Section 139.32. Sampling and analytical procedures

(a) Sampling and analytical techniques which may be used directly or employed as reference standards against which other methods may be calibrated shall be as follows:

Contaminant	Sampling Method	Analytical Method
Settled particulates (total)	Open top cylinder (6)	Gravimetric (6)
Beryllium	High-volume filtration (7)	Spectrographic (7)
Flourides (total soluble, as HF)	Filtration plus gasabsorption (9)	Thorium-alizarin lake titration (9)
Hydrogen sulfide	Gas absorption (18)	Methylene blue method (18)

(b) The numbers following the reference standards in subsection (a) refer to the references contained in § 139.4 (relating to references).

The provisions of this § 139.32 adopted March 3, 1972, effective March 20, 1972, 2 Pa.B. 383; amended November 25, 1994, effective November 26, 1994, 24 Pa.B. 5899; amended September 4, 1998, effective September 5, 1998, 28 Pa.B. 4525. Immediately preceding text appears at serial pages (239783) to (239784).

Notation

Cross References

This section cited in 25 Pa. Code § 139.31 (relating to general); and 25 Pa. Code § 139.33 (relating to incorporation of Federal procedures).