NB/T 20039.12-2011
Code on nuclear air and gas treatment Ventilation,air conditioning and cleaning.Part 12:Iodine adsorber(type Ⅱ) (English Version)

Standard No.

NB/T 20039.12-2011

Language

Chinese, Available in English version

Release Date

2011

Published By

Professional Standard - Energy

Status

Be replaced 2023-11

Replace By

NB/T 20039.12-2023

Latest

NB/T 20039.12-2023

Replace

EJ/T 421-1989

Scope

This part specifies the minimum requirements for the design, inspection, testing, manufacturing and quality assurance of iodine adsorbers (Type II). This section applies to iodine adsorbers related to nuclear safety in air purification systems of nuclear facilities. Iodine adsorbers in the air purification system of nuclear facilities that are not related to nuclear safety can also be implemented by reference.

NB/T 20039.12-2011 Referenced Document

• ASTM D2854 Standard Test Method for Apparent Density of Activated Carbon
• ASTM D2862 Standard Test Method for Particle Size Distribution of Granular Activated Carbon
• ASTM D2866 Standard Test Method for Total Ash Content of Activated Carbon
• ASTM D2867 Standard Test Methods for Moisture in Activated Carbon
• ASTM D3466 Standard Test Method for Ignition Temperature of Granular Activated Carbon
• ASTM D3467 Standard Test Method for Carbon Tetrachloride Activity of Activated Carbon
• ASTM D3802 Standard Test Method for Ball-Pan Hardness of Activated Carbon
• ASTM D3803 Standard Test Method for Nuclear-Grade Activated Carbon*， 2022-09-01 Update
• GB/T 1220 Stainless steel bars
• GB/T 3098.6 Mechanical properties of fasteners—Stainless steel bolts，screws and studs*， 2023-05-23 Update
• GB/T 3280 Cold rolled stainless steel plate, sheet and strip*， 2015-09-11 Update
• NB/T 20038-2011 Code on nuclear air and gas treatment general requirements on design and fabrication

NB/T 20039.12-2011 history

• 2023 NB/T 20039.12-2023 Code for Nuclear Air and Gas Handling Ventilation, Air Conditioning and Air Purification Part 12: Iodine Adsorbers (Type II)
• 2011 NB/T 20039.12-2011 Code on nuclear air and gas treatment Ventilation,air conditioning and cleaning.Part 12:Iodine adsorber(type Ⅱ)
• 1989 EJ/T 421-1989 Nuclear-grade high-efficiency iodine adsorber for 300,000-kilowatt pressurized water reactor nuclear power plant

NB/T 20039.12-2011 Code on nuclear air and gas treatment Ventilation,air conditioning and cleaning.Part 12:Iodine adsorber(type Ⅱ) has been changed from EJ/T 421-1989 Nuclear-grade high-efficiency iodine adsorber for 300,000-kilowatt pressurized water reactor nuclear power plant.