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Merck
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重要文件

1.19814

Supelco

氟(F)离子标准液

Fluoride standard solution
1 of 1 reviewers received a sample product or took part in a promotion

traceable to SRM from NIST NaF in H₂O 1000 mg/l F Certipur®

同義詞:

Fluoride standard for aquecous matrices ready for use

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About This Item

分類程式碼代碼:
41116107
NACRES:
NA.24
暫時無法取得訂價和供貨情況

品質等級

100

技術

ion chromatography: suitable

pH值

6 (20 °C in H2O)

密度

1.000 g/cm3 at 20 °C

應用

environmental
food and beverages

形式

single component solution

儲存溫度

15-25°C

分析報告

浓度     β（F⁻）：990 - 1010 mg/l
测定方法：用硝酸镧溶液滴定
（可追溯至NIST SRM 682）
方法的准确度： ± 2 mg/l

法律資訊

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

儲存類別代碼

10 - Combustible liquids

水污染物質分類（WGK）

nwg

分析證明 (COA)

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Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

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Reviews

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