The selected sampling method examines the collection and analysis of hydrochloric acid when dealing with occupational hygiene. The chemical compound name for the product is HCL which a chemical abstract service number of 7647-01-0. Before the sampling method is applied, hydrochloric acid is collected using 0.1 NaOH. This followed by a critical analysis of the compound using an appropriate ion electrode. This can also be conducted by adding AgN03 and taking the measurement of turbidity formed. NIOSH 7906 sampling method helps to give an accurate analysis of the gaseous and fluoride components available in the compound. The solid sorbent tube is used as the sampler for the compound, and the estimated flow rate is 0.2 to 0.5 L/min. In these methods, an occupational exposure limit is approximated at Ceiling 2 ppm, and this means the process involves risks that should be avoided (DiNardi, 2003).

The sampling method seeks to help an individual to collect inhalable portions of acid aerosols by using a prefilter, the reason behind this approach is that it provides detection of acids at a lower limit. The most commonly recommended acids depict a higher sampling flow rate. The sampling media for occupational hygiene involves the use of a solid sorbent tube, to be specific, washed silica gel, 400 mg/200 mg with glass fiber filter plug would be appropriate for this method. Calibration of the individual in respect to the sampler is also an essential factor to consider while evaluating the inputs (DiNardi, 2003).   The sampler end need to be broken instantaneously right before sampling is done, sampler and flexible tubing are also added to the individual sampling pump. It is advisable to follow the correct steps while preparing the sampling.

The method measures the total concentration of six airborne acids which includes hydrofluoric acid, hydrochloric acid, phosphoric acid, hydrobromic acid, nitric acid, and sulfuric acid. The corresponding acids may be collected on a single sampler and determined simultaneously on. Accurate inferences for the sampling methods can be achieved by using particulate salts of all the acids will give a positive interference (DiNardi, 2003).  While conducting the sampling, it is essential to take precaution since volatile inorganic acids such as hydrochloric acids may react with the co-sampled case that is fitted on the pre-filter. Besides, substances such as nitrates and chlorides removed through the pre-filter have the ability to respond with airborne acids leading to inaccurate results.

In conclusion, the sampling method established by NIOSHA for inorganic acids provides a safe occupational condition for people. It is recommended that the preparations for sampling should be done accurately while taking into consideration possible risks such spontaneous explosion. The method is validated by NIOSHA, and frequent improvements are made to ensure safety at the workplace. The approach methods were expansively validated. In addition, these methods represent remarkable advances in sampling and also analytical methodologies comprising chemical vapor and mists in workplace atmospheres. The method intentions in the coming future involve, additional occupational exposure observing methods grounded on international charitable consensus criteria will be assimilated into the NIOSH Handbook of Analytical Methods. The sampling method seeks to help an individual to collect inhalable portions of acid aerosols by using a prefilter, the reason behind this approach is that it provides detection of acids at a lower limit.

 
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