Methods for the Determination of Hazardous Substances (MDHS) guidance

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1. Publicationshttps://www.hse.gov.uk/pubnS/index.htm
2. HSE Bookshttps://books.hse.gov.uk/
3. HSE Bookshttps://books.hse.gov.uk/
4. MDHS14/4 General methods for sampling and gravimetric analysis of respirable, thoracic and inhalable aerosolshttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs14-4.pdf
5. MDHS25/4 Organic isocyanates in air: Laboratory method with derivatisation in situ either on treated glass fibre filters or in solution using impingers with a treated back up filter in series, followed by high-performance liquid chromatography analysishttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs25-4.pdf
6. MDHS47/3 Determination of rubber process dust and rubber fume (measured as cyclohexane-soluble material) in air: Laboratory method using sample collection on filters, gravimetric determination and soxhlet extraction https://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs47-3.pdf
7. MDHS52/4 Hexavalent chromium in chromium plating mists Colorimetric field method using 1,5-diphenylcarbazide and spectrophotometry or colour comparatorhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs52-4.pdf
8. MDHS53/2 1,3-Butadiene in air. Laboratory method using pumped samplers, thermal desorption and gas chromatographyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs53-2.pdf
9. MDHS56/3 Hydrogen cyanide in air Laboratory method using ion-selective electrodehttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs56-3.pdf
10. MDHS57/2 Acrylamide in air Laboratory method using an impinger and analysis by high performance liquid chromatographyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs57-2.pdf
11. MDHS59/2 Machine-made fibres: Airborne number concentration and classification by phase contrast light microscopyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs59-2.pdf
12. MDHS62/2 Aromatic carboxylic acid anhydrides in airhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs62-2.pdf
13. MDHS63/2 - 1,3-Butadiene in air - Laboratory method using diffusive samplers, thermal desorption and gas chromatographyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs63-2.pdf
14. MDHS72 Volatile organic compounds in air Laboratory method using pumped solid sorbent tubes, thermal desorption and gas chromatographyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs72.pdf
15. MDHS75/2 Aromatic amines in air and on surfaces: Laboratory method using pumped acid coated filters, moistened swabs and HPLChttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs75-2.pdf
16. MDHS79/2 Peroxodisulphate salts in airhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs79-2.pdf
17. MDHS 80 Volatile organic compounds in air. Laboratory method using diffusive solid sorbent tubes, thermal desorption and gas chromatographyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs80.pdf
18. MDHS 82/2 The dust lamp. A simple tool for observing the presence of airborne particleshttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs82-2.pdf
19. MDHS 83/3 Resin acids in rosin (colophony) solder flux fume: Laboratory method using gas chromatographyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs83-3.pdf
20. MDHS 84/2 Measurement of oil mist from mineral oil-based metalworking fluidshttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs84-2.pdf
21. MDHS 85/2 Triglycidyl isocyanurate (and coating powders containing triglycidyl isocyanurate) in air: Laboratory method using sample collection on filters, liquid desorption and liquid chromatography https://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs85-2.pdf
22. MDHS 86/2 Hydrazine in airhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs86-2.pdf
23. MDHS 87 Fibres in air. Guidance on the discrimination between fibre types in samples of airbornehttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs87.pdf
24. MDHS 88 Volatile organic compounds in air. Laboratory method using diffusive samplers, solvent desorption and gas chromatographyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs88.pdf
25. MDHS 89 Dimethyl sulphate and diethyl sulphate in air. Laboratory method using thermal desorption, gas chromatography-mass spectrometryhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs89.pdf
26. MDHS 91/2 Metals and metalloids in workplace air by X-ray fluorescence spectrometryhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs91-2.pdf
27. MDHS 92/2 Azodicarbonamide in airhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs92-2.pdf
28. MDHS 94/2 Pesticides in air and on surfaces: Method for sampling and analysis of pesticides in air using pumped filters and sorbent tubes in series and on dermal surrogates using cotton pads and clothing. Analysis by gas chromatography on filters, liquid desorption and liquid chromatography https://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs94-2.pdf
29. MDHS 95/3 Measurement of personal exposure of metalworking machine operators to airborne water-mix metalworking fluidhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs95-3.pdf
30. MDHS 96 Volatile organic compounds in air - Laboratory method using pumped solid sorbent tubes, solvent desorption and gas chromatographyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs96.pdf
31. MDHS 98/3 Hydroquinone in airhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs98-3.pdf
32. MDHS101/2 - Crystalline silica in respirable airborne dustshttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs101.pdf
33. MDHS102 - Aldehydes in air - Laboratory method using high performance liquid chromatographyhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs102.pdf
34. MDHS104 - Volatile organic compounds in airhttps://www.hse.gov.uk/pubnS/mdhs/pdfs/mdhs104.pdf
35. HSE Bookshttps://books.hse.gov.uk/
36. Research reportshttps://www.hse.gov.uk/research/rrhtm/index.htm
37. Operational guidancehttps://www.hse.gov.uk/foi/internalops/index.htm
38. Other languageshttps://www.hse.gov.uk/languages/index.htm