亚洲欧美91AV,国产精品无码Av在线播放,日本特级婬片中文免费看,久久亚洲国产高清观看,亚洲综合色区另类aV无码,97人人模人人爽人人少妇

標(biāo)準(zhǔn)品/對(duì)三聯(lián)苯

標(biāo)準(zhǔn)品/對(duì)三聯(lián)苯
產(chǎn)品編號(hào):72215-10mg
CAS號(hào):92-94-4
規(guī)格:10mg
有效期:2026-10-25
品牌:TMstandard
標(biāo)準(zhǔn)值:99.7%

分享到:

資料下載

對(duì)三聯(lián)苯

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) p-Terphenyl(對(duì)三聯(lián)苯)
Product Code(產(chǎn)品編號(hào))72215-10mg
 
Lot Number(產(chǎn)品批號(hào))-
 
CAS No.92-94-4
 
Mol. Weight(分子量)230.31
 
Mol. Formula(分子式)C18H14
 
Melting Point(熔點(diǎn))212-213℃(dec.)
 
Expiry Date(失效日期)2026-Oct-25
 
Boiling point(沸點(diǎn))N/A
 
Appearance(外觀)White to Off-White Solid
(白色固體)____
 
Storage Temp(存儲(chǔ)條件)(20±5)℃,Keep in the shade
常溫(20±5)℃,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

    4008-099-669

    手機(jī)

    18168802993

在線客服
峨眉山市| 庆阳市| 紫阳县| 河津市| 兴安县| 临湘市| 南漳县| 凤阳县| 庆元县| 靖安县| 乌鲁木齐市| 南汇区| 辰溪县| 伊吾县| 古丈县| 军事| 新兴县| 巩义市| 合作市| 察隅县| 武乡县| 通山县| 龙泉市| 盐亭县| 南投县| 静安区| 章丘市| 泸西县| 疏附县| 桦甸市| 邳州市| 白河县| 白山市| 白玉县| 武安市| 韶关市| 正安县| 东源县| 石狮市| 蒲城县| 濉溪县|