U.S. Code of Federal Regulations
Regulations most recently checked for updates: Mar 30, 2023
(a) Application. You may use a chemiluminescent detector (CLD) to measure NO
(b) Component requirements. We recommend that you use a CLD that meets the specifications in Table 1 of § 1065.205. Note that your CLD-based system must meet the quench verification in § 1065.370 and it must also meet the linearity verification in § 1065.307. You may use a heated or unheated CLD, and you may use a CLD that operates at atmospheric pressure or under a vacuum.
(d) Humidity effects. You must maintain all CLD temperatures to prevent aqueous condensation. If you remove humidity from a sample upstream of a CLD, use one of the following configurations:
(1) Connect a CLD downstream of any dryer or chiller that is downstream of an NO
(2) Connect a CLD downstream of any dryer or thermal chiller that meets the verification in § 1065.376.
(e) Response time. You may use a heated CLD to improve CLD response time.