Example: dental hygienist
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Guidance on Preparing Workplaces for COVID-19
www.osha.govcontact with other people, show increased interest in home delivery services, or prefer other options, such as drive-through service, to reduce person-to-person contact. Interrupted supply/delivery . Shipments of items from geographic areas severely affected by COVID-19 may be delayed or cancelled with or without notification.
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www.waters.comcontains an organic modifier (e.g., acetonitrile, methanol, etc.) ensure that the membrane material does not dissolve in the solvent. Contact the membrane manufacturer with solvent compatibility questions. Alternatively, consider centrifugation for 20 minutes at 8000 rpm, followed by the transfer of the supernatant liquid to an appropriate vial.