分析证明书

余氯质控样

产品编号: CQC-083
批号: D0421

基质/溶剂: 水 
危害: 刺激 

能力验证

储存及使用说明

2-8℃避光保存
启封前上下翻转3-5次以混匀
1.1000mlClass A 容量瓶中加入900ml无氧及有机物试剂水。
2.打开安瓿瓶，准确移取1.0ml浓缩液至容量拖中。
3.以试剂水定容并混匀。
所得即为要分析的样品，请立即使用

溯源

原料:分析项目原料选用可用的最高纯度原料用于配制该样品。如有相应的NIST标准物质可用，原料纯度及不确定度会后其对照分析校验
天平:所有天平按IS017025校准实验室认证要求每季度校准一次，测源至NIST。所有天平天按照内部标准操作程序查验。查验所用砝码按17025认证要求每年校准一次。
温度计:所有温度计溯源至NIST每年校准一次
玻璃器组:此样品配制过程中涉及的所有玻璃器为人经所有璃器用前经内部标准操作程序校验。移液器按17025证要求每月校准一次。

不确定度

为95%置信区间扩展系数K=2

Certificate of Analysis

Residual Free Chiorine QC CRM

Catalog Number:CQC-083                   Expiraton Date: 2023-04-30 
Lot Number: D0421                              Matrix: WATER 
                                                             Hazards:Iritant

  Study Certified Acceptance

This quality control sample was manufactured by NSI Lab Solutions following quality procedures meeting the requirements of ISO 9001.IsO 17025.and ISO 17034.Acceptance limits are set at current NELAC standardsThe study mean is set at the mean of an interlaboratory proficlencytesting study with outlier rejection.This sample is intended to be used to validate analvtical methods.for detection limit studies. and analyst proficiency testing

Storage Instructions For Use

Store the unopened ampule at 2-8C.Keep away from light.
Prior to opening the ampule,mix contents gently byinversion 3-5 times.
Fill a 1000 mL Class Avolunetric flask with about 900 mL of chlorine free and organics free reagent water. Open the ampule and pipet exactly1.0mL of the concentrate into the flask. Bring the flask to volume with reagent water and mix well. This represents the sample for immediate analysis.

Traceability Informatio

Analvte Source Materials:The highest purity analyte source materials are used in the manufacture of this sample. Analyte source material purity and associated uncertainty has been analytically verified against appropriate NIST SRMs,

Balance: All analytical balances are calibrated on a semiannual basis by an Iso 17025 accredited calibration laboratory and are traceable to NISTTraceable Calibration Certificate available upon request.
All balances are checked daily by an in-house standard operating procedureThe weights used for this daily verification are calibrated annually by an ISO 17025 accredited calibration laboratory and are certified traceable to NIST.Certificate of Calibration and Traceability available upon request.
Thermometer: All thermometers are NIST traceable through thermometers that are calibrated annually by an ISO 17025 accredited calibration laboratory.
Glassware: All giassware used in the manufacture of our samples is Class A.An in-house standard operating procedure is uised to verify all alassware prior to it beina placed into serviceVolumetric pipefors are calibrated every four months by an ISO 17025 accredited calibration laboratory.

Catalog Number: CQC-083 Lot Number: D0421

Homogeneity/Stability/Expiration

This quality control sample was thoroughly mixed in production.Batch homogeneity was established through analyses of samples chosen at random.The stability of this quality control sample is based on short-term and long-term monitoring of the certified concentration.The expiration date is guaranteed to be valid from the manufacture date and is based on results of long-term monitoring.

Ucertainty

The tuncertainty associated with the certified concentration is the expanded uncertainty at 95% confidence interval (CI) with K=2.This expanded uncertainty incorporates contributions from manufacturing,homogeneity,and stability.

注：证书信息仅供参考，以产品附带证书为准。