1 Note concerning Annex XVII of REACH: Restrictions
SAMSON AKTIENGESELLSCHAFT is working intensively on reducing the NMP concentrations in the affected articles and looking
for materials to replace them.
The current version of the REACH annex (Entry 71) specifies the following for NMP:
1. Shall not be placed on the market as a substance on its own or in mixtures in a concentration equal to or greater than 0.3 %after 9 May 2020 unless manufacturers, importers and downstream users have included in the relevant chemical safety reports
and safety data sheets, Derived No-Effect Levels (DNELs) relating to exposure of workers of 14.4 mg/m³ for exposure by inhalation and 4.8 mg/kg/day for dermal exposure.
2. Shall not be manufactured, or used, as a substance on its own or in mixtures in a concentration equal to or greater than 0.3 %after 9 May 2020 unless manufacturers and downstream users take the appropriate risk management measures and provide
the appropriate operational conditions to ensure that exposure of workers is below the DNELs specified in paragraph 1.

2 List of individual articlesFollowing the judgment by the Court of Justice of the European Union concerning case C-106/14 of 16 October 2015, "Once anarticle, always an article" (O5A), we calculate the substance on the fabric as follows:
Reinforcing fabric (aramid fibers)
As a previously isolated article, the reinforcing fabric that we use contains the following chemical substance: NMP, 1-methyl-2pyrrolidone in average concentrations of >2 % and ≤3 %–CAS no.: 872-50-4–EINECS no.: 212-828-1

There is no reason to fear a risk of damage to the developing embryo or foetus when the MAK (max. concentration at theworkplace) and BAT (biological tolerance at the workplace) values are observed. If viewed as an individual substance, i.e. if it is
not incorporated into materials, this substance is classified according to Regulation 1272/2008 (source: u http://gestis.itrust.de)as follows:• Irritation to the eyes, airways and skin
• Reproductive toxicity
There is no reason to fear a risk of damage to the developing embryo or foetus when the MAK (max. concentration at theworkplace) and BAT (biological tolerance at the workplace) values are observed.
– 20 ml/m³– 82 mg/m³– Peak limitation: excursion factor 2– Duration 15 min, mean; 4 times per shift; interval 1 h– Category II: substances with systemic effects– BAT/German Biological Exposure Indices: parameters of 5-hydroxy-N-methyl-2-pyrrolidone– Limit: 150 mg/l

2R 0002 EN

3 Information on safe handling
The diaphragms are already installed in the valves delivered by SAMSON or are supplied as spare parts to replace defectivediaphragms. The substance is contained in the diaphragm's fabric. The largest portion of the diaphragm's fabric is covered by arubber coating. As a result, hardly any direct contact with the substance will occur under normal, foreseeable conditions and whenused as intended. Nevertheless, contact with the fabric could occur when handling the diaphragm directly.

3.1 Occupational health and safety
Î To prevent contact with the fabric and ensure the safe handling of the article, observe the following instructions on safe use (seesection 4 to section 6).
Information below: as of 3 March 2020
EU occupational exposure limits (EU OEL) according to Directive 2009/161/EU
Indicative occupational exposure limit value of the European Union:
A national indicative occupational exposure limit must be established.
––

Eight-hour time-weighted average (TWA):
Short-term exposure limit (STEL):

40 mg/m³ (10 ppm)
80 mg/m³ (20 ppm)

REACH Regulation 1907/2006
The substance is included in the REACH candidate list as a substance of very high concern.
Recommendations of the MAK commission
The information is merely a scientific recommendation and not applicable legislation.
–20 ml/m³–

82 mg/m³–Peak limitation: excursion factor 2–Duration 15 min, mean; 4 times per shift; interval 1 h–Category I: Substances for which local irritant effects determine the exposure limit value, also respiratory allegens–

Risk of skin adsorption–

Pregnancy risk group C
There is no reason to fear a risk of damage to the developing embryo or foetus when the MAK (max. concentration at theworkplace) and BAT (biological tolerance at the workplace) values are observed.

–

N-methyl-2-pyrrolidone (vapor)
The substance can be present in the air both as vapor and aerosol simultaneously.

Biological limits (BGW)––––

Parameter:
Limit:
Material:
Sampling:

R 0002 EN

5-hydroxy-N-methyl-2-pyrrolidone
150 mg/l
Urine
End of exposure or shift3

4 Personal safety measuresÎ Wear suitable protective gloves when mounting or removing the diaphragm.
Suitable protective gloves made of butyl rubber, butyl (0.5 mm, permeation breakthrough time ≥ 8 hours) or nitrile butadiene
rubber (NBR). Recommended material thickness: ≥0.38 mm, min. permeation breakthrough time: ≥480 min.
The following materials are not suitable due to degradation, severe swelling or low permeation breakthrough time:– Natural rubber (NR), natural latex– Polychloroprene (CR)– Nitrile butadiene rubber (NBR), material thickness: <0.38 mm, min. permeation breakthrough time: <480 min.
– Nitrile/latex, material thickness: <0.38 mm, min. permeation breakthrough time: <480 min.
– Fluorocarbon rubber (FKM)– Polyvinyl chloride (PVC)
Î Do not inhale any released dusts.
–General dust limit: 3 mg/m³ and 10 mg/m³–Respiratory protection: FFP1 or FFP2 in case of dust formation

5 Environmental protection measures
Î Use an extraction system if fiber dust is created during processing. Make sure the substance is not released into the sewagesystem.
Î Diaphragms must be replaced by properly trained and instructed staff only. Make sure that these instructions are available tothe staff before replacing any diaphragms.
Î Do not machine or heat up diaphragms before use. Mount the diaphragm as specified in the applicable instructions. Close thevalve body or actuator housing afterwards.

6 Further instructions on handling the whole article (diaphragm)
In cases where the diaphragms are used in machinery or systems to produce the following products:–

Medical devices and pharmaceuticals–

Foodstuffs, food additives, aromas or flavors used in foodstuffs–

Substances, mixtures or products that may later make extensive contact with skin or mucous membranes over extended periodsof timePrevent the reinforcing fabric from getting into direct contact with the above listed products.
Î Immediately replace damaged diaphragms.

7 Manufacturer address
SAMSON will keep you updated on all modifications concerning restrictions, requirements or other rules and regulations in connection with the substance NMP.
Î For up-to-date information: u REACH pages on the SAMSON website.

Specifications subject to change without notice

R 0002 EN

2020-05-08 · English

Î In cases of doubt, contact SAMSON's material compliance experts at the e-mail address:
compliance@samson.de