A simple random sample is a subset of a statistical population where each member of the population is equally likely to be ...

A number of potential sources can cause chronic flare and stack sampling issues. These issues in petrochemical and refining operations (Figure 1) are caused by poorly or inaccurate specified sampling ...

Stratified random sampling is a method of sampling that divides a population into smaller groups that form the basis of test ...

Refiners are in the process of ensuring compliance with Sub Part Ja of the EPA's Title 40, which regulates flare emissions from petroleum refineries. Even though these flare projects will soon be ...

Revision of Chapter 14.1 of the API Manual of Petroleum Measurement Standards (MPMS) was published in June 2001. This revision is the result of 7 years of an extensive natural gas sampling methods ...

Intertek has enhanced its sample cylinders services with the aim of providing further cost savings for clients. Sample cylinders are used by offshore chemists to transport live crude, gas and water ...