異丙醇_單標(biāo)_有機(jī)類_標(biāo)準(zhǔn)物質(zhì)_萘析商城

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異丙醇

BW901134

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100mg

秦境

99.9%

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異丙醇介紹：

mg src="file:///C:\Users\ADMINI~1\AppData\Local\Temp\ksohtml4708\wps2.png"/>REFERENCE MATERIAL CERTIFICATE

Reference Material

This certificate is designed in accordance with ISO 17034 and ISO Guide 31. This reference material (RM) was designed,produced and verified in accordance with ISO/IEC 17025, ISO 17034 and a registered quality management system ISO9001.

Product Name	2-Propanol
Product Code	BW901134
Lot Number	23111511
CAS No.	67-63-0
Mol. Formula	C₃H₈O
Mol. Weight	60.10
Certified on	9 Nov 2023
Expiry Date	8 Nov 2028
Storage Temp	4°C ± 4°C
Specification	100mg

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

99.9%

1.0%

Uncertainty

The certified value(s) and uncertainty(ies) are determined in accordance with ISO 17034 with an 95% confidence level (k=2). Uncertainty is based on the Total Combined Uncertainty, including uncertainties of characterisation, homogeneity and stability testing. Stability values are based on real evidence opposed to simulation.

The producer certifies that this reference material meets the specification stated in this certificate until the expiry date, provided it is stored unopened at the recommended temperature herein. Product warranties for this reference material are set out in the terms and conditions of purchase.

Intended Use

This RM is intended for use in a laboratory as a calibration and quality control standard or in method development for analytical techniques.

Safety

Proper precautions should be observed while handling. See Safety Data Sheet.

Traceability

The balances used for gravimetric measurements are calibrated with weights traceable to the national standards (DKD). The calibration of the balances is verified daily internally and annually by an external accredited calibration service. Chromatographic methods are traceable to the International System of Units (SI).

Homogeneity

Random replicate samples of the final packaged RM have been analysed to prove homogeneity compliant with ISO 17034.

Storage

The RM should be stored in the original sealed container at the indicated temperature.

Instructions for use

It is recommended to use 1 mg as the minimum sample size and if less material is used, to increase the certified uncertainty by a factor of two for half sample and four for a quarter of sample. If storage after opening is necessary, the RM should be tightly closed and kept from light and moisture. If the RM was in a sealed ampoule, it should be transferred to a vial with minimum head space.</p

本公司銷售的所有產(chǎn)品僅供實驗科研使用，不用于人體及臨床診斷。

1. 標(biāo)準(zhǔn)名稱及標(biāo)準(zhǔn)號

GB/T 7814-2017 工業(yè)用異丙醇

2. 適用范圍

本標(biāo)準(zhǔn)規(guī)定了工業(yè)用異丙醇的技術(shù)要求、試驗方法、檢驗規(guī)則及標(biāo)志、包裝、運輸、貯存等要求，適用于以丙烯為原料經(jīng)水合法或丙酮加氫法生產(chǎn)的工業(yè)用異丙醇。

3. 核心檢測方法

主要采用氣相色譜法（GC）測定異丙醇純度及雜質(zhì)含量，同時規(guī)定水分測定按卡爾·費休法，酸度通過酸堿滴定法完成。

4. 檢出限與定量限

氣相色譜法對異丙醇中主要雜質(zhì)（如丙酮、正丙醇）的檢出限為0.001%（質(zhì)量分?jǐn)?shù)），定量限為0.005%；水分測定的檢出限為0.005%（卡爾·費休法）。

5. 質(zhì)控樣品要求

實驗需使用有證標(biāo)準(zhǔn)物質(zhì)（CRM）進(jìn)行校準(zhǔn)，質(zhì)控樣品應(yīng)包含異丙醇主體及典型雜質(zhì)（如丙酮、水等），濃度范圍需覆蓋實際樣品可能存在的波動區(qū)間。

6. 關(guān)鍵實驗步驟

① 樣品前處理：確保樣品均勻且無揮發(fā)損失；
② 氣相色譜條件優(yōu)化：選用極性色譜柱（如PEG-20M），進(jìn)樣口溫度200℃，檢測器溫度250℃；
③ 卡爾·費休滴定前需對儀器進(jìn)行標(biāo)定，避免環(huán)境濕度干擾。

7. 特別說明

異丙醇具有揮發(fā)性和易燃性，實驗需在通風(fēng)櫥中操作；廢液需按危險化學(xué)品廢棄物規(guī)范處理。檢測結(jié)果需結(jié)合不確定度評估，并在報告中注明檢測方法依據(jù)的標(biāo)準(zhǔn)編號。

以上信息僅供參考，請以相應(yīng)標(biāo)準(zhǔn)的原文為準(zhǔn)！