Which wine glasses are dishwasher safe?

Tritan-crystal glasses like the Zwiesel Pure line are repeatedly described as resilient to chipping and dishwasher use by retailers including costco.com and potterybarn, and the Gabriel-Glas StandArt is listed as dishwasher safe and reportedly passed drop tests in nytimes.com's review. Very thin hand-blown glasses such as Zalto are technically dishwasher safe per the maker but reviewers urge caution.