Environmental & Water Standards

15 Mix nitrobenzene in n-hexane

BWQ9093-2016

15 Mix nitrobenzene in methanol

BWQ9091-2016

15 Mix nitrobenzenes in hexane:toluene

BWQ9092-2016

HNO₃ quality control in membrance

BWZ7378-2016

NH₄⁺ quality control in membrance

BWZ7377-2016

Na quality control in membrance

BWZ7376-2016

K quality control in membrance

BWZ7375-2016

4 Mix phthalates in toluene

BWQ9780-2016

4 Mix phthalates in n-hexane

BWQ9250-2016

Odorless paper for odor identification and assessment

BWZ7503-2016

Nitrite in seawater

BWZ7412-2016

CAS 7632-00-0

22 Mix metal standard solution

BWB2596-2016

2,4-Dinitrophenol in methanol

BWQ0692-2016

CAS 51-28-5

Fe、Mn Mixed standard solution(GB 11911-89)

BWB2660-2016

Greenish-yellow colorimetric solution GY2 (EP)

BWQ9700-2016

Platinum cobalt chromaticity in water

BWZ7387-2016

Diethyl disulfide in methanol

BWQ0008-2016

CAS 110-81-6

3 Mix nitrochlorobenzene in methanol

BWQ9123-2016

31 Mix n-alkane in n-hexane

BWQ9065-2016

34 Mix n-alkane in n-hexane

BWQ9067-2016

31 Mix n-alkanes in n-hexane

BWQ9066-2016

16 Mix n-alkane in n-Hexane

BWQ9064-2016

Oxidation-reduction potential ORP solution

BWZ7360-2016

Lead nitrate standard solution

BWZ7374-2016

CAS 10099-74-8