欧美色图88,美女免费三级网站,AV不卡专区,女优专区校园春色,亚洲一级二级三级视频,老色鬼无码视频在线观看

標(biāo)準(zhǔn)品/庚酸

標(biāo)準(zhǔn)品/庚酸
產(chǎn)品編號:72004-1g
CAS號:111-14-8
規(guī)格:1g
有效期:2030-06-27
品牌:TMstandard
標(biāo)準(zhǔn)值:99.9%

分享到:

資料下載

庚酸

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 17025ISO 17034 and a registered quality management system ISO 9001.

Product Name(產(chǎn)品名稱) Heptanoic Acid(庚酸)
Product Code(產(chǎn)品編號)72004-1g
 
Lot Number(產(chǎn)品批號)-
 
CAS No.:111-14-8
 
Mol. Weight(分子量)130.18
 
Mol. Formula(分子式)C7H14O2
 
Melting Point(熔點)N/A
 
Expiry Date(失效日期)2030-Jun-27
 
Boiling point(沸點)223℃(dec.)
 
Appearance(外觀)Liquid
(液體)______________________
 
Storage Temp(存儲條件)Normal temperature,Keep in the shade
常溫,置于陰涼處
 
Transportation(運輸條件)Normal temperature transportation(常溫運輸)
C E R T I F I E D
Purity
99.9%
 
C E R T I F I E D
Expanded Uncertainty (U)
0.5%
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.

Traceability

The balances used for gravimetric measurements are calibrated with weights traceable to the national standards. The calibration of the balances is verified annually by an external accredited calibration service. This analysis method has been verified using an approach consistent with ISO 17034:2016 & ISO 17025:2017.

CERTIFICATE    ONQC    SIGNATURE
-RM Release
Method of Identification

Neutralization titration


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.

Storage

This reference material meets the specification stated in this certificate until the expiry date, provided it is stored unopened at the recommended temperature here in. If storage after opening is necessary, the RM should be tightly closed and kept from light and moisture.

Hazards

Read Material Safety Data Sheet (MSDS) and understand any potential hazard(s) prior to the use of this product. All chemicals should be considered potentially hazardous in nature and should only be handled by qualified personnel using established good laboratory practices.

Homogeneity

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

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.Visit the support section of our website technology videos and frequently asked questions.


壇墨質(zhì)檢
  • 電話

    4008-099-669

    手機(jī)

    18168802993

在線客服
南华县| 商南县| 昌江| 垦利县| 昌平区| 昭觉县| 汾阳市| 海兴县| 墨竹工卡县| 玉环县| 同仁县| 烟台市| 桓台县| 锦州市| 连城县| 阿坝县| 清水县| 定结县| 六枝特区| 神池县| 黔西县| 大同县| 墨玉县| 攀枝花市| 潜江市| 洪洞县| 磐石市| 双鸭山市| 巧家县| 平凉市| 故城县| 云林县| 乌拉特前旗| 阿尔山市| 民丰县| 湘乡市| 九龙县| 姚安县| 兴隆县| 津南区| 遵义县|