Response Characteristics of PMP Compliant Condensation Particle Counters Toward Various Calibration Aerosols

Figures & data

FIG. 1. Set-up for determination of the counting efficiency of PMP compliant CPCs.

FIG. 2. Response characteristics of the evaluated CPC devices for GFG particles.

FIG. 3. Response characteristics of Grimm-2 for GFG, DNP, and APG (solid) particles.

FIG. 4. CPC response characteristics of CPC Grimm-1 for GFG particles coated with different amounts of n-hexadecane.

FIG. 5. CPC response characteristics of CPC Airmodus-1 for GFG particles coated with different amounts of n-hexadecane.

TABLE 1 Counting efficiency (CE) of TSI-1 for NaCl particles

Dp [nm]	CE [%]	σ [%]	Dp [nm]	CE [%]	σ [%]
13	0	0.1	20	20.2	2.1
14	0	0.1	21	21.9	1.3
15	0.1	0.1	22	32.3	1.7
16	0.3	0.1	23	41.6	1.8
17	1.7	0.2	40	83.2	2.5
18	6.6	1	42	86.5	2.6
19	9.6	0.9

FIG. 6. CPC response characteristics of TSI-2 and Grimm-2 for APG particles at two different VPR temperatures (41°C and 350°C).

FIG. 7. Cut-off curves of TSI-1 with H₂SO₄ particles and Grimm-2 with C₄₀ particles (generated in nitrogen and air/nitrogen mixture).

TABLE 2 Fraction of particles (F_PMP) with CE of soot and sulfuric acid determined with TSI-1

		FPMP for TSI-1
CMD [nm]	GSD	CE-GFG [%]	CE-H2SO4 [%]
7	1.35	0.2	0.8
8	1.35	0.7	2.3
9	1.35	1.6	4.9
10	1.35	3.0	9.0
52	1.95	87	87