If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
327816
Polystyrene
analytical standard, suitable for gel permeation chromatography (GPC), 2,000,000
Synonym(s):
PS
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
grade
analytical standard
Quality Level
form
fibers
mol wt
average Mw 2,000,000 (Typical)
technique(s)
gel permeation chromatography (GPC): suitable
format
neat
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Related Categories
1 of 1
This Item | |||
|---|---|---|---|
| technique(s) gel permeation chromatography (GPC): suitable | technique(s) gel permeation chromatography (GPC): suitable | technique(s) gel permeation chromatography (GPC): suitable | technique(s) gel permeation chromatography (GPC): suitable |
| form fibers | form fibers | form powder | form - |
| format neat | format neat | format neat | format neat |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| grade analytical standard, for GPC | grade analytical standard, for GPC | grade analytical standard, for GPC | grade analytical standard, for GPC |
| mol wt average Mw 2,000,000 (Typical) | mol wt average Mw 900,000 (Typical) | mol wt average Mw 4,000 (Typical) | mol wt Mn ~8950, Mp ~10250, Mw ~9500 |
General description
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 327816-1G | 04061825965932 |
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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