Microsoft Word - BYLAWS 9_26_10

OMB MEETING MATERIALS

167

Straw Man: This document is a starting point for future drafts and is not an approved document. Please do not distribute to laboratory staff for use.

Table 1. Calibration and verification of equipment or systems

Equipment /System

Action

Frequency

Volumetric delivery devices: mechanical pipets, mechanical burets, and liquid dispensers

Verify accuracy using mass of water at a known temperature or by spectrophotometric method

Upon receipt (manufacturer's Certificate of Accuracy may be accepted) Minimum every 6 months

Volumetric delivery devices: positive displacement syringes used for volumetric delivery

Verify accuracy

Upon receipt (manufacturer's Certificate of Accuracy may be accepted)

Volumetric non-class A glassware: pipets, burets, and volumetric flasks

Accuracy using mass of water at a known temperature or by spectrophotometric method Verify water activity of known solutions Method specific water quality attributes.

Upon receipt

Daily when in use E

Water activity meter

Minimally every month

Water, used in all analyses to meet method requirements

Water, used for microbiological analyses

Acceptable levels of Chlorine and Aerobic Plate count

Monthly

08/09/2018