The phrase "a more stringent set" is correct and usable in written English.
It can be used when referring to a collection of rules, standards, or criteria that are stricter or more demanding than another set.
Example: "The new regulations require a more stringent set of safety measures to be implemented in the workplace."
Alternatives: "a stricter set" or "a tougher set".
Students must apply for admission to the college and meet a more stringent set of standards to graduate from it.
In 2012, the Obama administration approved a more stringent set of standards, which would steadily increase the efficiency of certain vehicles through 2025.
Rather than impose standards on the players we allowed them to have control, and they imposed on themselves a more stringent set of standards than any of the coaches would have done.
These sorts of manoeuvres are sure to cause a huge row, and thereby arguably do more damage to the world's poor than climate change will.But America will never consent to a more stringent set of environmental standards through the WTO.
To give the governor his due, he proposed a more stringent set of debt limits but could not persuade legislative leaders to accept them, and in the just concluded budget debate, it was only Mr. Pataki who made a serious issue of debt reform.
Some are already calling for a more stringent set of rules.
Since massively parallel pyrosequencing is known to be less error-prone than traditional Sanger sequencing [ 33], we used a more stringent setting than default.
To estimate the relative transcript abundance differences of the assembled contigs in FW and SW gills, the reads from each library were mapped back to the combined FW&SW gill transcriptome using a more stringent setting (minimum length fraction =0.9, minimum similarity fraction =0.8).
But because a new, more stringent set of federal nutritional standards is set to take effect this fall, education officials said earlier this month that WITS could not create school meals because it could not ensure that all meals would meet the new rules, potentially costing the city some federal school lunch funding.
In order to obtain an even more stringent set of OCT4 target genes, we searched the promoter sequences of the targets for the occurrence of the known OCT4-related octamer and SOX-OCT joint motifs within a distance of 8 kb upstream of the respective TSSs (see Material and Methods).
Flying within or from Europe Even if you're not a citizen of the European Union, a completely different (and more stringent) set of passenger rights applies.
