Biomaterial Database

Laboratory evaluation of a recording respirable mass monitor. 1978

J C Volkwein, and P T Behum

A laboratory evaluation was conducted of an impaction-beta detection recording respirable mass monitor (RRMM), a prototype of the commercial RDM-301 manufactured by GCA Corporation. Areas investigated were the effect of dust concentration, size distribution, and sampling time on the accuracy and precision of the RRMM instrument when compared with personal gravimetric samplers. Results showed a good linear correlation between 1 and 20 mg/m3. However, the RRMM underestimated the gravimetric concentration when a significant mass of submicrometer particles was present. A commercial RDM-301 was also tested, and a decrease in precision was observed with decreasing concentration for a set sample time.

UI	MeSH Term	Description	Entries
D010316	Particle Size	Relating to the size of solids.	Particle Sizes,Size, Particle,Sizes, Particle
D004391	Dust	Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)	House Dust,Housedust,Dust, House
D004864	Equipment and Supplies	Expendable and nonexpendable equipment, supplies, apparatus, and instruments that are used in diagnostic, surgical, therapeutic, scientific, and experimental procedures.	Apparatus and Instruments,Devices,Medical Devices,Device, Medical,Devices, Medical,Equipment,Inventories,Medical Device,Supplies,Device,Instruments and Apparatus,Inventory,Supplies and Equipment
D005069	Evaluation Studies as Topic	Works about studies that determine the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies.	Critique,Evaluation Indexes,Evaluation Methodology,Evaluation Report,Evaluation Research,Methodology, Evaluation,Pre-Post Tests,Qualitative Evaluation,Quantitative Evaluation,Theoretical Effectiveness,Use-Effectiveness,Critiques,Effectiveness, Theoretical,Evaluation Methodologies,Evaluation Reports,Evaluation, Qualitative,Evaluation, Quantitative,Evaluations, Qualitative,Evaluations, Quantitative,Indexes, Evaluation,Methodologies, Evaluation,Pre Post Tests,Pre-Post Test,Qualitative Evaluations,Quantitative Evaluations,Report, Evaluation,Reports, Evaluation,Research, Evaluation,Test, Pre-Post,Tests, Pre-Post,Use Effectiveness
D000336	Aerosols	Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.	Aerosol
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor