote:
Quote: On Jun 18, 11:26 am, mrsethbull... at (no spam) gmail.com wrote:
I am new to the chemical industry and am struggling with understanding
the difference between a few basic terms - in particular, the precise
difference between a Certificate of Analysis, a Specification Sheet
and a Product Information Sheet.
Can someone please clarify how these three documents differ from each
other? Both in terms of intent as well as in terms of the information
that goes on each sheet.
Thanks,
JB
When in doubt ask your supervisor!
M
His supervisor is a chemistry teacher I believe who gave out this
assignment ... |
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| number6... |
| Posted: Wed Jun 18, 2008 2:25 pm |
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Guest
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On Jun 18, 6:24 pm, Mark Thorson <nos... at (no spam) sonic.net> wrote:
Quote: number6 wrote:
His supervisor is a chemistry teacher I believe who gave out this
assignment ...
Oh, nuts. I got hoodwinked into answering
a homework question.
Maybe this guy would like a synthesis for
nitric acid?
If the saviour of young and stupid chemistry students doesn't get
involved ... |
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| Mark Thorson... |
| Posted: Wed Jun 18, 2008 6:21 pm |
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Guest
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mrsethbullock at (no spam) gmail.com wrote:
Quote:
I am new to the chemical industry and am struggling with understanding
the difference between a few basic terms - in particular, the precise
difference between a Certificate of Analysis, a Specification Sheet
and a Product Information Sheet.
Can someone please clarify how these three documents differ from each
other? Both in terms of intent as well as in terms of the information
that goes on each sheet.
A COA is issued by an analytical lab that did
a chemical analysis on the material. A specification
is what you asked for (but maybe not what was delivered,
compare it with the COA). A data sheet is what you
give your customer, which might differ from the spec.
Your spec might specify certain properties and
characteristics, but you might not propagate these
as guarantees to the customer.
Put more simply, the spec is your order to your
supplier. The COA closes the feedback loop by
giving you an analysis from an impartial third
party to confirm that what you received from the
supplier meets your spec. The data sheet is what
you give your customer, and your responsibility
is delivering a material that meets the data sheet
specifications. |
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| Mark Thorson... |
| Posted: Wed Jun 18, 2008 6:24 pm |
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Guest
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number6 wrote:
Quote:
His supervisor is a chemistry teacher I believe who gave out this
assignment ...
Oh, nuts. I got hoodwinked into answering
a homework question.
Maybe this guy would like a synthesis for
nitric acid? |
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| Posted: Sun Jun 22, 2008 5:07 pm |
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Guest
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I am NOT a chemistry student. I am an entrepreneur who does not have
a background in the sciences and very quickly is trying to get one.
Thus, asking a supervisor is also not an option.
Thanks for the comments and please do not think they went to helping
some student cheat a little on his exams.
SB |
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| Posted: Sun Jun 22, 2008 5:14 pm |
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Guest
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I am NOT a chemistry student. I am an entrepreneur who does not have
a background in the sciences and very quickly is trying to get one.
Thus, asking a supervisor is also not an option.
Thanks for the comments and please do not think they went to helping
some student cheat a little on his exams.
SB |
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| number6... |
| Posted: Mon Jun 23, 2008 3:40 am |
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Guest
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On Jun 22, 11:07 pm, mrsethbull... at (no spam) gmail.com wrote:
Quote: I am NOT a chemistry student. I am an entrepreneur who does not have
a background in the sciences and very quickly is trying to get one.
Those terms you asked about ... aren't really chemistry ... more like
bureaucracy ...  |
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