Total dissolved solids are differentiated from total suspended solids (TSS), in that the latter cannot pass through a sieve of two micrometers and yet are indefinitely suspended in solution.
Blood Tests Cost. Typical costs: CostHelper readers with insurance report out-of-pocket costs of $283-$675 for blood tests, with an average of $432; total billed costs were $312-$1,200 (averaging $755), with the insurance either paying or discounting the total cost by $29-$525.
Today, I estimate that average national drug testing cost overall is about $38 per test. (large corporations and medium-sized to very-small businesses included). However, very large companies performing a very large volume of employee drug tests annually usually enjoy a rate as low as $30 per test.