Page 1. Examination Report No Specimen No Date of preparation Date of the report No.

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1 Page 1 Examination Report No Commissioned by: BetonSeal GmbH & Co. KG, Cologne Name of specimen ControllRInnerseal Specimen No Specimen properties Impregnation liquid Specimen prepared by: BetonSeal GmbH & Co. KG, Cologne Date of preparation Status of the specimen In perfect condition Date of the report No. of pages 12 Aims of the report 1. Emission Analysis volatile organic combinations (VOC) formaldehyde Examination undertaken by: eco-institut GmbH, Cologne Page 2 Contents Examination Report 3 1 Emission Analysis Volatile organic combinations (VOC) 3 Measured 3 days after in the test chamber CMR-VOC3d 6 1,1,2 V0C3d/TVOC3d VVOC3d SVOC3d Formaldehyde3d 10 Assessor Evaluation 11 Appendix Page 3 Examination Report 1 Emissions analysis 1.1 Volatile organic compound Definition of Terms VOC (Volatile organic compounds) All individual substances in a concentration of mg/m3 within the retention range of C6 (n-hexane) to C16 (n-hexadecane). Substances see LCI list / AgBB (Committee for Healthrelated Evaluation of Building Products

2 TVOC (Total volatile organic compounds) CMR-VOC (carcinogenic, mutagenic, reprotoxic VOC) Sum of all the individual substances within the retention range C6 to C16 All individual substances in the following categories: Regulation (EG) No. 1272/2008: Categories carc. 1A and 1B; muta. 1A and 1B; Repr. 1A and 1B IARC: Group 1 and 2A DFG MAK-list Categories lll1 and lll2 VVOC (very volatile organic compounds) All individual substances with concentrations >/= 0.001mg/m3 within the retention range < C6 SVOC (semi-volatile organic compounds) Total SVOC C22 Identified and calibrated substances (Cid sub) Calculated substance-specifically Non-identified substances calculated as toluene equivalent SER LCI value R value All substances > mg/m3 within the retention range of > C16 (n-hexadecane)to > C22 docosane. Sum of all SVOC within the retention range of C16 to The spectrum and retention time corresponds with the calibrated control substance Presumed figure from the emission spectrum or rating according to the substance group. Specific Emissions Rate (see appendix) Lowest concentration of interest: calculating value for determining VOC as established by the AgBB The ratio is made up of the concentration and the LCI value for every substance proved present in the test chamber Page 4 List of volatile organic compounds: Aromatic Hydrocarbons Toluene Ethylbenzene p-xylene m-xylene o-xylene Isopropylbenzene n- propylbenzene 1,3,5 trimethylbenzene 1,2,4 trimethylbenzene 1,2,3 trimethylbenzene 2-ethyltoluene 1-isopropyl-4- methylbenzene 1,2,4,5 tetramethylbenzene

3 n-butylbezene 1,3 diisopropylbenzene 1,4 diisopropylbenzene Phenyloctane 1- phenyldecane 1- phenylundecane 4- phenylcyclohexene Styrene Phenylacetylene 2- phenylpropene Vinyltoluene Naphthalene Indene Benzene Aliphatic Compounds 2-methylpentane 3-methylpentane n-hexane Cyclohexane Methylcyclohexane 1,4 dimethylcyclohexane n-heptane n-octane n-nonane n-decane n-undecane n-dodecane n-tridecane n-tetradecan n-pentadecane n-hexadecane Methylcyclopentane Terpenes Delta-3-carene Alpha-pinene Beta-pinene Limonene Longifolene Caryophyllene Isolongifolene Alpha-phellandrene Myrcene Camphene alpha-terpinene Longipinene beta-caryphyllene beta-famesene alpha-bisabolene Alphatic Alcohols and Ethers 1-propanol

4 2-propanol tert-butanol 2-methyl-1-propanol 1-butanol 1-pentanol 1-hexanol Cyclohexanol 2-ethyl-1-hexanol 1-octanol 4-hydroxy-4-methyl-pentan-2-one 1-heptanol 1-nonanol 1-decanol Aromatic Alcohols (phenols) Phenol BHT (2,6-di-tert-butyl-4-methylphenol Benzyl alcohol Glycols, Glycol Ethers and Glycol Esters Propylenglycol (1-2 dihydroxypropane) Ethyleneglycol (Ethandiol) Ethylenglycolmonobutylether Dietheleneglycol Dietheleneglycol-monobutylether 2-phenoxyethanol Ethalene Carbonate 1-methoxy-2-propanol Texanol Glycolacidbutylester Butyldiglycolacetate Dipropeleneglycolmono-methylether 2-methoxyethanol 2-ethoxyethanol 2-propoxyethanol 2-methoxyethanol 2-hexoxyethanol 1,2-dimethoxyethane 1,2-Diethoxyethane 2-methoxyethylacetate 2-ethoxyethylacetate 2-butoxyethylacetate 2-(2-hexoxyethoxy)-ethanol 1-methoxy-2-(2-methoxy-ethoxy)-ethane Propyleneglycol-di-acetate Dipropyleneglycol Dipropyleneglycolmonomethyletheracetate Dipropyleneglycolmono-n-propylether Dipropyleneglycolmono-t-butylether 1,4-butaniol Tripropyleneglycolmonomethylether

5 Triethyleneglycoldimethylether 1,2-propyleneglycoldimethylether TXIB (Texanolisobutyrate) Ethyldiglycol Dipropyleneglycol-dimethylether Aldehydes Butanal Pentanal Hexanal Heptanal 2-ethylhexanal Octanal Nonanal Decanal 2-butenal 2-pentenal 2-hexenal 2-heptenal 2-octenal 2-nonenal 2-decenal 2-undecenal Furfural Glutaraldehyde Benzaldehyde Acetaldehyde 1,3 Propanal 1,3 Propenal 1,3 Isobutenal 3 Ketones Ethylmethylketone 3 3-methyl-2-butanone Methylisobutylketone Cyclopentanone Cyclohexanone Acetone 1,3 2-methylcyclopentanone 2-methylcyclohexanone Acetophenone 1-hydroxyacetone Acids Citric acid Propion acid Isobutyric acid Butyric acid Pivaline acid n-valiriane acid n-caprone acid n-heptane acid n-octane acid 2-ethylhexane acid

6 Esters and lactones Methylacetate Ethylacetate Vynilacetate Isopropylacetate Propylacetate 2-methoxy-1-methylethylacetate n-butylformiate Methylmethacrylate Isobutylacetate 1-butylacetate 2-ethylhexylacetate Methylacrylate Ethylacrylate n-butylacrylate 2-ethylhexylacrylate Adipine acid dimethylester Fumaric acid dimethylester Amber acid dimethylester Glutaric acid dimethylester Hexanedioldiacylate Maleic acid dimethylester Butyrolacetone Dimethylphthalate Texanol Chlorinated carbon substances Tetrachlorethene trichloethane Trichlorethene 1,4-Dichlorbenzene Others 1.4-dioxane Caprolactam N-methyl-2-pyrrolidon Octamethylcycloetrasiloxane Methenamine 2-butanonoxim Tributylphosphate Triethylphosphate 5-chlor-2-methyl-4-isothiazoline-3-one 2-methyl-4-isothiazine-3-one (MIT) Triethylamine Tetrahydrofurane (THF) 1-decene 1-octene 2-pentylfurane Propylene carbonate Isophorone Tetramethylsuccinonitril Dimethylformamide (DMF)

7 1 VVOC 2 SVOC 3 Analysis DIN ISO Page 5 Examination Methods Preparation of the specimen DIN EN ISO Preparation: Masking the back of the specimen Masking the edges Relationship between edges and surfaces Placement Measurements The lime/sandstone blocks were applied with 2 coats according to manufacturer's instructions. No Yes n/a On the surface of the chamber 5 x [24 x 11] cm Test chamber specifications DIN EN ISO Volume of the chamber Temperature m3 23 degrees C Relative air moisture 50% Air pressure Air normal purified Rate of air exchange 0.5 h-1 Air current velocity Placement Specific airflow rate Air sample 0.3 m/s 1 m2/m3 0.5 m3/m2*h Taken after 3 days in the test chamber Analysis DIN ISO DIN ISO

8 Determination limit 2ug//m Page 6 Measurements taken after 3 days in the test chamber CMR-VOC3d Aim of the examination Carcinogenic, mutagenic, reprotoxic organic compounds (CMR-VOC), test chamber, air sample taken 3 days after the beginning of the test. Results No CMR-VOC were detectable after 3 days in the test chamber Page VOC3d/TVOC3d Aim of the examination Volatile organic compounds (VOC), test chamber, air sample taken 3 days after the beginning of the test. Results No. Substance CAS No. Concentration (in the test Chamber VOC3d: identified and calibrated substances according to the LCI list / AgBB, calculated substancespecifically (Cid sub) 6 Glycol, glycol ether and glycol ester 6-12 Dipropyleneglycolmono-methylether Aldehydes 7-8 Decanal VOC3d Further identified and calibrated substances in addition to the LCI list/agbb, calculated substancespecifically (C id sub) VOC3d Non-identified substances, calculated as toluene equivalent (C ni tot) Siloxane compound 2

9 Butoxypropanol 4 Total volatile organic compounds Concentration: 10 SER3: 12 Page 8 VVOC Aim of the examination (See above) Page 9 SVOC (See above) Page Formaldehyde3d Aim of the examination: Formaldehyde, test chamber, air sample taken after 3 days. Examination methods: Preparation of the specimen: DIN EN 717-1iA (see 1.1 Volatile organic compounds) Test chamber specifications: DIN EN with the following deviations: - no determination of the concentration equivalents; formaldehyde emission was measured as stated above

10 - size of test chamber: see test chamber volume - relative humidity: 50% - air exchange rate and placement: see 1.1 volatile organic compounds Test chamber emissions parameters: see 1.1 volatile organic compounds Air sample: taken 3 days after placement Analysis:: DIN EN Determination limit: 3 ug/m3= 0.003ppm Results: Substance: formaldehyde Concentration (air in test chamber) ug/m3: <3 Concentration (air in test chamber) ppm: <0.003 Cologne, 17 November Page 11 Assessor evaluation Emission measurements were taken in a test chamber on a specimen of ControllRInnerseal provided by BetonSeal GmbH & Co. KG in Cologne. The results, documented in the examination report. led to the assessment below. The examination is based on the professional guidelines set by the office of Dr Zwiener relating to health and safety standards drawn up by the town council of the City of Cologne for building materials and construction projects. Carcinogenic, mutagenic and reprotoxic compounds (CMR-VOC) were not detectable 3 days after placement in the test chamber. The total volatile organic compounds (TVOC) 3 days after placement in the test chamber amounted to 10 ug/m3 and well below the reference level of 300 ug//m3. The total VOC without LCI 3 days after placement in the test chamber amounted to 6 ug/m3 and was well below the reference level of 100 ug/m3. VOC according to regulation (EG) No. 1272/2008: category carc.2, muta.2, repr.2; TRGS 905: C3, M3, R3; IARC: Group 2B; DFG MAK list: category lll3 not detectable 3 days after placement in the test chamber. Semivolatile organic compounds (SVOC) were not detectable 3 days after placement in the test chamber. The R value amounted to which is well below the reference level of 1.0. No formaldehyde was detectable 3 days after placement in the test chamber.

11 - Page 12 Appendix Explanatory notes to the Specific Emissions Rate (SER) Rates of emission are measured under defined physical conditions (temperature, relative air humidity, placement, air exchange rate etc...). Such test chamber results are only directly comparable if the experiments are conducted under the same conditions. If variations in the physical conditions only affect the air exchange rate and/or the placement, results from SER (specific emissions rates) can be used as reference. The SER measures how much VOC is released from a given unit of specimen per hour. The SER can be calculated for each individual component of VOC proved to be present. This calculation is based in the findings of the examination report with reference to the formulae below: The following can be taken as unit of specimen: L = length unit (m) A = area unit (m2) V = volume unit (m3) U = (complete) unit emissions relating to the length emissions relating to the area emissions relating to the volume emissions relating to the complete unit This means we can distinguish 4 dimensions of SER: Length specific Area specific Volume specific Unit specific SER(l) in ug/m h SER(a) in ug/m2 h SER(v) in ug/m3 h SER(u) in ug/n h The SER therefore represents a product specific rate that describes the mass of VOC emitted from the product per unit of time at a given interval after the beginning of the test. SER = q. C q C specific air flow rate (quotient from the air exchange rate and the placement) Concentration of the measured substances The results can be quoted in microgrammes (ug) or milligrammes (mg). 1mg = 1000 ug

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