12.1 Chemical compatibility
You can damage a Kvick Lab cassette holder by exposing it to chemicals incompatible with stainless
steel. The gaskets used to connect piping to the sanitary fittings of the holder are made of EPDM, and
are resistant to many types of chemicals (see the Table below). Consult the Cytiva Cassettes:
Instructions for Use manual for guidelines on the chemical compatibility of cassettes.
Table 12.1: Chemical resistance of Kvick Lab cassette holder wetted parts
Chemical
SS 316L Resistance
EPDM Resistance
Acetic acid 1.7 M
Resistant
Resistant
EtOH 20%
Resistant
Resistant
EtOH 40%
Resistant
Resistant
Ethylene glycol 50%
Resistant
Resistant
Formaldehyde 1.7 M
Resistant
Resistant
Formic acid 10%
Resistant
Resistant
Glycerol 100%
Resistant
Resistant
Hydrochloric acid 0.1 M
Not recommended
Resistant
Isopropyl alcohol 30%
Resistant
Resistant
Nitric acid 0.1 M
Resistant
Resistant
Phosphoric acid 25%
Limited resistance
Resistant
Sodium chloride 0.5 M
Resistant
1
Resistant
Sodium hydroxide 2 M
Resistant
2
Resistant
Triflouroacetic acid 0.1%
Resistant
Resistant
Triton™ X-100 100%
Resistant
Resistant
Urea 8 M
Resistant
Resistant
1
Do not use sodium chloride in storage solutions. Sodium chloride can cause corrosion on stainless steel at pH less than 5.
2
Maximum recommended exposure is 4 hours.
12 Appendix
12.1 Chemical compatibility
64
Learning to Use the Kvick Lab Cassette Holder User Manual 18117269 AI
