Check a table of measured values against the cited limits held for one place, in one call

A lab table of up to 200 rows (parameter, value, unit), each answered by check_value itself: its verdicts (over, under, within, not_comparable with a why), counts and says, or its own coded refusal (an unknown parameter, a value below detection such as <0.005, an ambiguous unit). Each held limit is sent once, in limits, and each verdict names it by index (limit): joined, they are check_value's row with its cite; compared keeps the value in the row's unit and whether that conversion is exact. searched.parameters says how each parameter was matched. summary counts the rows over a limit, under a floor (and over none), within every limit compared, with limits none of which compares, and refused by code. max_rows pages each row's verdicts (over first); check_value with offset gives the rest. Use it instead of one call a row: the door allows 30 calls in 10 seconds.