Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-50 - Accreditation of environmental laboratories
Section 173-50-069 - Data and record traceability
Universal Citation: WA Admin Code 173-50-069
Current through Register Vol. 24-06, March 15, 2024
(1) In order to demonstrate data traceability, laboratories must:
(a) Be able to recreate final sample results
by means of records in entirety;
(b) Document proper storage of any chemical,
reagent, and/or media used by an analytical method;
(c) Document proper storage of samples and
samples extracts as required by the specific analytical method and/or
regulation;
(d) Document that all
temperature-based equipment such as a refrigerator, oven, or incubator is
within control. When electronic record keeping equipment is used, these records
must be appropriately monitored by lab personnel to verify that temperatures
meet relevant method and regulatory requirements;
(e) Keep a log for any and all instruments,
including documentation of installation, setup, maintenance, and removal from
service; and
(f) Document proper
preparation and QC of chemicals, reagents, and media used in support of the
analyses.
(2) When records are handwritten, they must be in indelible ink and comply with the relevant method requirements and include the date and time(s) of reading, temperature(s), and technician's initials.
(3) Unmonitored use of continuous data-loggers is not an acceptable substitute when methods and/or regulations require temperature checks. Use of electronic record keeping equipment is allowed when:
(a) The equipment can
demonstrate the accuracy and precision required by the applicable method and/or
regulations;
(b) It includes the
date and time the record was captured, using a fully traceable and secure
format; and
(c) It is not being
used on an incubator used for analysis of samples for microbiology
parameters.
Disclaimer: These regulations may not be the most recent version. Washington may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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