English to Chinese Marketing Finance (general) audit

Environmental sampling
Generally, it is not the auditor's role to carry out sampling.
...
However, if the facility being audited has limits on 【discharges】, and a discharge is occurring and there is some uncertainty about the discharge’s quality, the auditor may decide to take a sample to determine compliance with the limit condition. In this case, the auditor must collect a sample that represents the condition being assessed and must collect it in a manner consistent with the collection,