33384EC155 Replacement Molecular Sieve Bottles

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1. Which countries can the molecular sieve be shipped to?

   The molecular sieve is a non-hazardous material that can be shipped to any country.

2. Can molecular sieve be used in the future to replace bottles for gas analyzers sold before July 2017?

   The molecular sieve is a direct replacement for the old magnesium perchlorate bottles. The molecular sieve may be used for any Campbell Scientific analyzer that used the old bottles.

3. Why did Campbell Scientific start using molecular sieve? Does it have the same effect as the previously used chemicals?

   The molecular sieve has been demonstrated here by our engineering department to be effective at removing CO₂and H₂O from the air sample. The change was made for two reasons:

   1. It was a safer alternative than using the previous chemicals.
   2. Increased shipping regulations for the chemicals limited the number of suppliers.
4. To prepare the molecular sieve, how many grams are needed per bottle?

   The bottles of sieve for drop-in replacement contain the pellets and a membrane on top. The membrane is necessary to keep the pellets contained while allowing gas to pass over the zeolite. The bottle has the same footprint as the old magnesium perchlorate bottles. The amount in each bottle is listed on the bottle. The amount of sieve needed for each analyzer is the following:

   • The EC150 needs 22 g (drop-in bottle).
   • The IRGASON^®needs 22 g (drop-in bottle).
   • The EC155 needs 22 g (drop-in bottle).
   • The AP200 needs 500 g (refill).
   • The 27423 needs 1000 g (refill).
   • The 31022 needs 500 g (refill).