Page 198 - MarTol Css Cblm Basic

COMPUTER SYSTEM SERVICING NC II - CBLM

INFORMATION SHEET 4.1-3
Threshold Limit Value

Learning Objectives:

After reading this information sheet, the student/ trainee should be able to;

1. Prevent exposure to substances which could be hazardous to their
health.
2. Distinguish appropriate types of measurement that can affect the health.

The key to preventing exposure to substances, which could be hazardous to
health, depends on the first two steps mentioned – recognition of the hazard or
potential hazard, and, evaluation of the extent of the hazard. People in the workplace
may encounter hazards from several sources. An important means of evaluation is
measurement to determine the extent of the threat.

MEASUREMENT – WHICH TECHNIQUE

The health effects of exposure to toxic substances can be acute or chronic. It will
therefore be necessary to distinguish appropriate types of measurement:

1. Long term measurements which access the average exposures of a person
over an extended time period.

2. Continuous measurements capable of detecting short-term exposures to high
concentrations of short-term exposure to high concentrations of contaminants,
which cause an acute exposure.

Date Developed:
SECTOR ELECTRONICS Document No.
May 04, 2020
RTC Issued by:
ZAMBOANGA QUALIFI- COMPUTER Developed By: Page 197
City CATION SYSTEM Mario Elmer B. Revision #___ of 256
SERVICING NC II Tolo