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Table 1 Composition of X-ray developer, fixer and, replenisher liquids (TLVs based on Presidential Directive 90/1999)

From: Case report: hydroquinone and/or glutaraldehyde induced acute myeloid leukaemia?

INGREDIENTS CAS NUMBER Wt% TLV-TWA* TLV- STEL*
Acetic Acid 64-19-7 3–66 25 mg/m3
10 ppm
37 mg/m3
15 ppm
Aluminum Sulfate 10043-01-3 9,5   
Ammonium Thiosulfate 7783-18-8 40–60   
Boric acid 10043-35-3 1–5   
Diethylene Glycol 111-46-6 1–5   
Glutaraldehyde 111-30-8 30–40 0.8 mg/m3 0.8 mg/m3
Hydroquinone 123-31-9 6,2 2 mg/m3 4 mg/m3
1-phenyl-3-Pyrazolidinone 92-43-3 6,7   
Potassium Sulfite & metabisulfite 10117-38-1 & 16731-55-8 5–10   
Sodium Acetate 127-09-3 1–5   
Sodium Bromate 7789-38-0 0,5-1   
Sodium Sulfite 7757-83-7 5–10   
Sodium Tetraborate 1330-43-4 5–10 10 mg/m3  
Sulfuric acid 7664-93-9 4,6 1 mg/m3  
Water 7732-18-5 20–95   
  1. *TLV-TWA: Threshold Limit Value-Time Weighted Average (8-hour workshift)
  2. TLV-STEL: Threshold Limit Value-Short Term Exposure Limit (15-minute)