Substance content & calculation examples

In the BASTA system, no content information is generally registered, with the exception of a limited number of substances covered by declaration with information requirements.

In order to assess whether the criteria are met, the connected company needs to have knowledge of the product's ingredients. The company can ensure this by having complete knowledge of the content itself or by obtaining guarantees from its sub-suppliers via sub-supplier declarations.

Companies that register articles within the BASTA system must make an assessment showing the constituent substances and whether they fulfill the criteria or not. BASTA has developed a template that can be used for assessment, it can be downloaded from the document page.

Information about content is only presented in BASTA audits when the assessment and documentation are reviewed, read more about this in BASTA's criteria document.

Download the criteria document

Important to know

When can articles not be registered?

If there is no information on which substances are included in the article or if there is no basis to determine whether a substance meets the criteria, the product may not be registered within the BASTA system. This applies to both chemical products and materials included in articles.

Aid

Assessment template

As an aid to the assessment, there is a template for assessment. You can also use your own assessment layouts, as long as they are clear and cover all criteria and refer to documentation that confirms your conclusions, e.g. sub-supplier declaration or safety data sheet.

What does the article contain?

Approaches to identify article content.

For products where the company itself has full knowledge of content, it is sufficient documentation for assessment

It is important that the documentation covers 100% of the article's content.

If there are safety data sheets for the product or contained substances issued in accordance with Council Regulation (EG) No 1907/2006, Title IV, they can serve as a basis for assessment.

If it is not clear from the safety data sheet that the product meets the criteria, for example because the reported substance content is not complete, the person who performs the registration shall request a separate "Sub supplier declaration" according to a template specified by BASTAonline AB or equivalent, which shows that the product meets the criteria. The person who registers products in the BASTA system must also ensure that the sub supplier can answer questions about the product during a BASTA audit.

If a construction product declaration (eBVD) exists for the product or constituent substances, it can serve as a basis for assessment. However, additional information may be needed.

If it is not clear from the construction product declaration that the product fulfils the criteria, for example because the reported substance
content is not complete, the registrant must request a separate ”Sub supplier declaration” from his subcontractor according to
the template provided by BASTAonline AB or equivalent, which shows that the product fulfils the criteria. The person registering in the
BASTA system must also ensure that the subcontractor can answer questions about the product in a BASTA audit.

For registration of products that the company does not manufacture itself and where the manufacturer does not provide complete accounting of content, the person registering must have a signed "Sub supplier declaration", according to a template specified by BASTAonline AB or equivalent.

The person who registers in the BASTA system must also ensure that the declaration received meets BASTA's criteria and that the subcontractor can answer questions about their declaration during a BASTA audit.

BASTA has produced a template for a sub supplier declaration that you can use, it can be downloaded on the documents page.

Document

If a product, or subcomponent of a product, already is registered in the BASTA system, reference to the registration can be used as a basis for assessment. However, the person who re-registers the product must obtain written confirmation from the company that originally registered the product which includes the following:

  • That the registered product is the same as the one to be registered
  • That if the registration status/criteria fulfilment changes for the registered product, this must be notified to the person who further registers the product

Support for assessment

Do you want to get help with assessments? The list on the right contains organizations that can support you with assessment compilation. 

External consultants

Explanation

Calculation of the concentration of a substance

The concentrations of constituent substances are calculated based on the content of the product, as it is delivered to the construction site or equivalent. Chemicals that have been used in the manufacture but are not retained in the delivered product shall not be taken into account.

With product we mean any of the three options below.

1. Chemical products

A chemical product consists of a substance or mixture consisting of two or more substances. For chemical products, the content of constituent substances in the product is calculated based on the content of the product when it is delivered to the construction site.

2. Articles

An article is, according to the definition of REACH, Chapter 2 Article 3, an object which during production is given a special shape, surface or design which determines its function to a greater degree than does its chemical composition. For articles, the content of constituent substances in the article is calculated based on the content of the article when it is delivered to the construction site.

3. Assembled articles

An assembled article is an article that has been assembled together by two or more articles, see definition of an article. For assembled articles, the assessment of compliance with the criteria shall be based on the content of the substance(s) in each individual article. The assessment of compliance shall not be based on the content of the assembled article, unless expressed under an individual criterion.

Calculation example

Three examples of how to calculate substance levels in articles.

A painted article consists of
  • 95 weight% wood
  • 5 weight-% dry paint layer/film
The paint contains

In liquid form, according to the Safety Data Sheet:

  • 40 weight-% solvent
  • 28.5 weight-% binding agent
  • 30 weight-% pigments
  • 1.5 weight-% stabilizing agent

The stabilizing agent has unwanted properties that do not meet the criteria.

Calculation
  • The solvent evaporates during the drying process and of the original weight is retained:
    100 – 40 = 60 %
  • The stabilizing agent percentage of the dried paint coat/film is:
    (1.5/60) x 100= 0.025 x 100 = 2.5%
  • The weight of paint layer/film was 5 weight % of the product.
    (2.5 x 5 ) / 100 = 12.5/100 = 0.125%
Answer

The unwanted substance is 0.125% of the total product.

The article contains
  • Wood 98 %
  • Paint 2 %
Information found in the Safety Data Sheet:
  • Aliphatic naphtha, hydrotreated heavy, 64742-48-9: 30-50 %
  • Cobalt carboxylate, 13586-82-8: <0.3 %
  • Diuron, 330-54-1: <0.25%
  • Titanium dioxide, 13463-67-7: 20-30%
  • Acrylate resin: 62887-06-3: 30-50%
Concentration in the dried paint layer?

The solid content specified at 55%. If the solid content is not specified, you are expected to make a conservative calculation to be sure not to underestimate the risk. In this case, one would therefore calculate 100-30 = 70% solid content.

Calculation
  • Cobalt carboxylate
    (0.3/55) x 100 = 0.0055 x 100 = 0.55%
  • Diuron
    (0.25/55) x 100 = 0.045 x 100 = 0.45%
  • Titanium dioxide
    (30/55) x 100 = 0.545 x 100 = 54,5%
  • Acrylate resin
    (50/55) x 100 = 0,909 x 100 = 90,9%
Answer

Cobalt carboxylate 0.55%, Diuron 0.45%, Titanium dioxide 54,5%, Acrylate resin 90,9%.

If one adds up all the calculated substances the resulting sum will be more than 100%. The reason for this is that we have consistently added up/entered the highest ratios of the range. However, if there is accurate information on the substance content available this should be used instead.

Concentration in the total article?

The dried layer of paint is 2 weight-% of the total article..

Calculation
  • Cobolt carboxylate
    0,55 x 2 / 100 = 0,011%
  • Diuron
    0,45 x 2 / 100  = 0,009%
  • Titanium dioxide
    54,5 x 2 / 100 = 1,09%
  • Acrylate resin
    90,9 x 2 /100 =  = 1,82%
Answer

Cobolt carboxylate 0,011%, Diuron 0,009%, Titanium dioxide 1,09%, Acrylate resin 1,82%

Content and classification of constituent substances according to the safety data sheet
  • n-Paraffin, 93924-07-3, 60-100 %
    Klassificering – H304 Boiling point range 175-260 °C
  • Linseed , 8001-26-1, 30-40 %, Non-classified
  • 3-Iodine-2-propynyl butyl carbamate, 55406-53-6, <0,5 %, M=10
    Classification – H302, H317, H318, H331, H372, H400, H410
  • Sodium hydroxide, 1310-73-2, <0,5 %, 
    Classification – H314
  • 1,2- Benzisothiazol-3(2H)-one, 2634-33-5, 0,03-0,04 %, M=1, LC50 = 1,6 mg/l
    Classification – H302, H315, H317, H318, H400
Review of substances and criteria:
  • n-Paraffin
    • Depending on H304, falls under the criteria:
      • H8.D: Aspiration toxicity - Category 1 (H304) – Applies only to chemical products
  • Linseed oil
    • not classified and thus does not need to be taken into account in the assessment
  • 3-Iodine-2-propynyl butyl carbamate 
    • Depending on H317, falls under the criteria:
      • H7.C: Skin sensitisers - Category 1A (H317)
      • H7.D: Skin sensitisers - Category 1 and 1B (H317)
  • Depending on H400, falls under the criteria:
      • H10.A: Hazardous to the aquatic environment – Category Acute 1 (H400)
      • H10.C: Hazardous to the aquatic environment – Category Chronic 4 (H413)
    • Depending on H410, falls under the criteria:
      • H10.B: Hazardous to the aquatic environment – Category Chronic 1 or 2, (H410) or (H411)
    • Other H-phrases are not covered by the criteria
  • Sodium hydroxide
    • H314 is not covered by the criteria.
  • 1,2- Benzisothiazol-3(2H)-one
    • Depending on H317, falls under the criteria:
      • H7.C: Skin sensitisers - Category 1A (H317)
      • H7.D: Skin sensitisers - Category 1 and 1B (H317)
    • Depending on H400, falls under the criteria:
      • H10.A: Hazardous to the aquatic environment – Category Acute 1 (H400)
      • H10.C: Hazardous to the aquatic environment – Category Chronic 4 (H413)
    • Other H-phrases are not covered by the criteria.
Assessment of compliance with criteria
Criterion H7.D

3-Iodine-2-propynyl butyl carbamate

For H7. D the limit is 1%. The product contains <0.5%, which means that the content is OK

1,2- Benzisothiazol-3(2H)-one

For H7.D the limit is 1%, but 1,2- Benzisothiazol-3(2H)-one has a CLP specific concentration limit of 0,05 %. This means that this concentration limit shall be used as the concentration limit. The product contains <0.05%, which means that the content is OK.

Criterion H8.D

Criterion H8. D means that the chemical product as a whole must not be classified as H304 in order to meet the criterion.

Criterion H10.A

Summation för 3-Iodine-2-propynyl butyl carbamate and 1,2- Benzisothiazol-3(2H)-one

The summation shall be based on substances meeting the criteria for the hazard class - ”Hazardous to the aquatic environment – Category: Acute 1” (H400) if its concentration is greater than or equal to 0,1 divided by its M-factor (defined according to CLP), see below for further explanation.

  • M-factor = 1 means that H400 substances should be included if their concentration ≥0.1%
  • M-factor = 10 means that H400 substances should be included if their concentration ≥0.01%
  • M-factor = 100 means that H400 substances should be included if their concentration ≥0,001%

3-Iodine-2-propynyl butyl carbamate : M=10 Concentration=0,5% - To be taken into account

1,2- Benzisothiazol-3(2H)-one: M=1 Concentration=0,04% - Not to be considered

  • Summation 0,5*10=5 which is less than 25

The product meets the criterion

Criterion H10.B

Summation for 3-Iodine-2-propynyl butyl carbamate

The summation shall be based on substances meeting the criteria for the hazard class " Hazardous to the aquatic environment — Category: Chronic 1 or 2" (H410 or H411). 

Substances classified H410 should be considered if their concentration is greater than or equal to 0,1 divided by its M-factor (defined according to CLP), see below for further explanation. Substances classified H411 shall be considered if their concentration is equal to or greater than 1%.

  • M-factor = 1 means that H410 substances should be included if their concentration ≥0.1%
  • M-factor = 10 means that H410 substances should be included if their concentration ≥0.01%
  • M-factor = 100 means that H410 substances should be included if their concentration ≥0.001%

3-Iodine-2-propynyl butyl carbamate: M=10 Concentration =0,5% - To be taken into account

  • Summation 0,5*10=5 which is less than 25

The product meets the criterion

Criterion H10.C

Summation för 3-Iodine-2-propynyl butyl carbamate and 1,2- Benzisothiazol-3(2H)-one

The summarised concentration of substances meeting the criteria for the hazard class “Hazardous to the aquatic environment – Category: Chronic 1, 2, 3 or 4” (H410, H411, H412 or H413).

3-Iodine-2-propynyl butyl carbamate: Concentration =0,5%

1,2- Benzisothiazol-3(2H)-one: Concentration =0,04%

  • Summation: 0,5+0,04 = 0,54 which is less than 25

The product meets the criterion

Summary assessment

The article contains sensitising substances (criteria H7.C and H7.D) but in concentrations below the concentration limits.

The article contains aspiration toxic substances (criterion H8.D). The criterion is not a substance criterion but applies to the chemical product.

The article contains environmentally hazardous substances (H10.A, H10.B, and H10.C) but in concentrations below the concentration limit.

Conclusion

The article passes the criteria.

For criterion H8.D applies to:

If the chemical article as a whole is not classified as H304, the article can be registered in the grade BASTA

If the chemical product as a whole is classified as H304, the article can instead be registered in the grade BETA