A (silica control program) can be crystalline.Logical formLearned from2 sentences. Hazards may be associated with crystalline silica.Logical formLearned from2 sentences. Exposures to crystalline silica may be documented.Logical formLearned from2 sentences. Potential can be for exposure to silica.Logical formLearned from2 sentences. Overexposures can be to crystalline silica.Logical formLearned from2 sentences. Overexposures to crystalline silica can be likely.Logical formLearned from2 sentences. Exposures to crystalline silica may be addrest in standards.Logical formLearned from2 sentences. An employee may be exposed to levels of silica.Logical formLearned from2 sentences. Materials may include (silica sand).Logical formLearned from2 sentences. An analysis of silica may require that something-is-the-case.Logical formLearned from2 sentences. A person may focuse on crystalline silica.Logical formLearned from2 sentences. A (silica exposure limit) can be for some cases.Logical formLearned from2 sentences. (Silica exposure) may lead to (lung injuries).Logical formLearned from2 sentences. An employee can be familiar with (health hazards) of silica.Logical formLearned from2 sentences. A hazardous chemical can be such as silica.Logical formLearned from2 sentences.