Hach Stablcal® Standard 是否經過 NIST 認證？
Are Hach Stablcal® Standard NIST certified?
• 2022/8/6
• Knowledge
• 2022/8/6
• Knowledge
Title
Are Hach Stablcal® Standard NIST certified?
Are Hach Stablcal® Standard NIST certified?
Summary used
Stablcal standards are not NIST ceritifed
Answer
The Formazin and Stablcal® solutions provided by Hach are not NIST traceable because NIST does not carry turbidity standards. However, Formazin and Stablcal® are accepted by the EPA as the primary standard to be used in the calibration of turbidity instruments. Hach Method 8195 is an EPA accepted method for measurement of turbidity and uses formazin solutions for instrument calibration. See the attached letter for more information.
Hach 提供的 Formazin 和 Stablcal® 溶液無法透過 NIST 追溯，因NIST 沒有提供濁度標準。然而，Formazin 和 Stablcal® 被美國環保署接受為濁度儀器校正的主要標準。 Hach Method 8195 為美國 EPA 認可之濁度測量方法，使用Formazin溶液進行儀器校正。請參閱附件信件以了解更多資訊。
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Article Number
000011929
Article Number
000011929
URL Name
KA-en-US-TE1742-1001671