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BS EN 16811-1:2016 Winter service equipment and products. De-icing agents - Sodium chloride. Requirements and test methods >
BS EN 16811-1:2016 Winter service equipment and products. De-icing agents - Sodium chloride. Requirements and test methods, 2016
- Contents Page
- European foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Requirements for sodium chloride [Go to Page]
- Table 1 — Chemical requirements for sodium chloride [Go to Page]
- Table 2 — Moisture limits for sodium chloride [Go to Page]
- Table 3 — Sieve analysis for sodium chloride [Go to Page]
- Table 4 — General requirements for sodium chloride [Go to Page]
- 5 Requirements for brine [Go to Page]
- Table 5 — Chemical requirements for brine [Go to Page]
- Table 6 — General requirements for brine [Go to Page]
- 6 Sampling
- 7 Test methods [Go to Page]
- Annex A (normative) Product descriptions
- A.1 Product description for sodium chloride
- A.2 Product description for brine
- Annex B (normative) Sampling
- B.1 Solid sodium chloride
- B.1.1 Package shipments
- B.1.2 Bulk shipments
- B.2 Brine
- B.3 Labelling and distribution of samples
- B.4 Sampling report
- Annex C (normative) Analytical methods
- C.1 Determination of sodium chloride (potentiometric method)
- C.1.1 Scope and field of application
- C.1.2 Principle
- C.1.3 Reagents
- C.1.4 Apparatus
- Table C.1 — Conditions for titration
- C.1.5 Sampling and samples
- C.1.6 Procedure
- C.1.6.1 Test portion
- C.1.6.2 Test solution
- C.1.6.3 Determination
- C.1.6.3.1 Apparatus setting
- C.1.6.3.2 Measurement
- C.1.7 Expression of results
- C.1.7.1 Method of calculation
- C.1.7.2 Repeatability and reproducibility (informative)
- Table C.2 — Repeatability and reproducibility
- C.2 Determination of aluminium, arsenic, cadmium, calcium, chromium, cobalt, copper, lead, magnesium, nickel, sulfate, zinc (inductively coupled plasma optical emission spectrometry (ICP/OES))
- C.2.1 General
- Table C.3 — Limit of detection (LOD)
- C.2.2 Principle
- C.2.3 Reagents
- C.2.4 Apparatus (informative)
- Table C.4 — Typical operating conditions for most ICP spectrometers0F )
- C.2.5 Sampling and samples
- C.2.6 Procedure
- C.2.6.1 Test portion
- C.2.6.2 Test sample solution
- C.2.6.3 Calibration and verification solutions (informative)
- Table C.5 — Calibration solutions
- C.2.6.4 Determination
- C.2.6.4.1 Settings of the apparatus (informative)
- Table C.6 — Typical wavelength per element
- C.2.6.4.2 Spectrometric measurements
- C.2.7 Expression of results
- C.2.7.1 Evaluation
- C.2.7.2 Calculation
- Table C.7 — Report of results
- C.2.7.3 Repeatability and reproducibility (informative)
- Table C.8 — Repeatability and reproducibility
- C.2.8 Remarks
- C.3 Determination of total mercury (cold vapour atomic absorption spectrometry)
- C.3.1 General
- C.3.2 Principle
- C.3.3 Reagents
- C.3.4 Apparatus (informative)
- C.3.5 Procedure
- C.3.5.1 Test portion
- C.3.5.2 Test solution
- C.3.5.3 Blank test solution
- C.3.5.4 Calibration solutions (informative)
- Table C.9 — Calibration solutions for mercury
- C.3.5.5 Determination
- C.3.5.5.1 Mineralization
- C.3.5.5.2 Preparation of the apparatus
- C.3.5.5.3 Spectrometric measurements
- C.3.5.5.4 Calibration curve
- C.3.6 Expression of results
- C.3.6.1 Calculation
- C.3.6.2 Repeatability and reproducibility (informative)
- Table C.10 — Repeatability and reproducibility
- Figure C.1 — Determination of mercury by atomic absorption spectrometry – Typical apparatus
- C.4 Determination of anti-caking agent (molecular absorption spectrometry)
- C.4.1 General
- C.4.2 Principle
- C.4.3 Reagents
- C.4.3.1 Sodium chloride, ferrocyanide-free.
- C.4.3.2 Sulphuric acid, c(H2SO4) approximately 0,5 mol/l.
- C.4.3.3 Potassium hydroxide solution, c(KOH) approximately 0,05 mol/l.
- C.4.3.4 Fe(II) - Fe(III) solution:
- C.4.3.5 Potassium hexacyanoferrate (II) stock solution I, c(K4[Fe(CN)6]・3H20) = 1,000 g/l.
- C.4.3.6 Potassium hexacyanoferrate (II) stock solution II, c(K4[Fe(CN)6]・3H20) = 50,0 mg/l.
- C.4.4 Apparatus
- C.4.4.1 Spectrophotometer, or
- C.4.4.2 Photocolourimeter, fitted with a filter ensuring maximum transmission between 690 nm and 710 nm.
- C.4.4.3 Membrane filter about 50 mm diameter, 0,3 μm maximum porosity
- C.4.5 Sampling and samples
- C.4.6 Procedure
- C.4.6.1 Test portion
- C.4.6.2 Test solution
- C.4.6.3 Blank test solution
- C.4.6.4 Calibration
- C.4.6.4.1 Calibration solutions (informative)
- Table C.11 — Calibration solutions
- C.4.6.4.2 Colour development
- C.4.6.4.3 Photometric measurements
- C.4.6.4.4 Calibration curve
- C.4.6.5 Determination
- C.4.6.5.1 Direct method
- C.4.6.5.2 Filtration method
- C.4.6.5.3 Photometric measurements
- C.4.7 Expression of results
- C.4.7.1 Evaluation
- C.4.7.2 Repeatability and reproducibility (informative)
- Table C.12 — Repeatability and reproducibility
- Bibliography [Go to Page]