RAL Gütezeichen für Kerzen

Quality-certified

raw materials

RAL Gütezeichen für Kerzen

A candle must burn as shown — not this way!

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raw materials

Quality-certified

RAL Gütezeichen für Kerzen

The

Candlelight dinner

RAL Quality Mark for CandlesRead more

is a Classic for lovers

dinner

The Candlelight

RAL Gütezeichen für Kerzen

Watch out for the

Quality Mark for Candles

RAL Quality Mark for CandlesRead more

Rohstoffe

Quality Mark for Candles

Watch out for the

non-drip

no soot or smoke

quality-certified raw materials

Extract from the Specific Quality Assurance and Test Specifications for Household Candles, Taper Candles, Pillar Candles and Other Candles RAL-GZ 041/1

1-1 Scope

These specific quality assurance and test specifications apply to candles, regardless of the surface structure for product variants such as advent candles, altar candles, tree candles, birthday candles, household candles, votive candles, pyramid candles, miniature candles, taper candles, rod candles or pillar candles.

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Within this scope, the above products need to meet the requirements of the Quality Mark for Candles.

1-2 Quality specifications

1-2.1 Visual and technical requirements

Optische und technische Anforderungen

1-2.1.1 Appearance/wick arrangement

The wick must be centred. Exception: multi-wick candles.

The surface of the candle must be free of bubbles, cracks, chips and damage when viewed without technical aids. An exception to this rule is permitted only if these features are decorative in nature.

The candle has the required shade and intensity of colour.

Aussehen / Dochtanordnung

1-2.1.2 Burning properties

After lighting, the candle must show a luminous, steady flame and gradually form a rim that surrounds the burn pool.

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After lighting, the candle must show a luminous, steady flame and gradually form a rim that surrounds the burn pool.

Also, the wick needs to be moderately curved as the candle burns down (see Section 1-3.3),

  • The candle must not drip (see Section 1-3.4) and
  • The flame must burn without producing visible soot (see Section 1-3.5).

For technical reasons, the assessment of burning properties with regard to compliance with these requirements can only be carried out on pillar candles with a diameter of 31 to 60 mm up to a residual height of 30 mm; on pillar candles with a diameter of more than 60 mm only up to a residual height of 40 mm, and on altar candles only up to a residual height of 80 mm.

After the flame has been extinguished, the tip of the wick normally continues to glow for some time. This is associated with some release of smoke. This process should be complete within 15 seconds in candles of up to 30 mm diameter. In the case of candles with a diameter of more than 30 mm, it is permissible for the flat wick to smoke for 20 seconds, but the wick must never completely burn up (this also applies to round wicks), such that it can be easily relit and the candle will continue to burn properly.

Brennverhalten

If the candle’s burning time is stated on the packaging, this must be achieved (see Section 1-3.6).

1-3 Test specifications

1-3.1 Spatial conditions and clearances during sample burning

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The temperature of the test room must be between 20°C and 25°C to test burning. The candles must be positioned vertically and far enough apart from each other to ensure that heat is not noticeably transferred from candle to candle. The exact clearances will depend on the candle format and the candles must be well protected from draughts.

1-3.2 Burning cycles

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Sample combustion of the test samples must be carried out in different burning cycles according to the size of the candle. Burning cycle 1 for tree candles, miniature candles, egg candles and other types of candle weighing up to 40 grams:

Burning cycle 1 for tree candles, miniature candles, egg candles and other types of candle weighing up to 40 grams:

  • Cycle 1: Continuous burning down to approx. 20 mm from the base of the candle

Burning cycle 2 and 3 for candles weighing more than 40 grams and measuring up to 30 mm in diameter:

  • Cycle 2: Continuous burning down to approx. 20 mm from the base of the candle
  • Cycle 3: 2 h burning, at least 1 h break, 2 h burning

Burning cycle 4 and 5 for candles measuring 31 mm to 60 mm in diameter (changing from day to day):

  • Cycle 4: Continuous burning for 4 h
  • Cycle 5: At least 4 h of burning, at least 1 h break, at least 4 h of burning

Burning cycle 6 for candles larger than 60 mm in diameter:

  • Cycle 6:
    • 4 h of burning, at least 1 h break
    • 4 h of burning, at least 1 h break
    • 4 h of burning, at least 1 h break
    • 4 h of burning

1-3.3 Wick properties

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The wick protrudes straight out of the candle and should then bend evenly to the outside edge of the flame during burning. The tip of the wick should burn gradually there, where the flame temperature is at its highest, until it is fully incinerated.

This means that slight curving of the wick as shown in figure 2 is ideal and curving of the wick as shown in figure 3 is still good.

Dochtstand

The behaviour of wick during burning is assessed visually.

Assessment

Wick curves as shown in figure 2 or 3 requirement met
Wick deviates significantly from figure 2 or 3requirement not met
Tropffestigkeit

1-3.4 Resistance to dripping

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Dripping refers to the fuel flowing out of the candle’s burn pool. A candle is described as drip-resistant if this is prevented by the rim produced.

A small amount of wax flowing out is tolerable for candles measuring up to 30 mm under the following conditions:

When the candle is relit, the wick is able to reach its full capillary action (i.e. drawing melted wax to the flame) again only after a few minutes. Consequently, a few drops of wax may flow out temporarily during this phase. This phenomenon should not be seen as insufficient drip resistance. Drip resistance is assessed visually.

Assessment

Rim prevents wax flowing outrequirement met
Molten wax flows off the candlerequirement not met
Rußverhalten / Nachrauchen
Rußverhalten / Nachrauchen

1-3.5 Soot properties/smoking

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For chemical and physical reasons, it is not possible for a candle to burn without emitting any smoke at all, especially when burning starts and immediately after the flame goes out. Soot emission should, however, be minimised – primarily by using the optimum combination of candle material and wick—so that low-soot burning occurs.

Assessment of soot properties according to two criteria

a) Visual

No visible soot emissionrequirement met
Candle emits sooty smokerequirement not met

b) As described in the test procedure set out in Section 8 of EN 15426, the soot properties of candles (with the exception of ball candles, egg candles, candles with special shapes and candles with a diameter of > 70 mm) must also be assessed according to the following criteria:

A soot index of 1.0 must not be exceeded per hour of burning time (visible soot emission can be expected from an hourly soot index of approx. 1.2).

The candle must fulfil both criteria.

Assessment of smoking in candles up to 30 mm in diameter

On average, a maximum of 15 secondsrequirement met
On average, more than 15 seconds requirement not met
Bewertung des Nachrauchen

Evaluation of smoking in flat-wick candles over 30 mm in diameter

On average, a maximum of 20 secondsrequirement met
On average, more than 20 secondsrequirement not met

1-3.6 Assessment of adherence to required dimensions and achievement of burning time

Einhaltung der Abmessungen und Erreichen der Brenndauer Bewertung

Assessment

a) Dimensions:

On average, conforms to dimensions requirement met
On average, does not conform to dimensions requirement not met

Maximum permissible negative tolerance: 2%, but not less than 1 mm, applicable to diameter and length.

Brennverhalten

Assessment

b) Burning time:

On average, achieves burning time requirement met
On average, does not achieve burning time requirement not met

If “approx.” or “±” is specified, a maximum negative tolerance of 10% is permissible.

1-4 Overall assessment

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Overall assessment of the candle is carried out on the basis of the inspection reports for internal and external quality assurance (assessment sheets), specified by the Quality Association for Candles.

The modalities for quality assurance and modification are set out in the General Quality Assurance and Test Specifications.

In the case of a positive overall assessment, the following quality mark is awarded with the addenda referred to in Section 7:

Gesamtbeurteilung
Test Report
Gesamtbeurteilung