Sign in | register
Project Introduction English

National reference material resource sharing platform

Sponsor: China Academy of Metrology, State Administration of Market Supervision
Sales hotline: 010-64524710
JJG 631-2013 ammonia nitrogen automatic monitor
Source: Clicks: 1413 Updated: 2023-06-16 Click to share

This regulation is applicable to the first verification, subsequent verification and in-service inspection of online ammonia nitrogen automatic monitor based on electrode method and photometric method.

Full text link

http://jjg.spc.org.cn/resmea/standard/JJG%2520631 -2013/?

GBW(E)080220 Reference material for ammonia nitrogen composition analysis in water
GBW(E)085833 Ammonia nitrogen solution reference material
GBW(E)085834 Ammonia nitrogen solution reference material
GBW(E)085835 Ammonia nitrogen solution reference material
GBW(E)085836 Ammonia nitrogen solution reference material
GBW(E)085837 Ammonia nitrogen solution reference material
GBW(E)085838 Ammonia nitrogen solution reference material
GBW(E)085839 Ammonia nitrogen solution reference material
Order Phone
010-64524710
mailbox
crm-service@nim.ac.cn
Cooperative telephone
010-64525639/64524804
Complaints and feedback
010-64525639/64524793
After sales service and consultation
010-64524718/64524764/64524719
address
Object Service Hall, Floor 2, Floor 1A, West Gate, No. 18, North 3rd Ring East Road, Chaoyang District, Beijing
Reference Material Research and Management Center of China Academy of Metrology (Office of National Reference Material Research Center) Filing No.: Jing ICP Bei No. 10016728-3 Jingongwang Filing No. 11010502037132
Please leave a message and we will reply to you as soon as possible!
* full name:
fixed telephone:
* mail box:
Message subject:
Message content:
Save information
Sign in
account number
password
determine