Asbestos Questions and Answers Already Graded A

Asbestos Questions and Answers Already Graded A The most common asbestos mineral is Chrysotil The most hazardous common asbestos mineral is Crocidolite The least hazardous asbestos mineral Chrysolite Does asbestos readily dissolved in No Does asbestos remain strong even when wrapped on a hot Yes Does asbestos improve properties of mastics and Plaster's Yes Does asbestos results break down by biological agents Yes There's asbestos conduct electricity No Does asbestos have Crystaline properties Yes Three routes of exposure for hazardous materials Inhalation ingestion and skin exposure primary Way asbestos enters the body Inhalation asbestos is regulated because it is known as a Carcinogen Symptoms of mesothelioma and latency years Severe chest pain 20 to 40 years fatal within 18 months Symptoms of lung cancer latency and prognosis Persistent cough coughing blood 20 years usually fatal Symptoms latency years and prognosis of asbestosis Scarring shortness of breath 10 to 20 years debilitating What lung disease whose likelihood is not clearly related to total exposure does Mesothelioma Lung disease which is not cancer Asbestosis On every asbestos construction project the employer must designate Competent person Employer must in sure that a competent person (CP) has what three things Training responsibility authority PEL Permissible Exposure Limit TWA Time Weighted Average PEL-TWA Excursion limit is .1 f/cc per 8hrs PEL excursion limit is 1.0 f/cc per 30 min Air monitoring samples are collected with what Personal monitoring pump and cassette The monitoring is that must be placed in facing down within 12 inches of Breathing zone Negative exposure assessment (NEA) Demonstration by the employer that PEL will not be exceeded for the project PACM Presumed Asbestos Containing Material PACM includes 3 types Surfacing..... resilient flooring ..... thermal system insulation (TSI) Asbestos flooring installed after this year is not PACM 1980 5 means of confining and minimizing fiber dispersal Don't make it friable keep it contained keep it wet HEPA filters control airflow example of class 1 asbestos work is Removal of popcorn