Refers to constituents that exist in true chemical solution in a water sample; as a convenient operational definition used by agencies that collect water data, the term "dissolved" commonly is used to refer to constituents in a representative water sample passed through a 0 45-µm filter membrane for inorganic analysis or a 0 7-µm glass fiber filter for organic analysis
The IMRF Early Retirement Incentive At the employer's option, a member can purchase up to five years of service credit For each period of service credit purchased, the member's age is increased accordingly The member must be at least age 50 and have at least 20 years of service credit (can include Reciprocal service)