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/鄰苯二甲酸二丁酯

標(biāo)準(zhǔn)品/鄰苯二甲酸二丁酯
產(chǎn)品編號(hào):71081
CAS號(hào):84-74-2
規(guī)格:500mg
有效期:2030-12-20
品牌:TMstandard
標(biāo)準(zhǔn)值:99.7%

分享到:

資料下載

鄰苯二甲酸二丁酯

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(chēng)) Dibutyl Phthalate(鄰苯二甲酸二丁酯)
Product Code(產(chǎn)品編號(hào))71081
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS No.84-74-2
 
Mol. Weight(分子量)278.34
 
Mol. Formula(分子式)C16H22O4
 
Melting Point(熔點(diǎn))N/A
 
Expiry Date(失效日期)2030-Dec-20
 
Boiling point(沸點(diǎn))340℃(dec.)
 
Appearance(外觀(guān))Liquid
(液體)______________________
 
Storage Temp(存儲(chǔ)條件)Normal temperature,Keep in the shade
常溫,置于陰涼處
C E R T I F I E D
Purity
99.7%
 
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

GC


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(huà)

    4008-099-669

    手機(jī)

    18168802993

在線(xiàn)客服
财经| 泰州市| 西青区| 双城市| 桂平市| 荥阳市| 双辽市| 乌鲁木齐市| 郎溪县| 永丰县| 锡林郭勒盟| 新河县| 聊城市| 华容县| 达孜县| 化隆| 黔西| 东光县| 尉犁县| 本溪| 兴城市| 松桃| 涿鹿县| 奉新县| 克什克腾旗| 汉阴县| 衡南县| 遂宁市| 晋中市| 炉霍县| 方山县| 汝阳县| 蒲城县| 台湾省| 永仁县| 城固县| 枣强县| 鄂托克前旗| 漠河县| 洱源县| 满城县|