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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.
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.
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.
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.
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 |