0 Корзина


Показать русскую версию

ANALYSIS CERTIFICATE

CODE:   313179 BATCH:   0000768612
PRODUCT:   Chromium standard solution Cr=1.000 g/l for AAS
ISSUE DATE: 23/02/2016 RETEST DATE: 02/2020


SPECIFICATIONS GUARANTEE VALUE ACTUAL VALUE
Concentration    1,000
Determination method D   
Uncertainly ± 0,0015   


Balance
Calibrated periodically against traceable weights.

Volumetric gassware
Class A according NBS, document NBSIR-74661-Dec 1974

Determination of concentration
The concentration value of the element is evaluated in front of Chromium standard traceable itself with NIST standard, SRM 3112a.


DETERMINATION METHODS SUBSTANCE SRM/NIST
A Argentimetric titration Potassium Chloride 999b
B Redox titration Potassium Dichromate 136f
C Complexometric titration Zinc 682
D Iodometric titration Arsenic III Oxide 3103a
E Spectrophotometric


Notes
• All chemicals used preparing this standard solution are PA-ACS quality.
• The stability of prepared solution must be checked periodically by the user.
• Don't use the solution if it is contaminated accidentally.
• Is recommended to discard the solution 6 month after opening the bottle.



CODE:   313179 BATCH:   0000768612

СЕРТИФИКАТ АНАЛИЗА

CODE:   313179 BATCH:   0000768612
PRODUCT:   Хрома стандартный раствор Cr=1.000 г/л for AAS
ISSUE DATE: 23/02/2016 RETEST DATE: 02/2020


Спецификация ГАРАНТИРОВАННОЕ ЗНАЧЕНИЕ ДЕЙСТВИТЕЛЬНОЕ ЗНАЧЕНИЕ
Концентрация    1,000
Метод определения D   
Неопределенность ± 0,0015   


Balance
Calibrated periodically against traceable weights.

Volumetric gassware
Класс A according NBS, document NBSIR-74661-Dec 1974

Определение уровня концентрация
The концентрация value the element is evaluated в front Хрома стандарт traceable itself с NIST стандарт, SRM 3112a.


Метод определенияS SUBSTANCE SRM/NIST
A Argentimetric titration Калия хлорид 999b
B Redox titration Калий Dichromate 136f
C Комплексонометр. titration Цинк 682
D Iodometric titration Arsenic III Оксид 3103a
E Спектрофотом.


Notes
• All chemicals used preparing this стандартный раствор are PA-ACS quality.
• The stability prepared раствор must be checked periodically by the user.
• Don't use the раствор if it is contaminated accidentally.
• Is recommended до discard the раствор 6 month после opening the bottle.



CODE:   313179 BATCH:   0000768612



chevron-up