CCIL ISO 17025 Quality Management 5

Question 1

Under ISO 17025, what is the significance of defining the 'scope of accreditation' for a laboratory?

Accepted Answer

It precisely defines the specific tests, calibrations, and measurement ranges for which the laboratory is accredited

Answer

It specifies which staff members are authorized to sign test reports

Answer

It describes the geographic area in which the laboratory may accept samples

Answer

It sets the maximum number of samples the laboratory may process per year

Question 2

A customer requests that a laboratory use their (the customer's) specified test method rather than the laboratory's standard method. Under ISO 17025, the laboratory should:

Accepted Answer

Evaluate whether the customer method is appropriate and inform the customer of any concerns before proceeding

Answer

Always refuse to use customer-specified methods to maintain impartiality

Answer

Accept the method without question since the customer bears responsibility

Answer

Submit the customer's method to the accreditation body for pre-approval

Question 3

ISO 17025 requires laboratories to define criteria for reviewing requests, tenders, and contracts. What is the primary purpose of this review?

Accepted Answer

To ensure the laboratory has the capability, resources, and method to meet customer requirements before committing

Answer

To negotiate the highest possible price for laboratory services

Answer

To verify that the customer has paid any outstanding invoices

Answer

To determine whether the work requires subcontracting to a preferred partner

Question 4

When reporting measurement results with expanded uncertainty, what coverage factor (k) is most commonly used to express uncertainty at approximately 95% confidence?

Accepted Answer

k = 2

Answer

k = 1

Answer

k = 3

Answer

k = 1.645

Question 5

According to ISO 17025, how should a laboratory handle situations where a customer requests that test results be reported without measurement uncertainty?

Accepted Answer

The laboratory may omit uncertainty if the customer requests it and the reason for exclusion is stated in the report

Answer

The laboratory must always include uncertainty regardless of customer request

Answer

Omitting uncertainty is only allowed if the test result is within specification

Answer

The accreditation body must authorize each individual omission

Question 6

Under ISO 17025, 'technical records' must be retained for a specified period. Which statement about these records is correct?

Accepted Answer

The retention period should be specified by the laboratory and be consistent with contractual, legal, and accreditation body obligations

Answer

Technical records must be retained for exactly 5 years regardless of test type

Answer

Only final reports need to be retained; raw data may be discarded after result validation

Answer

Technical records must be stored only in paper form to prevent electronic data loss

Question 7

A laboratory implements a new Laboratory Information Management System (LIMS). Under ISO 17025, which requirement must be met before the system is used for reporting results?

Accepted Answer

The LIMS must be validated to ensure it produces correct results and be authorized for use before implementation

Answer

The LIMS vendor must be ISO 17025 accredited

Answer

All staff must complete a minimum of 40 hours of LIMS training

Answer

The accreditation body must perform an on-site assessment of the new LIMS