Chemistry reagents or solutions

C₆H₅CH₃ CAS Number: 108-88-3 Specific Gravity: 0.867 F.W.: 92.14 DOT: 3/II NFPA#: 2-3-0 Also meets ACS specifications

HCOOH CAS#: 64-18-6 F.W.: 46.03 Metals analysis reported on certificate in ppm.

Concentration 10,000 +/- 100 ug/ml Matrix: 20% Hydrochloric acid NIST Traceable

CHCl₃ CAS#: 67-66-3 F.W.: 119.38

Concentration 1,000 +/- 10 ug/ml Matrix: 20% Hydrochloric acid NIST Traceable

0.0 NTU, 4.49 mS/cm, pH 4.00 solution TEST Turbidity 0.0 NTU pH (@ 25&degC) 4.00 +/- 0.02 Conductivity 4.49 mS/cm @ 25&degC +/- 0.02

TEST Turbidity (on Hach 2100 N/AN meter) 4000 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric acid NIST Traceable

Concentration 10,000 +/- 100 ug/ml Matrix: &lt5% HNO3 NIST Traceable

TEST Turbidity (Turner C3) 100 NTU Absorbance at 455nm (50mm pathlength) Lot Number of Baseline Material

TEST Turbidity (LaMotte 2020e/TC3000e) 10 NTU Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

TEST Turbidity (HF Micro 100IR) 10 FNU Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material