Four gas mixtures in steel cylinders to be used in semiconductor manufacturing

THE FOUR MIXTURES ARE:

 

Mixture 1 -- 4% Argon (CAS No 7440-37- 1), 1%
Xenon (CAS No 7440-63-3), 95% Neon (CAS No 7440-01-9);

Subheading HS: 3824.99.

 

Mixture 2 -- 2% Krypton
(CAS No 7439-90-9), 98% Neon (CAS No 7440-01-9);

Subheading HS: 3824.99.

 

Mixture
3 -- 4% Argon (CAS No 7440-37- 1), 1% Fluorine (CAS No 7782-41-4), 95% Neon
(CAS No 7440-01-9);

Subheading HS: 3824.99.

 

Mixture 4 -- 2% Krypton
(CAS No 7439-90-9), 1% Fluorine (CAS No 7782-41-4), 97% Neon (CAS No 7440-01-9).

Subheading HS: 3824.99.






Source: https://rulings.cbp.gov/index.asp, June 16, 2017 (N286495)