For tests performed to meet NPDES objectives, synthetic, moderately hard water should be used.
Synthetic, moderately hard water should be used for NPDES testing.
For tests performed to meet NPDES objectives, soft water should be used.
He was afraid they were poisoning his food.
Most screening items have been used by research staff but not clinical staff.
A worker does his job, wearing the appropriate safety gear.
The disciples put their messiah before themselves.
A softball player is trying to score.
He used a homemade periscope and he assembled a scout meeting.